HARADA Yasunori

J-GLOBAL         Last updated: Mar 28, 2019 at 10:58
 
Avatar
Name
HARADA Yasunori
Affiliation
University of Hyogo
Section
Graduate School of Engineering
Job title
Associate Professor
Degree
(BLANK)

Research Areas

 
 

Published Papers

 
Effect of Different Shot Peening Treatments on Fatigue Life in Ti Alloy
HARADA Yasunori, Yuto Saeki and Katsuhiko Takahashi
Materials Science Forum   941 908-913   Dec 2018   [Refereed]
原田泰典, 大野宏人, 西久保祐貴, 前田成重
銅と銅合金   57 142-147   Aug 2018   [Refereed]
原田 泰典
チタン = Titanium Japan   66(2) 118-122   Apr 2018
Yasunori Harada, Hiroto Ono, Yuki Nishikubo
Materials Science Forum   920 MSF 64-69   Jan 2018   [Refereed]
? 2018 Trans Tech Publications, Switzerland. Cladding is the bonding together of dissimilar metals. One of clad products is the titanium clad steel sheet. It is effective to cover with pure titanium sheet to improve the corrosion resistance of the...
Yasunori Harada, Minoru Matsumoto, Masayuki Nunobiki, Katsuhiko Takahashi
Materials Science Forum   879 703-708   Jan 2017   [Refereed]
? 2017 Trans Tech Publications, Switzerland. Magnesium alloy has a wide range of application prospects in the automobile and electronic industries. However, peeling of the coating material may occur under harsh environments such as high and low te...
Deep drawability of Ti/resin/Ti laminated sheet
HARADA Yasunori, Shuji Hattori
AIP Conference Proceedings 1896   1896 080005   2017   [Refereed]
Surface Modification of Aluminium Alloy by Shot Lining and Laser Heating
HARADA Yasunori
Proceedings of ISAAT2017   P060   2017   [Refereed]
Improvement in fatigue life of Ti-6Al-4V alloy by microshot peening and ultrasonic shot peening
HARADA Yasunori, Masaki Nakahira, Yuto Saeki, Kanehisa Hattori
Proceedings of ISAAT2017   R521   2017   [Refereed]
HARADA Yasunori, SAEKI Yuto, TANAKA Syusei
Journal of the Japan Society for Abrasive Technology   61(6) 326-330   2017   [Refereed]
The effects of microshot peening on the surface characteristics and fatigue strength of spring steel were investigated. An air-type machine was used. The microshots used consisted of high-carbon cast steel and cemented carbide with an average diam...
Takaki Ogawa, Ninshu Ma, Minoru Ueyama, Yasunori Harada
Journal of Physics: Conference Series   734    Sep 2016   [Refereed]
? Published under licence by IOP Publishing Ltd. The prediction of formability of titunium is more difficult than steels since its strong anisotropy. If computer simulation can estimate the formability of titanium, we can select the optimal formin...
Yasunori Harada, Izumi Fukuda, Atsushi Yamamoto
Materials Transactions   57(6) 966-972   Jan 2016   [Refereed]
? 2016 The Japan Society for Technology of Plasticity. This paper deals with the effect of shot peening on the bending strength of an AZ31 magnesium alloy pipe. Magnesium alloy has a wide range of application prospects in the automobile and electr...
Development of 3D thick shell and its validity for sheet metal forming
N. Ma, X. Zhu, T. Ogawa, R. Liu, Y. Harada
Journal of Physics: Conference Series 734   032120   2016   [Refereed]
HARADA Yasunori
Journal of The Surface Finishing Society of Japan   67(1) 2-7   2016   [Refereed][Invited]
OHTAGAKI Tomohisa, NAKATANI Masanori, HARADA Yasunori
Journal of the Society of Materials Science, Japan   64(11) 865-871   Jan 2015   [Refereed]
The influence of shot peening on the fatigue strength in an extruded magnesium alloy AZ80 treated with T6 was investigated and its anisotropic behavior was discussed. The specimen was machined from different orientations in as-extruded rod. One wa...
Yasunori Harada, Minoru Ueyama
Key Engineering Materials   651-653 1072-1077   Jan 2015   [Refereed]
? (2015) Trans Tech Publications, Switzerland. This paper deals with the formability of pure titanium sheet in square cup deep drawing. Pure titanium has very excellent corrosion resistance. In the metal forming process, pure titanium has very goo...
巻頭言・学会への参加と大学での研究について
HARADA Yasunori
522 1   2015   [Refereed]
HARADA Yasunori, FUKUDA Izumi, YAMAMOTO Atsushi
Journal of the Japan Society for Technology of Plasticity   56(649) 139-145   2015   [Refereed]
This paper deals with the effect of shot peening on the bending strength of an AZ31 magnesium alloy pipe. Magnesium alloy has a wide range of application prospects in the automobile and electronic industries. AZ31 alloy is the most widely used com...
NAKATANI Masanori, SHIMIZU Shota, HARADA Yasunori, UCHIDA Hitoshi
Transactions of the JSME (in Japanese)   81(824) 14-00590-14-00590   2015   [Refereed]
The effect of functionally graded TiN coating on the wear and fretting fatigue behavior of titanium alloy was investigated. The two kinds of monolayer TiN coatings and three kinds of functionally graded TiN coatings were deposited on Ti-6Al-4V all...
NUNOBIKI Masayuki, HARADA Yasunori, OKUDA Koichi
Journal of the Japan Society for Abrasive Technology   59(9) 516-520   2015   [Refereed]
Recently, there has been increasing demand for long life of industrial products. High-strength alloy coating on necessary parts can decrease manufacturing costs for prolongation of life. This study proposes a laser surface alloying method to form ...
Yasunori Harada, Masayuki Nunobiki
Materials Science Forum   773-774 818-823   Jan 2014   [Refereed]
In shot peening, bombarding the surface with steel shot propelled at high velocity causes plastic deformation of surface. The process with the characteristic deformation was applied to joining process. Our approach has been applied to the butt joi...
HARADA Yasunori
JOURNAL OF THE JAPAN WELDING SOCIETY   83(3) 189-194   Jan 2014   [Refereed][Invited]
Masayuki Nunobiki, Yasunori Harada, Koichi Okuda
Advanced Materials Research   1017 794-799   Jan 2014   [Refereed]
? (2014) Trans Tech Publications, Switzerland. Recently, the demand for long life to industrial products has risen. The high strength alloy coating on necessary part can decrease a manufacturing cost for life prolongation. This study proposes a la...
Yasunori Harada, Minoru Ueyama
Procedia Engineering   81 881-886   Jan 2014   [Refereed]
? 2014 The Authors. Published by Elsevier Ltd. Aiming to expand the use of the product, the formability of pure titanium sheet by square cup deep drawing was investigated. Forming of titanium sheet was tried by multistage deep drawing. In the expe...
Izumi Fukuda, Yasunori Harada, Shunpei Ohtsuka
Procedia Engineering   81 742-747   Jan 2014   [Refereed]
? 2014 The Authors. Published by Elsevier Ltd. This paper deals with effect of temperature on stretchability of anisotropic AZ31(Mg-3%Al-1%Zn) magnesium alloy sheet. Results of stretching process test are compared with those of tensile test. The s...
Yasunori Harada, Makoto Ishida, Katsuhiko Takahashi
Materials Science Forum   783-786 1414-1419   Jan 2014   [Refereed]
Shot peening is widely utilized to improve the fatigue property of mechanical parts for transportation equipment such as cars and airplanes. Also, this technology is being applied as a film-forming technology in order to improve surface quality. T...
Yasunori Harada, Yutaro Maeda, Minoru Ueyama, Izumi Fukuda
Procedia Engineering   81 819-824   Jan 2014   [Refereed]
? 2014 The Authors. Published by Elsevier Ltd. The improvement of formability has been investigated in the multistage deep drawing of beta titanium alloy sheet. The beta titanium alloys have good cold workability in the metal forming. However, a s...
Masanori Nakatani, Shota Shimizu, Yasunori Harada, Hitoshi Uchida
Advanced Materials Research   891-892 897-902   Jan 2014
The influence of functionally graded TiN coating on the fretting fatigue behavior of titanium alloy was investigated. The coating was deposited on Ti-6Al-4V alloy substrate using an ion beam assisted deposition technique. TiN film was fabricated b...
Yasunori Harada, Syusei Tanaka, Manabu Itoh, Masanori Nakatani
Procedia Engineering   81 1493-1498   Jan 2014   [Refereed]
? 2014 The Authors. Published by Elsevier Ltd. The effect of microshot peening on the surface characteristics and fatigue life of spring steel SUP9 was investigated. In the experiment, the projective method of the microshot was of the compressed a...
Yasunori Harada, Hiroki Kosaka, Makoto Ishihara
Steel Research International   84 1333-1339   Dec 2013   [Refereed]
The shot peening process is a widely used surface treatment method for improving fatigue strength and anti-wear characteristics. The surface of the material receives a so-called peening effect where strong local deformation forms a work-hardened l...
Yasunori Harada, Atsushi Yamamoto, Takayuki Goto, Eiji Nakamura
8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8   2 1049-1056   Jan 2013
The Mg-Li alloy which is a beta type alloy was subjected to cold deep drawing, and the formability of Mg-Li alloy sheet was investigated by the square cup deep drawing process. This alloy is about 20 % lighter than a practical alloy. The square cu...
Izumi Fukuda, Yasunori Harada
8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8   2 1229-1236   Jan 2013
This paper deals with effect of shot peening on bending strength of cylindrical pipe of AZ31(Mg-3%Al-1%Zn) magnesium alloy. Specimen shape of the pipe is 240mm in gauge length and 330mm in total length, 22mm and 18mm in outer and inner diameters. ...
Yasunori Harada, Makoto Ishida, Katsuhiko Takahashi, Yoshinori Sakamoto
8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8   3 2035-2042   Jan 2013
The formation of an Fe-Al intermetallic compound film on hot work tool steel by shot lining and heat treatment was investigated. In the shot lining method, the metals are bonded with the dissimilar metal by applying plastic deformation and the pre...
原田 泰典, 布引 雅之
銅と銅合金 : 銅及び銅合金技術研究会誌 = Copper and copper alloy : journal of Japan Research Institute for Advanced Copper-Base Materials and Technologies   52(1) 61-65   2013   [Refereed]
SANADA Yohei, NAKATANI Masanori, HARADA Yasunori, UCHIDA Hitoshi
The Proceedings of the Symposium on Micro-Nano Science and Technology   2013(0) 43-44   2013
The Mechanical property of free-standing Cu/Al_2O_3 multilayer thin film was investigated by a method of micro-bending test. The Cu and Al_2O_3 monolayer thin film and Cu/Al_2O_3 multilayer thin film were deposited on Si substrate by an electron b...
HARADA Yasunori, GOWA Daisuke
Journal of the Japan Society for Abrasive Technology   56(10) 691-696   Oct 2012   [Refereed]
The effects of microshot peening on the compressive residual stress of spring steel were investigated. The compressed air method was used for projection of microshots consisting of high-carbon cast steel and cemented carbide 0.1 mm in diameter. Th...
HARADA Yasunori, INOUE Chikako
Journal of the Japan Society for Abrasive Technology   56(10) 685-690   Oct 2012   [Refereed]
This paper explores the thermomechanical treatment consisting of shot peening and heating applied to carbon steel, and the effects on surface characteristics and fatigue characteristics. Shot peening was performed with an air-type machine using ca...
Yasunori Harada, Atsushi Yamamoto, Takayuki Goto, Eiji Nakamura
Materials Science Forum   706-709 1164-1169   Jan 2012   [Refereed]
The formability of the magnesium-lithium alloy was examined by multi-stage deep drawing. Long cups of magnesium alloy were formed at ambient temperatures by multi-stage deep drawing processes. In multi-stage deep drawing, the magnesium-lithium all...
Yasunori Harada, Yuji Miura, Katsuhiko Takahashi
Advanced Materials Research   409 802-807   Jan 2012   [Refereed]
The formation of an Fe-Al intermetallic compound film on carbon steel by shot lining and heat treatment was investigated. In the experiment, a centrifugal-type peening machine with an electrical heater was employed. The shot medium was high-carbon...
Y. Harada, M. Nunobiki
Proceedings of the 10th International Conference on Technology of Plasticity, ICTP 2011   730-735   Dec 2011   [Refereed]
The cold joining of thin sheets using a shot peening process was investigated. In the joined section, the edge shape of two sheets is a concavo-convex. In this method, the convex edges of the sheet are overlapped the other sheet. When the connecti...
Y. Harada, T. Tsuda, I. Fukuda
Special Edition: 10th International Conference on Technology of Plasticity, ICTP 2011   402-407   Dec 2011   [Refereed]
The formability in multi-stage deep drawing process of pure titanium sheet was Investigated. Pure titanium has very good ductility In cold forming. The normal anisotropy of pure titanium Is very high, about 5 or 6 of the r-value. Therefore, the pr...
Yasunori Harada, Daisuke Gowa, Toshiya Tsuji, Yuji Kobayashi
Advanced Materials Research   325 745-750   Sep 2011   [Refereed]
In general, shot peening is a surface treatment that improves the performance of engineering components, since application of surface compressive stresses reduces the tensile component of stress. In the shot peening process, the medium consists of...
Yasunori Harada
Advanced Materials Research   325 739-744   Sep 2011   [Refereed]
The shot peening process is one of the surface treatments. In this process the peening effects are characterized by the fact that the surface layer undergoes large plastic deformation due to the collision of shots. The effects are greatly influenc...
Yasunori Harada
AIP Conference Proceedings   1315 947-952   Dec 2010   [Refereed]
In shot peening the substrate undergoes large plastic deformation near the surface due to the hit with shots. The plastic flow areas formed by cold working may form the surface layer. Authors have recently proposed new joining methods using shot p...
Yasunori Harada, Ryota Yakura
AIP Conference Proceedings   1315 745-750   Dec 2010   [Refereed]
The shot peening process is one of the surface treatments. The peening effects are characterized by the fact that the surface layer undergoes large plastic deformation due to the collision of shots. This action imparts compressive residual stress ...
岡井 紀彦, 春日 幸生, 村上 碩哉, 原田 泰典, 杉山 澄雄
塑性と加工   51(595) 777-781   Aug 2010   [Refereed]
Izumi Fukuda, Yasunori Harada, Yuichi Tanaka
Materials Science Forum   654/656(Pt.1) 747-750   Aug 2010   [Refereed]
This paper deals with the effect of temperature on plastic buckling strength of cylindrical pipe of some magnesium alloys subjected to shot peening process. Workpieces are three cylindrical pipes of AZ31, AZ61 and AZ80 magnesium alloys. The shape ...
Yasunori Harada, Toshiyuki Araki, Takahiro Tsuda
Materials Science Forum   654/656(Pt.2) 1307-1310   Aug 2010   [Refereed]
The pure titanium long-cups were formed by preventing the seizing in cold multi-stage deep drawing processes. For the prevention, pure titanium sheets were treated by heating oxide coating. The coating is very effective in preventing the occurrenc...
Yasunori Harada, Koji Yoshida
Materials Science Forum   654/656(Pt.1) 374-377   Aug 2010   [Refereed]
Shot peening is a surface treatment that improves the performance of engineering components. In conventional shot peening, the medium consists of small spheres, which are usually made of high-carbon cast steel; the diameter of the spheres is in th...
HARADA Yasunori, AOKI Toshinori
Journal of the Japan Society for Technology of Plasticity   51(589) 126-130   Feb 2010   [Refereed]
HARADA Yasunori, SHIMOIRISA Shinya, TAKAHASHI Katsuhiko
Journal of the Japan Society for Technology of Plasticity   51(589) 131-135   Feb 2010   [Refereed]
Yasunori Harada
Materials Science Forum   654/656(Pt.2) 1327-1330   Aug 2010   [Refereed]
The cold joining of dissimilar metal sheets using a shot peening process was investigated. In shot peening the substrate undergoes large plastic deformation near the surface due to the hit with shots. Consequently, plastic flow areas formed by col...
Y. Harada, I. Fukuda
Transactions of Nonferrous Metals Society of China (English Edition)   20(SUPPL. 2) 708-712   Jul 2010   [Refereed]
To improve the surface properties, lining of magnesium alloys with hard powders by shot peening was carried out in order. The hard powders were tried to bond to the workpiece surface due to the collision of many shots. In order to fix the hard pow...
HARADA Yasunori, ARAKI Toshiyuki, TSUDA Takahiro, MORI Shoji
The Proceedings of Conference of Kansai Branch   2010(85) "3-19"   Mar 2010
HARADA Yasunori, YOSHIDA Koji, FUKAURA Kenzo, YAMAGUCHI Naohiko, TSUJI Toshiya, KOBAYASHI Yuji
The Proceedings of Conference of Kansai Branch   2010(85) "3-18"   Mar 2010
HARADA Yasunori
The Proceedings of Conference of Kansai Branch   2010(85) "3-16"   Mar 2010
Yasunori Harada, Takeshi Uemori
Materials Science Forum   638-642 3667-3672   Feb 2010   [Refereed]
In the shot peening process, the substrate undergoes large plastic deformation near the surface due to the hit with many shots. A large plastic deformation characterized by a shear droop occurs at the edge of the substrate. When the dissimilar she...
HARADA Yasunori, KOHAMADA Suguru
Journal of the Japan Society for Technology of Plasticity   51(592) 424-428   2010   [Refereed]
Development of multi-stage deep drawing of titanium-clad cup
原田泰典
Titanium Japan   58(1) 33   2010   [Refereed]
原田 泰典, 青木 俊憲
Journal of the Japan Society for Technology of Plasticity   51(589) 126-130   2010   [Refereed]
Shot peening is a surface treatment that improves the performance of engineering components. In conventional shot peening, the medium consists of small spheres, which are usually made of high-carbon cast steel; the diameter of the spheres is in th...
Yosuke Aoyama, Midori Komada, Yoshikazu Kuroda, Teruo Takahashi, Noriyuki Tsuchida, Yasunori Harada, Kenzo Fukaura
Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy   56(3) 103-107   Mar 2009   [Refereed]
Microstructure and mechanical properties of high nitrogen steels containing l7Cr-l2Mn-3Mo produced by means of metal injection moulding and nitrogen absorption methods were examined. The compacts were sintered at 1300°C, then furnace-cooled to 120...
AOYAMA Yosuke, KURODA Yoshikazu, TAKAHASHI Teruo, TSUCHIDA Noriyuki, HARADA Yasunori, FUKAURA Kenzo
Journal of the Japan Society of Powder and Powder Metallurgy   56(3) 98-102   Mar 2009   [Refereed]
High nitrogen stainless steel (Fe-17Cr-12Mn-3Mo-1N) fabricated by metal injection molding (MIM) method has prominent strength and ductility. However, the tensile properties are unexplainable only by the influence of nitrogen solid solution strengt...
FUKUDA Izumi, TANAKA Yuichi, HARADA Yasunori
塑性と加工   50(576) 59-63   Jan 2009   [Refereed]
Yasunori Harada, Ryota Yakura
Proceedings of the 17th IFHTSE Congress   1 349-352   Jan 2009   [Refereed]
Many machine parts are used in manufacturing industry, such as automobile and aircraft. In association with the reduced size, the need for higher strength and fatigue life of parts becomes increasingly severe. One of these high demands on automoti...
Yasunori Harada, Kenzo Fukaura, Daien Yokoi
Proceedings of the 17th IFHTSE Congress   1 345-348   Jan 2009   [Refereed]
Shot peening is one of the surface treatments, and improves the performance of engineering components. In a conventional shot peening process, the peening media consists of small spheres. The shot media is usually made of high carbon cast steel; t...
福田 泉, 田中 裕一, 原田 泰典
Journal of the Japan Society for Technology of Plasticity   50(576) 59-63   2009   [Refereed]
Various mechanical properties of magnesium alloys have been reported by many researchers. Some researchers have studied the plastic buckling behaviors of magnesium alloys, but the effect of shot peening on plastic buckling strength of magnesium al...
Yasunori Harada, Kenzo Fukaura
International Journal of Modern Physics B   22 6094-6099   Dec 2008   [Refereed]
High-speed steels are generally used for the cutting of other hard materials. These are hard materials, and can be used at high temperatures. Therefore, some of them are used for warm metal forming such as forging. However, in the tools used in ho...
Yasunori Harada, Yuji Kobayashi
International Journal of Modern Physics B   22 6100-6105   Dec 2008   [Refereed]
Aluminum and magnesium materials are very attractive for light weight applications. However, their use is complicated by the fact that dissimilar metals are joined by fusion welding. In the present study, the cold butt joining of light metal sheet...
MORI Ken-ichiro, MAKI Seijiro, ARISAWA Naotaka, UENO Kanji, HOKAZONO Yasuji, YAMAZAKI Takuya
塑性と加工 = JOURNAL OF THE JAPAN SOCIETY FOR TECHNOLOGY OF PLASTICITY   49(574) 1106-1110   Nov 2008   [Refereed]
TSUCHIDA Noriyuki, MORIMOTO Yoshiki, OKAMOTO Shoji, FUKAURA Kenzo, HARADA Yasunori, UEJI Rintaro
Journal of the Japan Institute of Metals and Materials   72(9) 769-775   Sep 2008   [Refereed]
To investigate the role of stress-induced martensitic transformations in the TRIP effect, stress-strain curves and TRIP effects in two types of metastable austenite steel (JIS-SUS304 and JIS-SUS301L) were compared. In static tensile tests, the ten...
N. Tsuchida, H. Masuda, Y. Harada, K. Fukaura, Y. Tomota, K. Nagai
Materials Science and Engineering A   488 446-452   Aug 2008   [Refereed]
Stress-strain curves for ferrite-cementite (FC) steels with ferrite grain sizes between 0.47 and 13.6 μm were studied by tensile tests with strain rates of 103, 100, and 3.3 × 10-4s-1at 296 K. The stress-strain curves for the FC steels are categor...
Y. Harada, K. Fukauara, S. Kohamada
Journal of Materials Processing Technology   201 319-324   May 2008   [Refereed]
The effects of microshot peening on the surface characteristics of high-speed tool steel were investigated. Shot peening is widely used in automotive industry to enhance fatigue life and the surface characteristics of machine parts. More recently,...
Yasunori Harada, Makoto Fukunaga, Makoto Fukunaga, Atsushi Yamamoto
Materials Transactions   49 1132-1136   May 2008   [Refereed]
Magnesium and its alloys are very attractive for light weight applications. However, their use is complicated by the fact that dissimilar metals are joined by fusion welding. In the present study, the ability of shot peening to enhance butt joinin...
HARADA Yasunori
塑性と加工 = JOURNAL OF THE JAPAN SOCIETY FOR TECHNOLOGY OF PLASTICITY   49(567) 281-287   Apr 2008   [Refereed]
MORI Ken-ichiro, SAITO Shoichi, MAKI Seijiro, KISHIMOTO Makoto, HAYASHI Tatsushi, OKUMURA Toshihiko
Journal of the Japan Society for Technology of Plasticity   49(564) 56-60   Jan 2008
The features of sheared edges in warm and hot punching of an ultra high strength steel sheet using resistance heating were examined. As the heating temperature increased, the depth of the shiny burnished surface on the sheared edge increased and t...
Y. Aoyama, Y. Kuroda, M. Komada, N. Tsuchida, Y. Harada, K. Fukaura
9th International Conference on Technology of Plasticity, ICTP 2008   1467-1470   Jan 2008   [Refereed]
Microstructure and mechanical properties of high nitrogen steels whose chemical composition were Fe-17Cr-12Mn-3Mo-0.2N and that was produced by using metal injection moulding method and nitrogen absorption methods were examined. Especially, we hav...
Y. Harada, M. Fukunaga, K. Fukaura, Y. Kobayashi
9th International Conference on Technology of Plasticity, ICTP 2008   401-406   Jan 2008   [Refereed]
Butt joining of dissimilar metal sheets using a shot peening process was investigated. Shot peening is one of the surface treatment and improves the performance of engineering components. In this process, the base metal undergoes a large plastic d...
Y. Harada, K. Fukaura, Y. Kobayashi
9th International Conference on Technology of Plasticity, ICTP 2008   1199-1204   Jan 2008   [Refereed]
In the present study, a joining process for carbon steel using shot peening was investigated to improve surface characteristics such as corrosion and oxidation resistance. Shot peening treatment was performed by using an air-type peening machine. ...
K. Fukaura, M. Komada, Y. Kuroda, N. Tsuchida, Y. Harada
9th International Conference on Technology of Plasticity, ICTP 2008   2164-2169   Jan 2008   [Refereed]
Microstructure and mechanical properties of high nitrogen steels containing 17Cr -12Mn- 3Mo produced by means of metal injection moulding and nitrogen absorption methods were examined. The compacts were sintered at 1300, then furnace-cooled to 120...
Yasunori Harada, Kenzo Fukaura
Steel Research International   79 57-64   Jan 2008   [Refereed]
In recent years, the application for various tool steels is expanding. In association with the reduced size and the strengthening of the components, the need for higher repeated durability of the tools becomes increasingly severe. Therefore, the s...
NOGUCHI Masashi, OKUBO Fujio, MURAO Takuji, MORI Ken-ichiro, HARADA Yasunori
塑性と加工 = JOURNAL OF THE JAPAN SOCIETY FOR TECHNOLOGY OF PLASTICITY   48(563) 1075-1078   Dec 2007   [Refereed]
Yasunori Harada, Kenzo Fukaura, Daegi Kim
Materials Science Forum   561-565 853-856   Dec 2007   [Refereed]
A lining process for carbon steel using shot peening was investigated. In the shot peening experiment, the dissimilar foil set on the carbon steel substrate is pelted with many shots at a high velocity. The foil is bonded to the surface of the sub...
Ryo Murakami, Yousuke Aoyama, Noriyuki Tsuchida, Yasunori Harada, Kenzou Fukaura
Materials Science Forum   561-565 37-40   Dec 2007   [Refereed]
Particular attention is called to nickel-free or lower nickel austenitic stainless steels containing high nitrogen from the viewpoint of protections against earth resources and Ni allergy for human being. We have made high nitrogen steels (HNS) th...
Yasunori Harada, Makoto Fukunaga, Kenzo Fukaura, Satoru Ujihashi, Yuji Kobayashi
Materials Science Forum   561-565 843-846   Dec 2007   [Refereed]
The butt joining of dissimilar sheets using a shot peening process was investigated. Shot peening is a surface treatment and improves the performance of engineering components. In shot peening, the substrate undergoes a large plastic deformation n...
Yasunori Harada, Kenzo Fukaura, Toshinori Aoki, Daien Yokoi, Yasushi Haruna
Materials Science Forum   561-565 897-900   Dec 2007   [Refereed]
Shot peening is a surface treatment and improves the performance of engineering components. More recently, a new type of microshot has been developed to enhance peening effect. In the present study, the influence of microshot peening on the surfac...
Yasunori Harada, Kenzo Fukaura, N. Tsuchida
Materials Science Forum   539-543 1080-1085   Dec 2007   [Refereed]
In this study, the grain refinement near the surface of metal workpiece using hot shot peening was investigated to improve the surface properties of the workpiece. In this process, the grains were refined due to plastic deformation generated by th...
Y. Harada, K. Fukaura, S. Haga
Journal of Materials Processing Technology   191 297-301   Aug 2007   [Refereed]
The influence of microshot peening on the surface layer characteristics of the structural steel was investigated. Shot peening is one of the surface treatments and it is a mechanical surface treatment widely used in automotive industry to enhance ...
Yasunori Harada, Kenzo Fukaura, Ken Ichiro Mori
Key Engineering Materials   345-346 I 121-124   May 2007   [Refereed]
In the multi-stage deep drawing processes of a beta titanium alloy sheet, the formability has been investigated. The beta titanium alloy sheets have sufficient ductility at room temperature, whereas a seizure tends to occur during deep drawing due...
Yasunori Harada, Kenzo Fukaura
Key Engineering Materials   340-341 II 865-870   Apr 2007   [Refereed]
In this study, plastic flow joining using a shot peening process was investigated. Surface treatment is necessary to improve the surface properties. Shot peening is one of the surface treatments. Since the surface of substrate is hit repeatedly wi...
HARADA Yasunori, KOHAMADA Suguru, TSUCHIDA Noriyuki, FUKAURA Kenzo
Journal of the Japan Society for Abrasive Technology   51(3) 161-166   Mar 2007   [Refereed]
Yoshikazu Kuroda, Midori Komada, Ryo Murakami, Ryo Murakami, Shingo Fukumoto, Noriyuki Tsuchida, Yasunori Harada, Kenzou Fukaura
Advanced Materials Research   24-25 15-18   Jan 2007   [Refereed]
Ni-free austenitic steels containing high nitrogen have been developed to protect against earth resource. High nitrogen steels (HNS) have a lot of advantages, e.g., HNS have high strength, corrosion resistance, toughness, work hardening rate and l...
Midori Komada, Yoshikazu Kuroda, Ryo Murakami, Noriyuki Tsuchida, Yasunori Harada, Kenzou Fukaura, Shingo Fukumoto
Advanced Materials Research   24-25 19-22   Jan 2007   [Refereed]
Microstructure and mechanical properties of high nitrogen steels whose chemical composition were Fe-17Cr-12Mn-3Mo and that was produced by using metal injection molding method and nitrogen absorption methods were examined. A compact which is furna...
NOGUCHI Masashi, OKUBO Fujio, MURAO Takuji, MORI Ken-ichiro, HARADA Yasunori
Journal of the Japan Society for Technology of Plasticity   48(563) 1075-1078   2007   [Refereed]
Y. Harada, T. Murao, K. Mori, N. Tsuchida, K. Fukaura
Materials Science Forum   505-507 763-768   Dec 2006   [Refereed]
In this study, deep drawing using plastic die was investigated to prevent seizure during forming. In the deep drawing process of aluminum and titanium sheets, seizure was found to occur during forming due to a high reactivity with other metals. Fo...
Shigeyoshi Haga, Yasunori Harada, Harushige Tsubakino
Materials Science Forum   505-507 775-780   Dec 2006   [Refereed]
In this study, we've used carburized-quenched-tempered steels that received shot-peening process with different shot grain sizes and evaluated variation of surface property of the steels. As a result of study, it is demonstrated that the fatigue l...
HARADA Yasunori, FURUKAWA Yosuke, MURAO Takuji, MORI Ken-ichiro, TSUCHIDA Noriyuki, FUKAURA Kenzo
Journal of the Japan Society for Technology of Plasticity   47(548) 850-854   Sep 2006   [Refereed]
Y. Harada, N. Tsuchida, K. Fukaura
Journal of Materials Processing Technology   177 356-359   Jul 2006   [Refereed]
In this study, joining and shaping fit of dissimilar materials by the shot peening process was investigated. In this process, two kinds of shot peening machines, a compressed-air type and a centrifugal type, were employed. To join dissimilar mater...
CAO Qifeng, TSUCHIYA Koichi, HARADA Yasunori, TOMUS Dacian, MORII Koichi, TODAKA Yoshikazu, UMEMOTO Minoru
Journal of the Japan Institute of Metals and Materials   70(6) 473-477   Jun 2006   [Refereed]
Evolution of surface roughness and microstructure in Ti-50.9 mol%Ni shape memory alloy by shot peening were investigated by X-ray diffractometry and transmission electron microscopy. The crystallite size decreased significantly by shot peening of ...
HARADA Yasunori, UJIHASHI Satoru, UMEMURA Mitsugi, KOBAYASHI Yuji, TSUCHIDA Noriyuki, FUKAURA Kenzo
Journal of the Japan Society for Technology of Plasticity   47(542) 221-225   Mar 2006   [Refereed]
HARADA Yasunori, UESUGI Hideto, MORI Ken-ichiro, UMEMURA Mitsugi, TSUCHIDA Noriyuki, FUKAURA Kenzo
Journal of the Japan Society for Technology of Plasticity   47(542) 216-220   Mar 2006   [Refereed]
Yasunori Harada
Keikinzoku/Journal of Japan Institute of Light Metals   56(12) 730-736   Jan 2006   [Refereed]

Misc

 
High Temperature X-Ray Studies in Fe-Cr Sigmatization
11(1)    1986
Microstructures of Directionally Frozen in situ Composites of Multicomponent Eutectics
The Indian Academy of Science, SADHANA   11    1987
Rolling of Sintered Powder Chromium
Advanced Technology of Plasticity 1990, ICTP      1990
Dynamic Strain Aging Behavior of Cast and Sintered Chromiums
Ultra High Purity Base Metals, UHPM-94   1 353-358   1994
"Relationshop between Bond Strength and Interfacial Behavior in Pressure Welding of Aluminium"
   1991
"Relationshop between Bond Strength and Interfacial Behavior in Pressure Welding of 0.25%C Steel"
   1991
Effect of Interfacial Silide on Pressure Welding
   1991
Surface Improvement by Hot Shot-peening Process
   1991
Pipe Bending by Movable Expanding Plug
   1991
Characteristics of Pressure Weldability of Aluminium Alloys
   1993
Influence of Plug Shape on Pipe Bending by means of Floating Expanding Plug
   1993
Change on Tensile Properties of Cr-Ni Powder by Repeated Rolling and Anneding
   1993
Bending of Polycarbonate Pipe by Floating Expanding Pipe
   1993
Improrement in Mechanical Properties of Chromium-Nickel Sintered powders due to Thermomechanical Treatment
65-66   1995
Pipe Bending Using Reducing Die
13-14   1995
Simultaaneous Jounung of Sintered Product tot Ingot Metal Parts in Resistance Sintering
3-4   1995
Improvement of Mechanical Properties of Chromium-Nickel Sintered Powedrs by Repeated Rolling and Annealing
   1995
Fundamental Study on Effect of Superficial Plaxtic Deformation by Shot Stage
943(2) 159-160   1994
The Characteristic of Deformation on Pipe Bending by Floating Expanding Plug
   1994
The Effects of Wall Thickness and Prereducing of Pipe on Bending by Floating Expanding Plug
   1994
Effect of Annealing Treatment on the Ductile-to-Brittle Transition Temperature of Chromium
   1994
Effect of Rolling on the Ductile-to-Brittle Transition Temperature of Chromium
   1994
Theoretical Analysis of Floating Expanding Plug Pipe Bending by Elementary Method
   1995
Production of Bent Oval Cross Sectional Pipe Using a Floating Expanding Plug
   1995
Alloying of Chromium-Nickel Sintered Powders by Repeated Rolling and Annealing
   1995
Condition of Resistance Sintered Iron Powder Compact
   1995
Effect of Pressurization on Extrusion Workability of Chromium
Advanced Technology of Plasticity 1996, ICTP   251-254   1996
Effect of Bending Condition on the Pipe Bending Method Using a Floating Expanding Plug
38(434) 73-78   1997
Surface Improvement of Chromium-Nickel Sintered Powders due to Hot Shot Peening
294-295   1996
Fatigue Strength of Aluminium Alloy Pressure Welded Joint
247-248   1997
Sinter-Forming of Metal Matrix Composite Making Use of Direct Resistance Heating
255-256   1997
Covering of Dissimilar Material on Metal Surface by Hot Shot Peening
499-500   1996
The Effects of Ultrasonic Vibration on Bending by Floating Expanding Plug
381-382    1996
Simultaneous Joining of Different Metal Powder Compacts in Resistance Sintering
497-498    1996
Improvement of Mechanical Properties of Chromium-Nickel Sintered Powders Repeated Rolling and Annealing
The 3rd Pacific Rim International Conference on Advanced Materials and Processing, PRICM-3   2707-2712   1998
Mechanical Properties of Chromium-Nickel Sintered Powders Produced by Means of A Thermo-Mechanical Treatment
The International Symposium on Designing, Processing and Properties of Advanced Engineering Materials, ISAEM-97   775-780   1998
Adhesive Test of Metals for Evaluation of Cold Pressure Weldability
The International Symposium on Designing, Processing and Properties of Advanced Engineering Materials, ISAEM-97   793-798   1998
Bending of Plastic Pipe Using Floating Expanding Plug
The International Symposium on Designing, Processing and Properties of Advanced Engineering Materials, ISAEM-97   751-756   1998
Draw Bending of Aluminum Pipes using Floating Expanding Plug
Proc. of 6th Int. Conf. on Aluminum Alloys, ICAA-6   443-448   1998
Characteristics of Reciprocating Slide Adhesion of Aluminum Metal
Proc. of 6th Int. Conf. on Aluminum Alloys, ICAA-6   1537-1542   1998
Lining of Aluminum Alloys with Hard Metal Foils Using Shot Peening
Proc. of 6th Int. Conf. on Aluminum Alloys, ICAA-6   1735-1740   1998
Bendability of Aluminum-and Steel-clad Chromium Plates
Metals and Materials   4(3) 426-431   1998
Bendebility of Aluminum-and steel-clad Chromium Plates
Metals and Meterials   4(3) 426-431   1998
Bending of Circular Pipe Making Use of a Floating Expanding Plug
Proc. 4th IC(AMPT98), Advances in Materials and Processing Technologies, Kuala Lumpur   515-522   1998
Improvement of Mechanical Properties of Spring Steel using Shot Peening
Proc. 6th Int. Conf. Tech. Plasticity   1489-1494   1999
Fatigue Strength of Pressure Welded Joint of Aluminum Alloys
Proc. 6th Int. Conf. Tech. Plasticity   1469-1474   1999
Effect of Processing Temperature in Warm Shot Peening of Spring Steel
213-214   1998
Pressurized Reaction Sintering of Intermetallic Compound TiAl Using Resistance Heat
221-222   1998
Mechanical Properties of Warm Shot Peening of Spring Steel
435-436   1999
Lining of Aluminum Alloys with Metal Foilds Using Shot Peening
97-98   1999

Conference Activities & Talks

 
Fatigue Improvement of Titanium Alloy by Compound Peening Using Microshot and Ultrasonic Vibration
HARADA Yasunori, SAEKI Yuto, HATTORI Kanehisa
The Proceedings of Conference of Kansai Branch   2017   
<p>The fatigue improvement of titanium alloy by microshot peening and ultrasonic peening was investigated. In the peening process, the equipment were used an air-type machine and ultrasonic peening machine. The microshot used were high-carbon cast...
Deep Drawability of Titanium/Mesh/Titanium Laminated Sheet
HARADA Yasunori, HATTORI Shuji, ONO Hiroto
The Proceedings of Conference of Kansai Branch   2017   
<p>Aiming to enhance functionality of titanium cup, the formability of titanium/mesh/titanium laminated sheet by deep drawing was investigated. In the experiment, the materials were pure titanium and stainless steel mesh. The laminated sheet was c...
Control of Earing in Deep Drawing of Pure Titanium Sheet
OHNO Hiroto, HARADA Yasunori
The Proceedings of Mechanical Engineering Congress, Japan   2017   
<p>The formability of the laminated titanium sheet was investigated to control the ears in the deep drawn cup. Planar anisotropy causes ears to form in drawn cups. To control the occurrence of the ears, the deep drawing of the laminated sheet in c...
Improvement of Fatigue Life by Microshot Peening for Inconel Alloy
HARADA Yasunori, KOKUBU Yuuki, SAEKI Yuto, HATTORI Kanehisa, UCHIZA Tomonobu
The Proceedings of Mechanical Engineering Congress, Japan   2017   
<p>The improvement of fatigue life in inconel alloy by microshot peening was investigated. Shot peening is a widely used surface treatment method for improving fatigue life. This process imparts compressive residual stresses on the surface, thus i...
Deep drawability of functional titanium clad cup
HATTORI Shuji, HARADA Yasunori
The Proceedings of The Manufacturing & Machine Tool Conference   2016   
<p>Aiming to enhance corrosion resistance of steel cup, the formability of pure titanium clad sheet by multistage deep drawing was investigated. The blank was constituted by interposing steel between two sheets of pure titanium sheets. In the expe...
Deep drawability of pure titanium sheet by using resin composite die
Harada Yasunori, Hattori Shuji, Noseda Shogo
The Proceedings of The Manufacturing & Machine Tool Conference   2016   
<p>Pure titanium sheet are commonly used in manufacturing today. In press forming, however, the seizure tends to occur during the deep drawing due to high reactivity with die materials. In the current study, by using the resin composite die, the t...
Formability of corrugated cup by die having rotating shoulder
Harada Yasunori
The Proceedings of The Manufacturing & Machine Tool Conference   2016   
<p>The formability of the corrugated cup was investigated by the deep drawing process. The die having rotating shoulder was used to enhance the functionality of the drawn cup. The blank is formed into a cylindrical cup by means of a punch that pre...
406 Drawability of corrugated cup by using planetary bearing ball die
HARADA Yasunori
The Proceedings of Conference of Kansai Branch   2016   
The applicability of a planetary bearing ball die was carried out to form the corrugated cup by a deep drawing process. The sheet SPCC was employed and a flat sheet blank was formed into a circular by punch. In the die, 16 balls of 10 mm in diamet...
P007 Effects of Micro Shot Peening on Surface Properties of Titanium Materials
SAEKI Yuto, HARADA Yasunori, HATTORI Kanehisa, WATANABE Yoshihiro
The Proceedings of Conference of Kansai Branch   2016   
P008 Functional film-forming of the magnesium alloy by shot lining and heat treatment
MATSUMOTO Minoru, HARADA Yasunori, NUNOBIKI Masayuki, TAKAHASHI Katsuhiko
The Proceedings of Conference of Kansai Branch   2016   
P006 Formability of titanium clad cup by deep drawing
HATTORI Shuji, UEYAMA Minoru, HARADA Yasunori
The Proceedings of Conference of Kansai Branch   2016   
Deep Drawability of Pure Titanium Sheet Considering Seizure Prevention
HARADA Yasunori, HATTORI Shuji, NOSEDA Syogo
The Proceedings of Mechanical Engineering Congress, Japan   2016   
<p>In press forming, pure titanium sheet has sufficient ductility. However, the seizure tends to occur during the deep drawing due to high reactivity with die materials. In the current study, by using the resin composite die, the titanium cups wer...
Formability of Pure Titanium Square Cup by Multistage Deep Drawing
HARADA Yasunori, UEYAMA Minoru, HATTORI Shuji, OGAWA Takaki, MA Ninshu
The Proceedings of Mechanical Engineering Congress, Japan   2016   
<p>In press forming, pure titanium sheet has sufficient ductility. However, the seizure tends to occur during the deep drawing due to high reactivity with die materials. The authors reported that the heat oxided sheets were treated by oxide coatin...
Fatigue Characteristics of Stainless Steel by Ultrasonic Shot Peening and Microshot Peening
HARADA Yasunori, SAEKI Yuto, SHIBASAKI Kazuma, HATTORI Kanehisa, WATANABE Yoshihiro
The Proceedings of Mechanical Engineering Congress, Japan   2016   
<p>The effects of projection conditions on the surface hardness and fatigue strength of stainless steel was investigated. In the peening process, the equipment were used an air-type machine and ultrasonic peening machine. The microshot media used ...
The Peening effect exerted on surface characteristics of Non-combustible Magnesium Alloy
TANAKA Kouhei, SAEKI Yuto, HARADA Yasunori
The Proceedings of Mechanical Engineering Congress, Japan   2016   
Fatigue Property of Titanium Alloy by Microshot peening
SAEKI Yuto, HARADA Yasunori
The Proceedings of Mechanical Engineering Congress, Japan   2016   
<p>The effect of microshot peening on the surface hardness and fatigue strength of titanium alloy was investigated. Shot peening is a widely used surface treatment method for improving fatigue life. This process imparts compressive residual stress...
Functional Film Forming of Magnesium Alloy AZ31 by Shot Lining and Heating
MATSUMOTO Minoru, HARADA Yasunori, NUNOBIKI Masayuki
The Proceedings of Mechanical Engineering Congress, Japan   2016   
<p>Magnesium alloys are widely used in the automotive and aircraft fields. They have excellent physical and mechanical properties, such as low density and high strength-to-weight ratio. However, their poor corrosion resistance has been the main im...
Formability of high corrosion resistance titanium clad sheet by cold deep drawing
HATTORI Shuji, HARADA Yasunori
The Proceedings of Mechanical Engineering Congress, Japan   2016   
<p>Cladding is the bonding together of dissimilar metals. One of clad products is the titanium clad steel sheet. It is effective to cover with pure titanium sheet to improve the corrosion resistance of the steel sheet. Titanium clad steel sheets a...
406 Formability of Uneven Thickness Square Cup of High Corrosion Resistance Titanium Sheet by Cold Multistage Deep Drawing
UEYAMA Minoru, HATTORI Shuji, HARADA Yasunori
The Proceedings of the Materials and processing conference   2015   
405 Deep Drawability of Pure Titanium Sheet by using Resin Composite Die
NOSEDA Shogo, HATTORI Shuji, UEYAMA Minoru, HARADA Yasunori
The Proceedings of the Materials and processing conference   2015   
407 Wavefront Formation of Deep Drawn Cup by using Die with Concavo-convex Shape Shoulder
HARADA Yasunori
The Proceedings of the Materials and processing conference   2015   
408 Deep Drawability of Contactless Laminated Sheet
HATTORI Shuji, UEYAMA Minoru, HARADA Yasunori
The Proceedings of the Materials and processing conference   2015   
403 Surface Modification of Magnesium Alloy by Shot Lining and Heat Treatment
MATSUMOTO Minoru, HARADA Yasunori, NUNOBIKI Masayuki, TAKAHASHI Katsuhiko
The Proceedings of the Materials and processing conference   2015   
402 Peening Effects on Surface Hardness and Fatigue Strength of Pure Titanium
SAEKI Yuto, HARADA Yasunori, HATTORI Kanehisa, WATANABE Yoshihiro
The Proceedings of the Materials and processing conference   2015   
401 Effect of Microshot Peening on Surface Hardness and Fatigue Strength of Austenitic Stainless Steel
SHIBASAKI Kazuma, NAOI Souta, HARADA Yasunori
The Proceedings of the Materials and processing conference   2015   
GS0219-404 Influence of Shot Peening on Fatigue Crack Initiation Behaviour in Rolled Magnesium Alloy
OHTAGAKI Tomohisa, NAKATANI Masanori, HARADA Yasunori
The Proceedings of the Materials and Mechanics Conference   2015   
Fatigue crack initiation behavior of shot-peened magnesium alloy AZ31 was investigated. Fatigue tests were conducted using a rotary bending fatigue testing machine. The fatigue specimens were machined from two directions. Their loading directions ...
P011 Fatigue Damage Evaluation of Cu Thin Film on Hard Substrate by Electrical Resistance Measurement
IGI Yuki, NAKATANI Masanori, HARADA Yasunori
The Proceedings of Conference of Kansai Branch   2015   
P004 Influence of Shot Peening on Fatigue Properties of Magnesium Alloy AZ31
太田垣 朝久, 中谷 正憲, 原田 泰典
The Proceedings of Conference of Kansai Branch   2015   
404 Bending Strength of Shot-peened AZ31 Pipe
HARADA Yasunori, FUKUDA Izumi, YAMAMOTO Atsushi
The Proceedings of Conference of Kansai Branch   2015   
The effect of shot peening on the bending strength of an AZ31 magnesium alloy pipe was investigated. In the experiment, extruded pipes of 22 mm 0.D., 18 mm I.D., and 2 mm wall thickness were used. Shot peening treatments were applied to the surfac...
403 Surface and Fatigue Characteristics of Spring Steel by Microshot Peening
HARADA Yasunor, TANAKA Syusei, NAKATANI Masanori
The Proceedings of Conference of Kansai Branch   2015   
The effect of microshot peening on the surface characteristics and fatigue life of spring steel was investigated. In the experiment, the projective method of the microshot was of the compressed air type. The microshots were high-carbon cast steel ...
G0400101 Deep drawing workability of Ti/steel/Ti laminated sheet
HARADA Yasunori, HATTORI Syuji, UEYAMA Minoru
The Proceedings of Mechanical Engineering Congress, Japan   2015   
Aiming to enhance corrosion resistance of steel cup, the formability of pure titanium clad sheet by multistage deep drawing was investigated. Since pure titanium has excellent corrosion resistance, the use of the pure titanium sheet is very effect...
G0400401 Effect of hard microshot peening on fatigue strength of spring steel
HARADA Yasunori, TANAKA Syusei
The Proceedings of Mechanical Engineering Congress, Japan   2015   
In shot peening, the surface of the material receives a so-called peening effect where strong local deformation forms a work-hardened layer or causes compressive residual stress. More recently, a new type of microshot has been developed to enhance...
Wear and fretting fatigue behavior of titanium alloy coated with functionally graded TiN film by ion beam assisted deposition
NAKATANI Masanori, SHIMIZU Shota, HARADA Yasunori, UCHIDA Hitoshi
Transactions of the JSME (in Japanese)   2015   
The effect of functionally graded TiN coating on the wear and fretting fatigue behavior of titanium alloy was investigated. The two kinds of monolayer TiN coatings and three kinds of functionally graded TiN coatings were deposited on Ti-6Al-4V all...
Improvement of formability for multistage deep drawing of Ti- 15V-3Cr-3Sn-3Al alloy sheet
Yasunori Harada, Yutaro Maeda, Minoru Ueyama, Izumi Fukuda
Procedia Engineering   1 Jan 2014   
? 2014 The Authors. Published by Elsevier Ltd. The improvement of formability has been investigated in the multistage deep drawing of beta titanium alloy sheet. The beta titanium alloys have good cold workability in the metal forming. However, a s...
Effect of temperature on stretchability of anisotropic AZ31 magnesium alloy sheet
Izumi Fukuda, Yasunori Harada, Shunpei Ohtsuka
Procedia Engineering   1 Jan 2014   
? 2014 The Authors. Published by Elsevier Ltd. This paper deals with effect of temperature on stretchability of anisotropic AZ31(Mg-3%Al-1%Zn) magnesium alloy sheet. Results of stretching process test are compared with those of tensile test. The s...
Production of fe-al alloy coat on steel block by scanning laser beam
Masayuki Nunobiki, Yasunori Harada, Koichi Okuda
Advanced Materials Research   1 Jan 2014   
? (2014) Trans Tech Publications, Switzerland. Recently, the demand for long life to industrial products has risen. The high strength alloy coating on necessary part can decrease a manufacturing cost for life prolongation. This study proposes a la...
OS2136 Effect of Shot Peening on Fatigue Strength in Artificial Aged Magnesium Alloy AZ80
NAKATANI Masanori, OHTAGAKI Tomohisa, HARADA Yasunori
The Proceedings of the Materials and Mechanics Conference   2014   
The effect of shot peening on the fatigue strength in an artificial aged magnesium alloy AZ80 was investigated. The cast ball with an average diameter of 0.1mm was used for shot peening and the Almen intensity was set to 0.15 and 0.40mmN. The spec...
1121 Influence of Lamination Period on Mechanical Property of Free-standing Cu/Al_2O_3 Multilayer Thin Film
SANADA Yohei, NAKATANI Masanori, HARADA Yasunori
The Proceedings of Conference of Kansai Branch   2014   
1218 Fretting Fatigue Behavior of Titanium Alloy Coated With Functionally Graded TiN Film
SHIMIZU Shota, NAKATANI Masanori, HARADA Yasunori
The Proceedings of Conference of Kansai Branch   2014   
1219 Effect of Texture on Stress Corrosion Cracking in AZ80 Magnesium Alloy
ABE Hiroyuki, NAKATANI Masanori, HARADA Yasunori, UCHIDA Hitoshi
The Proceedings of Conference of Kansai Branch   2014   
G0410401 Surface Modification of Lightweight Metal by Shotlining Heat Treatment
HARADA Yasunori, NAGAO Atsushi, NUNOBIKI Masayuki, TAKAHASHI Katsuhiko
The Proceedings of Mechanical Engineering Congress, Japan   2014   
The formation of an Fe-Al intermetallic compound film on lightweight metals by shot lining and heat treatment was investigated. In the experiment, a centrifugal-type peening machine with an electrical heater was employed. The shot medium was high-...
G0410402 Fatigue Characteristics of Intermittent Shot-peened Spring Steel
HARADA Yasunori, TANAKA Syusei, ITO Manabu
The Proceedings of Mechanical Engineering Congress, Japan   2014   
The effect of an intermittent microshot peening on the surface characteristics and fatigue life of spring steel SUP9 was investigated. In the experiment, the projective method of the microshot was of the compressed air type. The microshot of 0.1mm...
Effect of shot peening on fatigue strength of high-toughness spring steel
Yasunori Harada, Hiroki Kosaka, Makoto Ishihara
Steel Research International   1 Dec 2013   
The shot peening process is a widely used surface treatment method for improving fatigue strength and anti-wear characteristics. The surface of the material receives a so-called peening effect where strong local deformation forms a work-hardened l...
Formation of Fe-Al intermetallic compound film on hot work tool steel by shot lining and heat treatment
Yasunori Harada, Makoto Ishida, Katsuhiko Takahashi, Yoshinori Sakamoto
8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8   1 Jan 2013   
The formation of an Fe-Al intermetallic compound film on hot work tool steel by shot lining and heat treatment was investigated. In the shot lining method, the metals are bonded with the dissimilar metal by applying plastic deformation and the pre...
Effect of shot peening on bending strength of AZ31 magnesium alloy pipe
Izumi Fukuda, Yasunori Harada
8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8   1 Jan 2013   
This paper deals with effect of shot peening on bending strength of cylindrical pipe of AZ31(Mg-3%Al-1%Zn) magnesium alloy. Specimen shape of the pipe is 240mm in gauge length and 330mm in total length, 22mm and 18mm in outer and inner diameters. ...
Formability of Mg-Li alloy sheet by square cup deep drawing
Yasunori Harada, Atsushi Yamamoto, Takayuki Goto, Eiji Nakamura
8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8   1 Jan 2013   
The Mg-Li alloy which is a beta type alloy was subjected to cold deep drawing, and the formability of Mg-Li alloy sheet was investigated by the square cup deep drawing process. This alloy is about 20 % lighter than a practical alloy. The square cu...
5PM1-D-4 Evaluation of mechanical property of free-standing Cu/Al_2O_3 multilayer thin film
SANADA Yohei, NAKATANI Masanori, HARADA Yasunori, UCHIDA Hitoshi
The Proceedings of the Symposium on Micro-Nano Science and Technology   2013   
The Mechanical property of free-standing Cu/Al_2O_3 multilayer thin film was investigated by a method of micro-bending test. The Cu and Al_2O_3 monolayer thin film and Cu/Al_2O_3 multilayer thin film were deposited on Si substrate by an electron b...
817 Fretting fatigue behavior of titanium alloy coated with functionally graded TiN film
SHIMIZU Shota, NAKATANI Masanori, HARADA Yasunori, UCHIDA Hitoshi
The Proceedings of the Materials and processing conference   2013   
428 Effect of Intermittent Shot Peening on Surface Hardness of Spring Steel
HARADA Yasunori
The Proceedings of the Materials and processing conference   2013   
429 Effect of shot peening on stress corrosion cracking in extruded magnesium alloy
ABE Hiroyuki, NAKATANI Masanori, HARADA Yasunori, UCHIDA Hitoshi
The Proceedings of the Materials and processing conference   2013   
427 Deep Drawability of Metal / Resin Laminated Sheets
HARADA Yasunori
The Proceedings of the Materials and processing conference   2013   
OS1203 Elastic property evaluation of free-standing Cu/Al_2O_3 multilayer thin film
SANADA Yohei, NAKATANI Masanori, HARADA Yasunori
The Proceedings of the Materials and Mechanics Conference   2013   
The Young's modulus of free-standing Cu/Al_2O_3 multilayer thin film was investigated by a method of micro-bending test. The Cu and Al_2O_3 monolayer and Cu/Al_2O_3 multilayer thin film were deposited on Si substrate by an electron beam deposition...
OS0922 Effects Specimen Cutting Direction on Stress Corrosion Cracking Susceptibility in Extruded Magnesium Alloy
ABE Hiroyuki, Nakatani Masanori, Harada Yasunori, UCHIDA Hitoshi
The Proceedings of the Materials and Mechanics Conference   2013   
The influence of specimen cutting direction on the susceptibility of stress corrosion cracking (SCC) in an extruded magnesium alloy AZ80 was investigated. The materials were extruded after the T4 or T6 heat treatment. The L- and R-specimens were p...
OS1518 Fretting fatigue behavior of Ti-6Al-4V coated with TiN by ion beam assisted deposition
Shimizu Shota, Nakatani Masanori, Harada Yasunori
The Proceedings of the Materials and Mechanics Conference   2013   
Fretting fatigue behavior and mechanical property of Ti-6Al-4V coated with titanium nitride (TiN) by ion beam assisted deposition were investigated. To investigate the influence of mixed layer on the fretting fatigue behavior, TiN were deposited o...
701 Surface Modification of High-speed Tool Steel by Shot Lining and Heat Treatment
HARADA Yasunori, ISHIDA Makoto, TAKAHASHI Katsuhiko
The Proceedings of Conference of Kansai Branch   2013   
501 Formability of Mg有i Alloy Sheet by Square Cup Deep Drawing
HARADA Yasunori, YAMAMOTO Atsushi, MATSUZAWA Kousuke, GOTO Takayuki, NAKAMURA Eiji
The Proceedings of Conference of Kansai Branch   2013   
G041012 Formation of Fe-Al intermetallic compound film on high-speed tool steel by shot peening
HARADA Yasunori, ISHIDA Makoto
The Proceedings of Mechanical Engineering Congress, Japan   2013   
In the shot peening process, metal foil can be bonded with the base metal by applying plastic deformation and the pressure. The formation of an Fe-Al intermetallic compound film on high-speed tool steel by shot peening and heat treatment was inves...
G041011 Effect of peening time on surface hardness of spring steel
HARADA Yasunori, KOSAKA Hiroki
The Proceedings of Mechanical Engineering Congress, Japan   2013   
The shot peening process is a widely used surface treatment method for improving fatigue strength and anti-wear characteristics. The surface of the material receives a so-called peening effect where strong local deformation forms a work-hardened l...
Cold Butt Joining of Copper Sheet with Dissimilar Sheet by Plastic Flow
原田 泰典, 布引 雅之
銅と銅合金 : 銅及び銅合金技術研究会誌 = Copper and copper alloy : journal of Japan Research Institute for Advanced Copper-Base Materials and Technologies   2013   
Formation of functional film of carbon steel by shot lining and heat treatment
原田 泰典, 三浦 裕二
機械材料・材料加工技術講演会 M&P   30 Nov 2012   
Deep drawability of square titanium cups
原田 泰典, 津田 高宏, 森 章司
機械材料・材料加工技術講演会 M&P   30 Nov 2012   
Effect of low-temperature heat treatment and subsequent re-shot peening on surface characteristics and fatigue limit of shot-peened carbon steel
HARADA Yasunori, INOUE Chikako
Journal of the Japan Society for Abrasive Technology   1 Oct 2012   
This paper explores the thermomechanical treatment consisting of shot peening and heating applied to carbon steel, and the effects on surface characteristics and fatigue characteristics. Shot peening was performed with an air-type machine using ca...
Effects of microshot peening on compressive residual stress of high-toughness spring steel
HARADA Yasunori, GOWA Daisuke
Journal of the Japan Society for Abrasive Technology   1 Oct 2012   
The effects of microshot peening on the compressive residual stress of spring steel were investigated. The compressed air method was used for projection of microshots consisting of high-carbon cast steel and cemented carbide 0.1 mm in diameter. Th...
Formability of magnesium-lithium alloy sheet by multi-stage deep drawing
Yasunori Harada, Atsushi Yamamoto, Takayuki Goto, Eiji Nakamura
Materials Science Forum   30 Jan 2012   
The formability of the magnesium-lithium alloy was examined by multi-stage deep drawing. Long cups of magnesium alloy were formed at ambient temperatures by multi-stage deep drawing processes. In multi-stage deep drawing, the magnesium-lithium all...
Formation of Fe-Al intermetallic compound film on carbon steel by shot peening and heat treatment
Yasunori Harada, Yuji Miura, Katsuhiko Takahashi
Advanced Materials Research   4 Jan 2012   
The formation of an Fe-Al intermetallic compound film on carbon steel by shot lining and heat treatment was investigated. In the experiment, a centrifugal-type peening machine with an electrical heater was employed. The shot medium was high-carbon...
Solitary fibrous tumor of the urinary bladder: A case report
Cong Wang, Naoki Miyago, Naoki Miyago, Yasunori Harada, Yutaka Yasunaga, Toshitsugu Oka
Japanese Journal of Urology   1 Jan 2012   
Solitary fibrous tumor (SFT) is one of the mesenchymal tumor usually occurs in the pleura. Extrapleural occurrence of SFT is uncommon. We herein report an extremely rare case of 72-year old man with SFT originated in the urinary bladder. The tumor...
Validation of 2009 TNM classification based on a prognostic analysis of 350 patients treated for renal cell carcinoma
Yutaka Yasunaga, Kazuhiko Komori, Yasunori Harada, Akira Tohda, Toshitsugu Oka
Japanese Journal of Urology   1 Jan 2012   
(Purpose) To validate 2009 TNM classification (7thedition) of renal cell carcinoma (RCC), we reevaluated our RCC database depends on 6thand 7thTNM staging and analyzed a prognostic divergence between subgroups. (Methods) A study population of 350 ...
301 Effects of shot-peening time on surface hardness of spring steel
KOSAKA Hiroki, HARADA Yasunori
The Proceedings of the Materials and processing conference   2012   
302 Formation of functional film of alloy steel by shot lining and heat treatment
ISHIDA Makoto, HARADA Yasunori
The Proceedings of the Materials and processing conference   2012   
303 Formation of functional film of carbon steel by shot lining and heat treatment
HARADA Yasunori, MIURA Yuji
The Proceedings of the Materials and processing conference   2012   
304 Deep drawability of square titanium cups
HARADA Yasunori, TSUDA Takahiro, MORI Syoji
The Proceedings of the Materials and processing conference   2012   
923 Formability of Magnesium-Lithium Alloy Sheet by Cold Deep Drawing
HARADA Yasunori, GOTO Takayuki, YAMAMOTO Atsushi, NAKAMURA Eiji
The Proceedings of Conference of Kansai Branch   2012   
813 Improvement of Fatigue Strength of Carbon Steel by Shot Peening and Heat Treatment
HARADA Yasunori, MIURA Yuji
The Proceedings of Conference of Kansai Branch   2012   
Forming of pure titanium sheets by multi-stage deep drawing process
Y. Harada, T. Tsuda, I. Fukuda
Special Edition: 10th International Conference on Technology of Plasticity, ICTP 2011   1 Dec 2011   
The formability in multi-stage deep drawing process of pure titanium sheet was Investigated. Pure titanium has very good ductility In cold forming. The normal anisotropy of pure titanium Is very high, about 5 or 6 of the r-value. Therefore, the pr...
Cold joining of metal sheets by shot peening
Y. Harada, M. Nunobiki
Proceedings of the 10th International Conference on Technology of Plasticity, ICTP 2011   1 Dec 2011   
The cold joining of thin sheets using a shot peening process was investigated. In the joined section, the edge shape of two sheets is a concavo-convex. In this method, the convex edges of the sheet are overlapped the other sheet. When the connecti...
Effect of heating and subsequent re-shot peening on surface characteristics of shot-peened carbon steel
Yasunori Harada
Advanced Materials Research   26 Sep 2011   
The shot peening process is one of the surface treatments. In this process the peening effects are characterized by the fact that the surface layer undergoes large plastic deformation due to the collision of shots. The effects are greatly influenc...
Effect of microshot peening on residual stress of high-toughness spring steel
Yasunori Harada, Daisuke Gowa, Toshiya Tsuji, Yuji Kobayashi
Advanced Materials Research   26 Sep 2011   
In general, shot peening is a surface treatment that improves the performance of engineering components, since application of surface compressive stresses reduces the tensile component of stress. In the shot peening process, the medium consists of...
Effect of shot peening on surface chracteristics of carbon steel with different heat treatments
Yasunori Harada, Ryota Yakura
AIP Conference Proceedings   1 Dec 2010   
The shot peening process is one of the surface treatments. The peening effects are characterized by the fact that the surface layer undergoes large plastic deformation due to the collision of shots. This action imparts compressive residual stress ...
Joining of thin metal sheets by shot peening
Yasunori Harada
AIP Conference Proceedings   1 Dec 2010   
In shot peening the substrate undergoes large plastic deformation near the surface due to the hit with shots. The plastic flow areas formed by cold working may form the surface layer. Authors have recently proposed new joining methods using shot p...
302 Effect of Microshot Peening on Fatigue Property of High-Toughness Spring Steel
HARADA Yasunori, KOBAYASHI Yuji, TSUJI Toshiya, GOWA Daisuke
Materials and processing conference   27 Nov 2010   
Shot peening is a surface treatment that improves the performance of engineering components. In conventional shot peening, the medium consists of small spheres, which are usually made of high-carbon cast steel; the diameter of the spheres is in th...
315 Cold Multi-Stage Deep Drawing of Ultra-Lightweight Magnesium Alloy Sheets
HARADA Yasunori, YAMAMOTO Atsushi, GOTO Takayuki, NAKAMURA Eiji
Materials and processing conference   27 Nov 2010   
Long cups of magnesium alloy were formed at ambient temperatures by multi-stage deep drawing processes. In general, typical uses of magnesium alloys are for automobile and aircraft components, portable device, luggage, and care goods. However, mag...
Joining and Complex
岡井 紀彦, 春日 幸生, 村上 碩哉, 原田 泰典, 杉山 澄雄
塑性と加工   25 Aug 2010   
Effect of temperature on plastic buckling strength of shot peened pipe of magnesium alloys
Izumi Fukuda, Yasunori Harada, Yuichi Tanaka
Materials Science Forum   18 Aug 2010   
This paper deals with the effect of temperature on plastic buckling strength of cylindrical pipe of some magnesium alloys subjected to shot peening process. Workpieces are three cylindrical pipes of AZ31, AZ61 and AZ80 magnesium alloys. The shape ...
Cold joining of dissimilar metal sheets by shot peening
Yasunori Harada
Materials Science Forum   17 Aug 2010   
The cold joining of dissimilar metal sheets using a shot peening process was investigated. In shot peening the substrate undergoes large plastic deformation near the surface due to the hit with shots. Consequently, plastic flow areas formed by col...
Effect of microshot peening on surface characteristics of spring steel
Yasunori Harada, Koji Yoshida
Materials Science Forum   17 Aug 2010   
Shot peening is a surface treatment that improves the performance of engineering components. In conventional shot peening, the medium consists of small spheres, which are usually made of high-carbon cast steel; the diameter of the spheres is in th...
Formability of pure titanium long-cup by multi-stage deep drawing
Yasunori Harada, Toshiyuki Araki, Takahiro Tsuda
Materials Science Forum   17 Aug 2010   
The pure titanium long-cups were formed by preventing the seizing in cold multi-stage deep drawing processes. For the prevention, pure titanium sheets were treated by heating oxide coating. The coating is very effective in preventing the occurrenc...
Shot lining of magnesium alloy with hard powders
Y. Harada, I. Fukuda
Transactions of Nonferrous Metals Society of China (English Edition)   1 Jul 2010   
To improve the surface properties, lining of magnesium alloys with hard powders by shot peening was carried out in order. The hard powders were tried to bond to the workpiece surface due to the collision of many shots. In order to fix the hard pow...
310 Cold Joining of Dissimilar Metal Sheets by Shot Peening
HARADA Yasunori
The Proceedings of Conference of Kansai Branch   16 Mar 2010   
312 Effect of Microshot Peening on Surface Characteristics of Spring Steel
HARADA Yasunori, YOSHIDA Koji, FUKAURA Kenzo, YAMAGUCHI Naohiko, TSUJI Toshiya, KOBAYASHI Yuji
The Proceedings of Conference of Kansai Branch   16 Mar 2010   
313 Formability of Pure Titanium Fine-cup by Multi-stage Deep Drawing
HARADA Yasunori, ARAKI Toshiyuki, TSUDA Takahiro, MORI Shoji
The Proceedings of Conference of Kansai Branch   16 Mar 2010   
Effects of Microshot Peening on Surface Characteristics and Fatigue Strength of Cold Tool Steel
HARADA Yasunori, AOKI Toshinori
Journal of the Japan Society for Technology of Plasticity   25 Feb 2010   
Formation of Fe-Al Intermetallic Compound Film on Carbon Steel by Shot Lining and Heat Treatment
HARADA Yasunori, SHIMOIRISA Shinya, TAKAHASHI Katsuhiko
Journal of the Japan Society for Technology of Plasticity   25 Feb 2010   
Butt joining of high strength steel sheet and dissimilar metal sheet by shot peening
Yasunori Harada, Takeshi Uemori
Materials Science Forum   9 Feb 2010   
In the shot peening process, the substrate undergoes large plastic deformation near the surface due to the hit with many shots. A large plastic deformation characterized by a shear droop occurs at the edge of the substrate. When the dissimilar she...
Needle applicator displacement during high-dose-rate interstitial brachytherapy for prostate cancer
Ken Yoshida, Hideya Yamazaki, Takayuki Nose, Hiroya Shiomi, Mineo Yoshida, Mari Mikami, Tadashi Takenaka, Tadayuki Kotsuma, Eiichi Tanaka, Keiko Kuriyama, Yasunori Harada, Akira Tohda, Yutaka Yasunaga, Toshitsugu Oka
Brachytherapy   1 Jan 2010   
Purpose: To introduce an effective ambulatory technique in high-dose-rate interstitial brachytherapy (HDR-ISBT) for prostate cancer, we investigated the displacement distance using our novel calculation method. Methods and Materials: Sixty-four pa...
Effects of Microshot Peening on Surface Characteristics<br>and Fatigue Strength of Cold Tool Steel
原田 泰典, 青木 俊憲
Journal of the Japan Society for Technology of Plasticity   2010   
Shot peening is a surface treatment that improves the performance of engineering components. In conventional shot peening, the medium consists of small spheres, which are usually made of high-carbon cast steel; the diameter of the spheres is in th...
Development of multi-stage deep drawing of titanium-clad cup
原田泰典
Titanium Japan   2010   
Effects of Warm Double Peening on Surface Layer Characteristics of High Speed Steel
HARADA Yasunori, KOHAMADA Suguru
Journal of the Japan Society for Technology of Plasticity   2010   
OS0717 Fatigue Properties of Extruded Magnesium Alloys
MORITA Shigeki, NAKAHARA Masafumi, OHNO Nobuyoshi, KAWAKAMI Yuji, ENJOJI Takashi, HARADA Yasunori
The Proceedings of the Materials and Mechanics Conference   24 Jul 2009   
Rotating bending and axial tension-compression (R=-1) fatigue tests were carried out on commercially extruded magnesium alloys (AZ10, AZ31, AZ61 and AZ80). Tensile strength and tensile 0.2% proof stress increased with increasing Al content. Compre...
Effect of Nitrogen and Deformation Twinning on Tensile Properties of Austenitic Stainless Steels Fabricated by Metal Injection Molding
AOYAMA Yosuke, KURODA Yoshikazu, TAKAHASHI Teruo, TSUCHIDA Noriyuki, HARADA Yasunori, FUKAURA Kenzo
Journal of the Japan Society of Powder and Powder Metallurgy   1 Mar 2009   
High nitrogen stainless steel (Fe-17Cr-12Mn-3Mo-1N) fabricated by metal injection molding (MIM) method has prominent strength and ductility. However, the tensile properties are unexplainable only by the influence of nitrogen solid solution strengt...
Mechanical properties of Ni-free high-nitrogen austenitic stainless steel made by metal injection molding with nitrogen absorption method
Yosuke Aoyama, Midori Komada, Yoshikazu Kuroda, Teruo Takahashi, Noriyuki Tsuchida, Yasunori Harada, Kenzo Fukaura
Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy   1 Mar 2009   
Microstructure and mechanical properties of high nitrogen steels containing l7Cr-l2Mn-3Mo produced by means of metal injection moulding and nitrogen absorption methods were examined. The compacts were sintered at 1300°C, then furnace-cooled to 120...

Research Grants & Projects

 
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(C))
Project Year: 2004 - 2005    Investigator(s): Yasunori HARADA
In general, metals are usually hardened by plastic deformation under forces applied by various tools. Deformation processes are known as forging, rolling and extrusion. As the degree of plastic deformation increases, the strength of a structural o...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(B))
Project Year: 2003 - 2004    Investigator(s): Ken-ichiro MORI
The titanium alloy has not only excellent corrosion resistance but also high strength. A β-type titanium alloy sheet is formed by cold deep drawing. Although titanium alloys are generally worked under an elevated temperature, the β-type titanium a...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(C))
Project Year: 2001 - 2003    Investigator(s): Yasunori HARADA
Lining magnesium alloys with hard powder by shot peening was carried out. The hard materials are bonded to the surface of the magnesium workpieces due to the collision of small steel balls. To fix the hard powder to the surface of the workpiece, t...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(C))
Project Year: 2001 - 2002    Investigator(s): Ken-ichiro MORI
A micro-macro method for simulating a sintering process of ceramic powder compacts based on the Monte Carlo and finite element methods is proposed. Macroscopic non-uniform shrinkage during the sintering is calculated by the viscoplastic finite ele...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(B))
Project Year: 2001 - 2002    Investigator(s): Ken-ichiro MORI
Long pure titanium cups were formed by multi-stage cold deep drawing using commercial colored titanium sheets for preventing seizure. The titanium sheets have sufficient ductility and high r-value for the deep drawing, whereas the seizure tends to...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(C))
Project Year: 1998 - 1999    Investigator(s): Ken-ichiro MORI
An approach for simulating microscopic densification behavior of powder particles in compaction using a finite element method is proposed. In this method, the contacts between powder particles during the compaction are detected, and plastic deform...
Plastic Workability of Chromium and Chromium alloys
Joining of Foil on the Material Surface by Shot-peening Process