SASAHARA Hiroyuki

J-GLOBAL         Last updated: Nov 21, 2018 at 05:49
 
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Name
SASAHARA Hiroyuki
E-mail
sasaharacc.tuat.ac.jp
URL
http://www.tuat.ac.jp/~saslab/
Affiliation
Tokyo University of Agriculture and Technology
Section
Institute of Engineering, Division of Advanced Mechanical Systems Engineering
Job title
Professor
Degree
Dr.Erg.(Tokyo Institute of Technology)
Other affiliation
Tokyo University of Agriculture and TechnologyTokyo University of Agriculture and TechnologyTokyo University of Agriculture and TechnologyTokyo University of Agriculture and Technology

Research Areas

 
 

Academic & Professional Experience

 
Apr 1988
 - 
Apr 1996
東京工業大学工学部助手, -
 
May 1996
 - 
Mar 1998
東京農工大学工学部講師, -
 
Apr 1998
 - 
Mar 2004
東京農工大学工学部助教授, -
 
Apr 2000
 - 
Mar 2001
米国ノースカロライナ州ノースカロライナ大学シャーロット校客員研究員, -
 
Apr 2004
 - 
Sep 2009
東京農工大学大学院共生科学研究部先端生物システム学部門 助教授(准教授) (2006・4より共生科学技術研究院), -
 

Education

 
 
 - 
1988
機械物理工学科, Faculty of Engineering, Tokyo Institute of Technology
 

Awards & Honors

 
Jun 2017
財団法人工作機械技術振興財団 第38次 工作機械技術振興賞(奨励賞)
 
Apr 2017
2016年度日本機械学会教育賞「スターリングエンジンを題材としたものづくり教育」
 
Jun 2016
一般社団法人型技術協会 第30回型技術協会奨励賞
 
Jun 2016
財団法人工作機械技術振興財団 第37次 工作機械技術振興賞(奨励賞)
 
Jun 2016
財団法人工作機械技術振興財団 第37次 工作機械技術振興賞・論文賞
 
Mar 2016
精密工学会 高城賞「薄板加工におけるびびり振動抑制用動吸振器の設計方法に関する研究」
 
Nov 2014
Excellent Poster Award, The 16th International Machine Tool Engineers’ Conference, “Additive Manufacturing with Direct Metal Lamination by Using Arc Discharge”
 
Jun 2011
曲線切断を可能とする丸のこ切削, 財団法人 工作機械技術振興財団 第32次 工作機械技術振興賞(奨励賞), 財団法人 工作機械技術振興財団
Winner: 山田洋平,笹原弘之
 
Jun 2011
パッチ分割切削法による二重らせん工具経路を用いた周期的凹凸表面模様形成, 第21回型技術協会賞奨励賞, 型技術協会
Winner: 黒田耕介,笹原弘之,松田礼
 
Nov 2010
駆動形ロータリ切削におけるMQLが切削点温度へ与える影響, 日本機械学会 生産加工工作機械部門 優秀講演論文賞
Winner: 佐竹健太郎,山本博雅,笹原弘之,成田徹,堤正臣,村木俊之
 
Nov 2008
Excellent Poster Award, The 13th International Machine Tool Engineers' Conference “Rotary Cutting on Multi-tasking Machine”, Japan Machine Tool Builders' Association, IMEC Organizing Comittee
Winner: Hiroyuki Sasahara, Hiromasa Yamamoto, Yoshihiro Yamada
 
Jun 2008
立体形状カムの三次元切削における送り速度制御と加工面精度, 財団法人工作機械技術振興財団 第29次 工作機械技術振興賞(奨励賞), 財団法人工作機械技術振興財団
Winner: 笹原弘之,下城総平,五十嵐大輔
 
2006
生物システム応用科学府(BASE)平成18年度ベストティーチャー賞, 生物システム応用科学府
 
2006
Best Paper Award 2006, ICPMT 2006(Matsue), "Effect of Machining Strategy on Thermal Expansion in Fine Boring Process"
 
2005
財団法人工作機械技術振興財団 第26次 工作機械技術振興賞(奨励賞)
 
2004
JIMTOF2004 工作機械のニューテクノロジーポスター展 優秀ポスター賞
 
2003
2002年度精密工学会春季大会学術講演会ベストプレゼンテーション賞
 
2001
Outstanding Poster Award, 10th ICPE (Yokohama), "Analysis of Tool Temperature in High-Speed Milling"
 
1997
財団法人工作機械技術振興財団 第18次 工作機械技術振興賞(奨励賞)
 
1995
財団法人工作機械技術振興財団 第16次 工作機械技術振興賞(奨励賞)
 

Published Papers

 
Effect of the Type of Grinding Wheel on the Surface Characteristic of Titanium Alloy with Internal Coolant Supply
N.Nakatsuka, S.Toyokawa, A.Kusakabe, S.Nakatsukasa, H.Sasahara
Proceedings of 2018 International Conference on Machining, Materials and Mechanical Technologies (IC3MT)   Paper ID 2504   Sep 2018   [Refereed]
Surface Characteristic on Curved Grinding of Titanium Alloy with Coolant Supplying from Inner Side of Grinding Wheel
S.Toyokawa, N.Nakatsuka, A.Kusakabe, H.Sasahara
Proceedings of 2018 International Conference on Machining, Materials and Mechanical Technologies (IC3MT)   Paper ID 2329   Sep 2018   [Refereed]
Precise fabrication and cutting of wall structure to repair the thin end of plate using interlayer temperature monitoring on wire and arc-based additive manufacturing
T.Tsurumaki, S. Tsukamoto, H.Chibahara, H.Sasahara
Proc. ISFA2018   #22   Jul 2018   [Refereed]
Effect of tool posture for tool wear on turn-milling
S.Shichiri, K.Utsumi, H.Sasahara
Proc. ISFA2018   #18   Jul 2018   [Refereed]
A.Miyake, H.Sasahara, A.Kitakaze, S.Katoh, M.Muramatsu, K.Noguchi, K.Sannomiya, T.Nakaya,
Precision Engineering   53 38-45   Jul 2018   [Refereed]
Optimization of grinding conditions for small diameter hole to achieve higher performance of linear solenoid
K.Matsubara, T.Kimura, H. Sasahara
Proc. 18th Int. Conf. EUSPEN   327-328   Jun 2018   [Refereed]
Study on effect of lead and tilt angle of tool on cutting force and tool wear in turn milling
K.Utsumi, S.Shichiri, S.Kayama, H.Sasahara
Proc. 18th Int. Conf. EUSPEN   355-356   Jun 2018   [Refereed]
Fabrication of Lattice Structures by Wire and Arc-based Additive Manufacturing
T.Abe, H.Sasahara
Proc. 18th Int. Conf. EUSPEN   279-280   Jun 2018   [Refereed]
砥石表面の特徴的な温度変動に基づく研削加工時の異常発生のインプロセス判別
福原義也,鈴木修平,笹原弘之
砥粒加工学会誌   62(4) 204-210   Apr 2018   [Refereed]
H.Sasahara, Y.Sukegawa, Y.Yamada
Precision Engineering   52 291-299   Apr 2018   [Refereed]
Y. Fukuhara, S. Suzuki, H.Sasahara
Precision Engineering   51 433-439   Jan 2018   [Refereed]
Okamura, Kiyoshi; Sasahara, Hiroyuki
JOURNAL OF ADVANCED MECHANICAL DESIGN SYSTEMS AND MANUFACTURING   11(3)    2017   [Refereed]
Low-frequency vibration drilling can suppress the drilling temperature and extend tool life. In low-frequency vibration drilling, there are drilling times and non-drilling times in each vibration cycle. A past study clarified that the temperature ...
Study on the residual stress on grinding of titanium alloy with coolant supplied from inner side of grinding wheel
S.Toyokawa, N.Nakatsuka, A.Kusakabe, H.Sasahara
Advances in Abrasive Technology XX (Proc. ISAAT2017)   972-977   Dec 2017   [Refereed]
Study on High Efficiency of Impeller Machining with Taper Ball End Mill
T.Kimura, H.Sasahara, K.Matsubara, Z.Oda
Advances in Abrasive Technology XX (Proc. ISAAT2017)   846-851   Dec 2017   [Refereed]
Study on the residual stress on grinding of titanium alloy with coolant supplied from inner side of grinding wheel
S.Toyokawa, N.Nakatsuka, A.Kusakabe, H.Sasahara
Advances in Abrasive Technology XX (Proc. ISAAT2017)   972-977   Dec 2017   [Refereed]
Study on High Efficiency of Impeller Machining with Taper Ball End Mill
T.Kimura, H.Sasahara, K.Matsubara, Z.Oda
Advances in Abrasive Technology XX (Proc. ISAAT2017)   846-851   Dec 2017   [Refereed]
Minimization of Thermal Distortion on Wire and Arc-based Additive Manufacturing on the Shaft
T.Yoshioka, H. Sasahara
Proc. 9th Int. Conf. on LEM21   USB C22   Nov 2017   [Refereed]
Precise Fabrication of Wall Structure onto Thin Plate End with Interlayer Temperature Monitoring on Wire and Arc-based Additive Manufacturing
T.Tsurumaki,H.Chibahara, S.Tsukamoto, H.Sasahara
Proc. 9th Int. Conf. on LEM21   USB C20   Nov 2017   [Refereed]
Development of the shell structure building simulator with two-dimensional bead model for wire and arc-based additive manufacturing
T.Abe, H.Sasahara
Proc. 9th Int. Conf. on LEM21   USB C19   Nov 2017   [Refereed]
An Evaluation Method for the Speed and Accuracy, of CNC Machine Tool
T.Otsuki, H.Sasahara, R.Sato
Proc. 9th Int. Conf. on LEM21   USB B04   Nov 2017   [Refereed]
Three Dimensional Finite Element Modeling when Drilling of Ti-6Al-4V
E. A. Rahim, H. Sasahara
International Journal of Robotics and Mechatronics   4(1) 33-38   Nov 2017   [Refereed]
Minimization of Thermal Distortion on Wire and Arc-based Additive Manufacturing on the Shaft
T.Yoshioka, H. Sasahara
Proc. 9th Int. Conf. on LEM21   C22   Nov 2017   [Refereed]
Precise Fabrication of Wall Structure onto Thin Plate End with Interlayer Temperature Monitoring on Wire and Arc-based Additive Manufacturing
T.Tsurumaki,H.Chibahara, S.Tsukamoto, H.Sasahara
Proc. 9th Int. Conf. on LEM21   C20   Nov 2017   [Refereed]
Development of the shell structure building simulator with two-dimensional bead model for wire and arc-based additive manufacturing
T.Abe, H.Sasahara
Proc. 9th Int. Conf. on LEM21   C19   Nov 2017   [Refereed]
An Evaluation Method for the Speed and Accuracy, of CNC Machine Tool
T.Otsuki, H.Sasahara, R.Sato
Proc. 9th Int. Conf. on LEM21   B04   Nov 2017   [Refereed]
Otsuki, Toshiaki; Sasahara, Hiroyuki; Sato, Ryuta
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY   50 433-439   Oct 2017   [Refereed]
The method of evaluating two-dimensional contouring error between the reference trajectory and the trajectory measured with a cross-grid encoder and magnifying the error is widely used. However, this method has a problem in that the inner cornerin...
Talib, N.; Sasahara, H.; Rahim, E. A.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY   92(43104) 371-391   Sep 2017   [Refereed]
Crude jatropha oil (CJO) has been acknowledged as an environmentally benign metalworking fluid (MWF) in the machining industry. However, one drawback found in CJO is that it has poor thermal-oxidative stability that leads to poor lubrication behav...
Chip Adhesion and Tool Wear in Driven Rotary Cutting
H.Sasahara, M.Goto, W.Takahashi, H. Yamamoto, T.Muraki
Proc. ASME 2017 12th Int. Manuf. Sci. and Eng. Conf. MSEC2017   MSEC2017-2958   Jun 2017   [Refereed]
Chip Adhesion and Tool Wear in Driven Rotary Cutting
H.Sasahara, M.Goto, W.Takahashi, H. Yamamoto, T.Muraki,
Proc. ASME 2017 12th Int. Manuf. Sci. and Eng. Conf. MSEC2017   MSEC2017-2958   Jun 2017   [Refereed]
Sasahara, Hiroyuki; Satake, Kentarou; Takahashi, Wataru; Goto, Masato; Yamamoto, Hiromasa
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY   48 158-163   Apr 2017   [Refereed]
We examined cutting point temperature and tool wear in driven rotary cutting. Cutting tests under dry and minimum-quantity-lubrication (MQL) conditions of stainless steel (SUS304) were carried out. Cutting point temperature was measured using a to...
Performance of palm oil as a biobased machining lubricant when drilling inconel 718
E. A. Rahim, H. Sasahara
MATEC Web of Conferences   101    Apr 2017   [Refereed]
H. Sasahara, K. Satake, W. Takahashi, M. Goto and H. Yamamoto
Precision Engineering   48 158–163   Apr 2017   [Refereed]
Development of a Cooperative System with Wire and Arc-based Additive Manufacturing and Machining
H. Nagamatsu, Y. Mitsutake, T. Hamamoto and H. Sasahara
Proc.ICPE2016   B105-8223   Nov 2016   [Refereed]
Mechanical Property of the Fabricated Object Using Nickel-based Alloy in Wire and Arc-based Additive Manufacturing
S. Takizawa, Y. Nakano, S. Tsukamoto and H. Sasahara
Proc.ICPE2016   B104-8222.   Nov 2016   [Refereed]
Development of a Cooperative System with Wire and Arc-based Additive Manufacturing and Machining
H. Nagamatsu, Y. Mitsutake, T. Hamamoto and H. Sasahara
Proc.ICPE2016   B105-8223   Nov 2016   [Refereed]
Effect of Tip Shape of Burnishing Tool on processed surface of S45C on Frictional Stir Burnishing,
Y. Hiratsuka, H. Sasahara and Y. Takada
Proc. 2nd IC3MT   #81   Oct 2016   [Refereed]
Characteristics of machined surface and tool failure on CFRP cutting by circular saw
Y. Sukegawa, H. Sasahara and Y. Yamada
Proc. 2nd IC3MT   #80   Oct 2016   [Refereed]
Effect of grinding wheel specifications on the grinding wheel surface temperature and the surface roughness for coolant supplying system from inter side of grinding wheel
Y. Fukuhara, S. Suzuki and H. Sasahara
Proc. 2nd IC3MT   #27   Oct 2016   [Refereed]
High Quality Machining of the CFRP with Hyper Grinding
R.Koyasu, K. Suzuki and H.Sasahara
Proc. IC3MT 2016   #84   Oct 2016   [Refereed]
A newly developed woven metal wire tool with electrodeposited diamond grains and its application for CFRP core drilling
R. Koyasu, K. Suzuki1, Y. Ito, Y. Fukuhara, Y. Takeda, M. Matsubara, H. Sasahara, Y. Yao and K. Nomura1
Proc. 19th ISAAT   118-123   Oct 2016   [Refereed]
Effect of axial vibration on peripheral finishing of CFRP using woven metal wire tool with electrodeposited diamond grains
K. Nomura, N. Takeuchi, Y. Ito, Y. Takeda and H. Sasahara
Proc. 19th ISAAT   113-117   Oct 2016   [Refereed]
T. Nakamura, H. Sasahara, S. Kusunose and I. Nishizaki
Materials Science Forum   656-657 440-445   Oct 2016   [Refereed]
A. Miyake, H. Sasahara, A. Kitakaze, S. Katoh, M. Muramatsu, K. Noguchi, K. Sannomiya, T. Nakaya
Proc. ISFA2016   -    Aug 2016   [Refereed]
Performance of small diameter grinding wheel with coolant supplying from its inner side
K.Matsubara, J.Tsuchimura, H.Sasahara
Proc. 16th Int. Conf. EUSPEN   (2) P4.17   Jun 2016   [Refereed]
T. Abe and H. Sasahara
Precision Engineering   45(4) 387–395   Mar 2016   [Refereed]
岡村清志,笹原弘之
砥粒加工学会誌   60(2) 320-325   Feb 2016   [Refereed]
Kai Xu and H. Sasahara
International Journal of Automation Technology   10(1) 23-29   Jan 2016   [Refereed]
はじめての機械加工―スターリングエンジンを題材としたモノづくり教育―
笹原弘之,伊藤博信
日本機械学会誌   118(1165) 730-733   Dec 2015
Norfariza Wahab, Yumi Inatsugu, Satoshi Kubota, Soo Young Kim, Hiroyuki Sasahara
International Journal of Automation Technology   9(6) 775-781   Nov 2015   [Refereed]
アーク溶接技術を応用した金属3Dプリンタの現状と展望(連載3Dプリンタが拓くモノづくりの可能性をさぐる,第4回)
笹原弘之
機械技術   63(10) 78-83   Oct 2015
The performance of modified Jatropha oil as a sustainable metalworking fluid when high speed rotary machining
Norfazillah Talib, M. Goto, H. Sasahara, Erween Abd. Rahim
Proc. 8th Int. Conf. on LEM21   CD-ROM B33   Oct 2015   [Refereed]
Effect of cutting fluid on chip adhesion and tool wear in driven rotary cutting
M. Goto, W. Takahashi, H. Yamamoto, H. Sasahara
Proc. 8th Int. Conf. on LEM21   CD-ROM B32   Oct 2015   [Refereed]
Cutting edge temperature prediction on low-frequency vibration drilling considering real cutting time
K. Okamura, H. Sasahara
Proc. 8th Int. Conf. on LEM21   CD-ROM B30   Oct 2015   [Refereed]
Strength of laminated object of magnesium alloy fabricated by direct metal lamination using arc discharge
H. Takagi, T. Abe, H.Sannomiya, S. Nishiyama, S. Ohta, K. Nakamura, H. Sasahara
Proc. 8th Int. Conf. on LEM21   CD-ROM B13   Oct 2015   [Refereed]
Development of in-process monitoring system for grinding wheel surface temperature and grinding state
Y. Fukuhara, S. Suzuki and H. Sasahara
Advances Materials Research   806 624-629   Oct 2015   [Refereed]
Improvement of surface roughness with micro-axial vibration of spindle by pressure pulsation of grinding fluid supplied through inside of wheel
K. Nomura, N. Takeuchi, A. Kusakabe, M. Chino and H. Sasahara
Advances Materials Research   806 673-677   Oct 2015   [Refereed]
高田正義,笹原弘之
日本機械学会誌論文集   81(830) No.15-00350   Sep 2015   [Refereed]
Study on the Finish Cutting of the Hardened Layer Made by Frictional Stir Burnishing
H. Sasahara, Y. Hiratsuka, Y. Yamada, Y. Takada and T. Nakamura
Proc. The 6th Int. Conf. of Asian Society for Precision Engineering and Nanotechnology   Paper No.136   Aug 2015   [Refereed]
機械工学年鑑 16・2 切削加工
笹原弘之
日本機械学会誌   118(1161) 504-505   Aug 2015   [Refereed]
Hisataka Takagi, Takeyuki Abe, Peng Cui and Hiroyuki Sasahara
Key Engineering Materials   656-657 440-445   Jul 2015   [Refereed]
Masato Goto, Wataru Takahashi, Wataru Sasaki, Takeshi Toujyo, Yuji Takagi Hiromasa Yamamoto and Hiroyuki Sasahara
Key Engineering Materials   656-657 208-213   Jul 2015   [Refereed]
Novel Machining Mthod to Fabricate a Large Size Turbine Disks with Mandrel Type Fixturing Jig and EDM on a Multi-tasking Machine
Hiroyuki Sasahara, Kazuya Mizobe, Susumu Hara, Norio Kushihashi and Shigemi Shindo
Proc. 15th Int. Conf. EUSPEN   (2) 377-378   Jun 2015   [Refereed]
Filippo Montevecchi, Niccolò Grossi, Hisataka Takagi, Antonio Scippa, Hiroyuki Sasahara, Gianni Campatelli
Procedia CIRP, 7th HPC 2016   476 – 479   May 2015   [Refereed]
Norfariza Wahab, Hiroyuki Sasahara, Shinnosuke Baba, Yuta Hiratsuka, Takashi Nakamura
International Journal of Modeling and Optimization   5(2) 140-144   Apr 2015   [Refereed]
Norfariza Wahab, Hiroyuki Sasahara
Advanced Materials Research   1101 402-405   Apr 2015   [Refereed]
内海幸治,河野一平,小野塚英明,加藤吐夢,笹原弘之
精密工学会誌   81(2) 187-192   Feb 2015   [Refereed]
Takeyuki Abe and Hiroyuki Sasahara
International Journal of Precision Engineering and Manufacturing   16(1) 171-176   Jan 2015   [Refereed]
曲線切断丸のこを用いたCFRPのトリム加工
山田洋平,笹原弘之
機械技術   62(13) 37-39   Dec 2014
Hiroyuki Sasahara, Tomoko Kikuma, Rei Koyasu, Yasuhiro Yao
Precision Engineering   38(4) 775-782   Oct 2014   [Refereed]
Effect of cutting conditions on tool wear in driven rotary cutting of maraging steel
Masato Goto, Wataru Takahashi, Wataru Sasaki, Takeshi Toujyo, Yuji Takagi, Hiromasa Yamamoto and Hiroyuki Sasahara
Proc. IC3MT 2014   #166_0_0M(CD-ROM)   Sep 2014   [Refereed]
Mechanical Properties Evaluation of Metal Component Repaired by Direct Metal Lamination
Hisataka Takagi, Takeyuki Abe, Hou Sai, Hiroyuki Sasahara
Proc. IC3MT 2014   # 438_0_3_M(CD-ROM)   Sep 2014   [Refereed]
Kosaku Matsubara, Jun Tsuchimura, Shota Kawazoe and Hiroyuki Sasahara
Advanced Materials Research   1017 50-54   Sep 2014   [Refereed]
Nagatoshi Nakatsuka, Yudai Hirai, Atushi Kusakabe, Yasuhiro Yao and Hiroyuki Sasahara
Advanced Materials Research   1017 33-37   Sep 2014   [Refereed]
Norfariza Wahab, Yumi Inatsugu, Satoshi Kubota, Soo Young Kim, Hiroyuki Sasahara
Key Engineering Materials   625(4) 378-383   Aug 2014   [Refereed]
Wataru Takahashi, Hiroyuki Sasahara , Hiromasa Yamamoto, Yuji Takagi
Key Engineering Materials   625(4) 564-569   Aug 2014   [Refereed]
Development of Multi-Axis Micro Sawing Machine for Free-Form Curves Cutting Using Flexible Circular Saw
Yohei Yamada and Hiroyuki Sasahara
Proc. 15th ICPE 2014   114-117   Jul 2014   [Refereed]
Effect of Rake Angle on the Finish Cutting of the Enhanced Layer Made by Frictional Stir Burnishing
Yuusuke Yamada, Yoshimasa Takada and Hiroyuki Sasahara
Proc. 15th ICPE 2014   57-60   Jul 2014   [Refereed]
Estimation of workpiece flow stress and friction for FEM simulation of high-speed orthogonal cutting process
Norfariza Wahab and Hiroyuki Sasahara
Proc. 15th ICPE 2014   184-187   Jul 2014   [Refereed]
Estimation of workpiece flow stress and friction for FEM simulation of high-speed orthogonal cutting process using inverse calculation method
Norfariza Wahab and Hiroyuki Sasahara
Proc.ISCIE/ASME 2014 International Symposium on Flexible Automation   CD-ROM #106L   Jul 2014   [Refereed]
Yohei Yamada and Hiroyuki Sasahara
Precision Engineering   38(3) 611–616   Jul 2014   [Refereed]
On-demand surface enhancements by friction stir burnishing
Yoshimasa Takada and Hiroyuki Sasahara
Proc. 14th Int. Conf. EUSPEN   (2) 319-322   Jun 2014   [Refereed]
Curved-line cutting using flexible circular saw -inclination angle control of machined surface-
Yohei Yamada and Hiroyuki Sasahara
Proc. 14th Int. Conf. EUSPEN   (2) 255-258   Jun 2014   [Refereed]
Study on dissimilar metal fabrication with direct metal lamination by using arc discharge
Takeyuki Abe and Hiroyuki Sasahara
Proc. 14th Int. Conf. EUSPEN   (2) 117-120   Jun 2014   [Refereed]
アーク放電を用いた溶融金属積層による3次元造形
笹原弘之,阿部壮志
レーザ協会誌   39(3) 29-36   Mar 2014
The Effects of the Internal Coolant Supply through Grinding Wheel on the Grinding of CFRP
Tomoko Kikuma, Rei Koyasu, Yasuhiro Yao and Hiroyuki Sasahara
Proc. The 5th Int. Conf. of Asian Society for Precision Engineering and Nanotechnology   CD-ROM #1202   Nov 2013   [Refereed]
FEM simulation on the effect of cutting parameters in the driven rotary cutting
Wataru Takahashi, Hiroyuki Sasahara , Hiromasa Yamamoto, Yuji Takagi
Proc. The 5th Int. Conf. of Asian Society for Precision Engineering and Nanotechnology   CD-ROM #1150   Nov 2013   [Refereed]
Identification of flow stress applicable for FEM simulation of orthogonal cutting process
Norfariza Wahab, Yumi Inatsugu, Satoshi Kubota, Soo-Young Kim, and Hiroyuki Sasahara
Proc. The 5th Int. Conf. of Asian Society for Precision Engineering and Nanotechnology   CD-ROM #1112   Nov 2013   [Refereed]
Control of the lamination height for accurate fabrication of shell structures by direct metal lamination using arc discharge
Takeyuki Abe, Hiroyuki Sasahara
Proc. The 5th Int. Conf. of Asian Society for Precision Engineering and Nanotechnology   CD-ROM #1073   Nov 2013   [Refereed]
Evaluation of tool damage in rotary machining process using numerical simulation technique
Masaki Okuda, Hiroyuki Sasahara, Wataru Takahashi, Satoshi Kubota, Soo-Young Kim,
Proc. 7th Int. Conf. on LEM21   428-431   Nov 2013   [Refereed]
Clarification of relationship between fiber orientation and tool wear in milling of CFRP
Daichi Murakami, Takeshi Yashiro and Hiroyuki Sasahara
Proc. 7th Int. Conf. on LEM21   277-280   Nov 2013   [Refereed]
Effect of Finish Cutting on the Mechanical Properties of the Enhanced Layer Made by Frictional Stir Burnishing
Yuusuke Yamada, Yoshimasa Takada and Hiroyuki Sasahara
Proc. 7th Int. Conf. on LEM21   241-244   Nov 2013   [Refereed]
Evaluation of Machining Characteristics on CFRP Straight-Line Cutting Using Flexible Circular Saw
Yohei Yamada, Nobuyuki Osumi, Kazuya Hatakeyama and Hiroyuki Sasahara
Proc. 7th Int. Conf. on LEM21   235-240   Nov 2013   [Refereed]
Investigation of End Mill Geometry when Helical Milling CFRP/ Al Stacks
Erween Abd Rahim, Zazuli Mohid, Ahmad Fahmi Yusuf, Mohd Romadan Hamzah, Hiroyuki Sasahara, Rei Koyasu
Proc. 7th Int. Conf. on LEM21   13-17   Nov 2013   [Refereed]
Kai Xu and Hiroyuki Sasahara
International Journal of Automation Technology   7(6) 751-759   Jul 2013   [Refereed]
Takeshi Yashiro, Takayuki Ogawa and Hiroyuki Sasahara
International Journal of Machine Tools and Manufacture   70(7) 63–69   Jul 2013   [Refereed]
Micromachining of Glass with Ultrasonic-vibration Table
Hiroyuki Sasahara, Kosuke Nagao, Kenichi Kumakura
Proc. 13th Int. Conf. EUSPEN   (2) 76-79   May 2013   [Refereed]
多軸加工機による難削材の形状研削加工
笹原弘之
機械技術   61(4) 24-27   Apr 2013
田中敬三,阿部壮志,吉丸玲欧,笹原弘之
日本機械学会誌論文集(C編)   79(800) 1168-1178   Apr 2013   [Refereed]
八尾泰弘,李志,中江慶吾,笹原弘之
砥粒加工学会誌   57(4) 229-234   Apr 2013   [Refereed]

Misc

 
Wataru Takahashi, Hiroyuki Sasahara, Hiromasa Yamamoto, Yuji Takagi
Key Engineering Materials   625 564-569   Jan 2015
In this paper, the influence of machining parameter in the driven rotary cutting was examined by using finite element simulation. Three dimensional modeling of rotary cutting of Inconel 718 was conducted and then cutting force, temperature distrib...
Norfariza Wahab, Yumi Inatsugu, Satoshi Kubota, Soo Young Kim, Hiroyuki Sasahara
Key Engineering Materials   625 378-383   Jan 2015
Nowadays, numerical simulation technique is very popular to estimate and predict the machining parameters such as cutting forces, stresses distribution, temperature and tool wear. The objective of this study is to determine the 0.45%C steel (JIS S...
Hiroyuki Sasahara, Kazuya Mizobe, Susumu Hara, Norio Kushihashi, Shigemi Shindo
Proceedings of the 15th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2015   377-378   Jan 2015
Turbine disk is important parts of gas turbine engine or jet engine. However, the manufacturing process of turbine disk is complicated. It needs several times of changeover and expensive equipments. Then, we developed a novel machining method for ...
Nagatoshi Nakatsuka, Yudai Hirai, Atsushi Kusakabe, Yasuhiro Yao, Hiroyuki Sasahara
Advanced Materials Research   1017 33-37   Jan 2014
© (2014) Trans Tech Publications, Switzerland. We explored the effect of supplying coolant from the inner side of a grinding wheel on the residual stress caused by grinding. Effect of depth of cut on grinding temperature and residual stress was al...
Kosaku Matsubara, Kosaku Matsubara, Jun Tsuchimura, Shota Kawazoe, Hiroyuki Sasahara
Advanced Materials Research   1017 50-54   Jan 2014
© (2014) Trans Tech Publications, Switzerland. Generally, grinding fluid is supplied from a nozzle to a grinding point. However, it is difficult to supply sufficient coolant to the deep grinding point of a hole. Therefore, we have proposed an alte...
Yohei Yamada, Hiroyuki Sasahara
Precision Engineering   38 611-616   Jan 2014
A flexible circular saw, which can be used in a novel machining process for high-speed carbon fiber-reinforced plastic (CFRP) plate cutting, was developed. In this process, the saw is deflected like a bowl-like shape. A cross-section of the saw bo...
Yoshimasa Takada, Hiroyuki Sasahara
Conference Proceedings - 14th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2014   2 319-322   Jan 2014
In this study the novel surface enhancement technology named friction stir burnishing (FSB) is applied to 0.45% carbon steel. The FSB process can be conducted using the conventional machine tool which has the tool spindle such as a machining cente...
Hiroyuki Sasahara, Tomoko Kikuma, Rei Koyasu, Yasuhiro Yao
Precision Engineering   38 775-782   Jan 2014
Carbon fiber reinforced plastic (CFRP) is widely used in the aerospace industry due to its high specific strength and elastic modulus. When cutting CFRP with tools such as an endmill, problems such as severe tool wear, delamination, and burrs in t...
Kai Xu, Hiroyuki Sasahara
International Journal of Automation Technology   7 751-759   Nov 2013
Textured surfaces play a decisive role in the development of many advanced fields. This study describes a new strategy for efficiently machining textured surfaces with regularly aligned cutter marks on a certain surface using a ball-end milling te...
Takeshi Yashiro, Takayuki Ogawa, Hiroyuki Sasahara, Hiroyuki Sasahara
International Journal of Machine Tools and Manufacture   70 63-69   May 2013
The measurement of cutting temperature is important when dealing with carbon fiber-reinforced plastics (CFRPs). Temperatures higher than the glass-transition temperature of the matrix resin are not favorable as they damage the CFRP. In this resear...
H. Sasahara, K. Nagao, K. Kumakura
Proceedings of the 13th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2013   2 76-79   Jan 2013
A soda-lime glass is machined with using an ultrasonic-vibration table and the loading of the chips to the grinding tool and machined surface quality are compared with conventional micromachining. It was found that by applying the ultrasonic vibra...
Kai Xu, Hiroyuki Sasahara
Key Engineering Materials   523-524 54-57   Dec 2012
This study describes a new machining strategy to make regularly aligned cutter marks on free-form surface efficiently for increasing the added value of industrial product. While the free-form surface is divided into many small patch segments emplo...
Zhi Li, Yasuhiro Yao, Keigo Nakae, Hiroyuki Sasahara
Key Engineering Materials   523-524 125-130   Dec 2012
In this research, the temperature rise of the machined layer during surface grinding using a fluid supplying system from inside of grinding wheel is measured. Compared with the conventional fluid supply from an external nozzle, the grinding fluid ...
Takeyuki Abe, Masato Katagiri, Hiroyuki Sasahara
Proceedings - ASPE 2012 Annual Meeting   296-299   Dec 2012
Hiroyuki Sasahara, Mitsuru Shimomura
Proceedings - ASPE 2012 Annual Meeting   445-448   Dec 2012
Yohei Yamada, Nobuyuki Osumi, Akio Takasugi, Hiroyuki Sasahara
Proceedings - ASPE 2012 Annual Meeting   136-139   Dec 2012
E. A. Rahim, Z. Mohid, M. F M Jamil, K. C. Mat, R. Koyasu, H. Sasahara
Advanced Materials Research   576 68-71   Nov 2012
Generate borehole by helical milling process may be used effectively since accurate location of the hole may be secured by means of the feed screw graduations. Fiber delamination which is the main defect occurred during hole making process on carb...
E. A. Rahim, Z. Mohid, K. C. Mat, M. F M Jamil, R. Koyasu, H. Sasahara
Advanced Materials Research   576 64-67   Nov 2012
This paper presents an alternative way of producing a hole by using a helical milling concept on a carbon fiber reinforced polymer (CFRP). Delamination is a major problem associated with making a hole by drilling on the CFRP. This study focused on...
Yohei Yamada, Nobuyuki Osumi, Akio Takasugi, Hiroyuki Sasahara
Journal of Advanced Mechanical Design, Systems and Manufacturing   6 971-978   Sep 2012
We propose a flexible circular saw for high-speed cutting of curved lines in carbon fiber-reinforced plastic (CFRP). A conventional circular saw is appropriate for straight line cutting, but it cannot be applied to curved line cutting because of t...
Takashi Matsumura, Haruhisa Sakamoto, Hiroyuki Sasahara, Hayato Yoshioka
Journal of Advanced Mechanical Design, Systems and Manufacturing   6 752   Sep 2012
Takeyuki Abe, Hiroyuki Sasahara
International Journal of Automation Technology   6 611-617   Sep 2012
Arc welding technology has been used to melt metal, and a fabrication system for three-dimensional metallic parts has been developed around it: direct metal lamination using arc discharge. Here, the relationship between residual stress in the shel...
Yasuhiro Yao, Li Zhi, Keigo Nakae, Hiroyuki Sasahara
Seimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering   78 710-715   Aug 2012
Grinding fluid is generally supplied from the supplying nozzle to the grinding point. However, if the amount of the grinding fluid is decreased, it is difficult to reach the grinding wheel because the air layers which rotate with periphery of grin...
Hiroyuki Sasahara, Keizo Tanaka, Reo Yoshimaru
Seimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering   78 415-419   May 2012
In this research, an arc welding technology has been applied to melt the metal and accumulate layer by layer for the fabrication of three dimensional metallic objects such as the machine parts and molds. In this paper, the effect of fabrication pa...
Kan Ding, Hiroyuki Sasahara
Advanced Materials Research   472-475 991-996   Mar 2012
In the cylinder of a sleeveless engine, molten iron-based alloy is directly sprayed onto the aluminum engine block instead of the previously used cast iron cylinder liner. However, a thermal spraying cylinder liner exhibits poor machining performa...
H. Sasahara, K. Kuroda, K. Xu, H. Matsuda
Proceedings of the 12th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2012   2 501-504   Jan 2012
This study describes a new machining strategy to make a regularly aligned micro dimples or grooves by a micro milling process. A patch division milling technique is used in this study. The spacing and the depth of the grooves can be controlled by ...
Erween Rahim, Takayuki Ogawa, Akihiko Miura, Hiroyuki Sasahara, Rei Koyasu, Yasuhiro Yao
Proceedings of the 6th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2011      Dec 2011
Carbon fiber reinforced polymer composites (CFRP) is being used extensively in the aircraft industry. This study is aimed to evaluate the influence of the drill geometry on thrust force, delamination factor as well as cutting temperature when dril...
Yohei Yamada, Nobuyuki Osumi, Akio Takasugi, Hiroyuki Sasahara
Proceedings of the 6th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2011      Dec 2011
In this paper, a flexible circular saw is applied to curved line cutting of a plate. In this process, the circular saw is deflected like a bowl by pushing the center of the circular saw on the circular rest. The curved line can be cut by the bowl-...
Kentaro Satake, Hiromasa Yamamoto, Hiroyuki Sasahara, Masaomi Tsutsumi, Toru Narita, Toshiyuki Muraki
Proceedings of the 6th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2011      Dec 2011
Cutting point temperature and tool wears during a driven rotary tool was examined in this paper. Dry and MQL tests of stainless steel (SUS304) were carried out. We measured the cutting point temperature by using tool-work-thermocouple method and t...
Takeshi Yashiro, Takayuki Ogawa, Hiroyuki Sasahara
Proceedings of the 6th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2011      Dec 2011
The measurement of cutting temperature is important when dealing with CFRP. High temperature beyond the glass-transition temperature of the matrix resin is not favorable as it gives some damages on the CFRP. In this research, temperature is measur...
Erween Abd Rahim, Hiroyuki Sasahara
Proceedings of the 6th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2011      Dec 2011
The main objective was to study the potency of palm oil as an MQL lubricant in the drilling of this material. Investigation revealed that the MQLPO (palm oil) produced lower thrust forces and drill temperatures than the MQLSE (synthetic ester). Th...
Kai Xu, Hiroyuki Sasahara
Proceedings of the 6th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2011      Dec 2011
A textural pattern is used to obtain physical and optical functions, and it is also possible to improve an ornamental design. This study describes a new machining strategy that utilizing patch division milling, In order to obtain regularly aligned...
Takeyuki Abe, Hiroyuki Sasahara
Proceedings of the 6th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2011      Dec 2011
In this research, an arc welding technology has been applied to melt the metal, and the fabrication system for three dimensional metallic parts, direct metal lamination using arc discharge, has been developed. In this paper, residual stress in the...
Kan Ding, Syuuji Adachi, Kimio Nishimura, Satoru Kukino, Makoto Setoyama, Hiroyuki Sasahara
Proceedings of the 6th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2011      Dec 2011
In the cylinder liner of a sleeveless engine, molten iron-based alloys are directly sprayed onto the aluminum engine block instead of the previously used cast iron cylinder liner. However, a thermal spraying cylinder liner exhibits poor machining ...
Yoshimasa Takada, Hiroyuki Sasahara
Proceedings of the 6th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2011      Dec 2011
In this study, the Frictional Stir Burnishing (FSB) process is applied to the cylindrical bar of 0.45%C steel. The FSB is a process where the burnishing tool rotates at high revolution speed. Then the thin surface layer is rubbed and stirred with ...
Erween Rahim, Takayuki Ogawa, Akihiko Miura, Hiroyuki Sasahara, Rei Koyasu, Yasuhiro Yao
Proceedings of the 6th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2011      Dec 2011
In recent year researchers and industries are trying to reduce the delamination factor when drilling of carbon fiber reinforced plastic (CFRP). Tool geometry design and process parameters were the main factors in the previous investigation. In par...
E. A. Rahim, E. A. Rahim, H. Sasahara
Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture   225 1505-1511   Sep 2011
Minimum quantity lubrication (MQL) machining involves the application of small quantity of lubricant to the tool-workpiece interface. This paper describes the results of an investigation on the effects of using different MQL lubricants (synthetic ...
E. A. Rahim, E. A. Rahim, H. Sasahara
Tribology International   44 309-317   Mar 2011
The main objective was to study the potency of MQL palm oil (MQLPO) as a lubricant in the high speed drilling of Ti6Al4V. For the comparison, MQL synthetic ester (MQLSE), air blow and flood conditions were selected. Uniform flank wear, micro-chipp...
Hiromasa Yamamoto, Kentaro Satake, Hiroyuki Sasahara, Toru Narita, Masaomi Tsutsumi, Toshiyuki Muraki
Seimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering   77 317-321   Mar 2011
In rotary cutting of Inconel718 (AMS5663), which is solution treated and age-hardened to HRC 45, this study clarifies the cutting speed achieving bom higher efficiency and longer tool life, and prevents adhesions on the cutting edge and machined s...
Erween A. Rahim, Erween A. Rahim, Hiroyuki Sasahara
Machining Science and Technology   15 76-90   Jan 2011
The components being manufactured in the aerospace industry must be capable of being utilized for long periods without failure. Thus, the functional behavior of these machined components is greatly dependent upon their surface integrity. The prese...
Satoshi Kiuchi, Hiroyuki Sasahara
Journal of Advanced Mechanical Design, Systems and Manufacturing   4(5) 838-848   Dec 2010
Significant enhancement of hardness characteristics was achieved through the Frictional Stir Burnishing (FSB) process. The enhanced region was generated by the FSB process where the thickness and hardness were approximately 200 m and 900 HV, respe...
Erween Abd Rahim, Erween Abd Rahim, Hiroyuki Sasahara
Key Engineering Materials   443 359-364   Aug 2010
This paper describes the results of application of different MQL liquids (synthetic ester and palm oil) to high speed drilling of Ti-6Al-4V. The investigation was focused on the surface integrity of the machined surface. It was found that palm oil...
FUKUDA MASAAKI, SASAHARA HIROYUKI, MATSUDA HIROSHI, TSUTSUMI MASAOMI
精密工学会誌(CD-ROM)   76(1) 111-115   Jan 2010
SASAHARA HIROYUKI, MATSUMARU TETSUSHI, KAMIOKA TOSHIHITO, TANAKA KEIZO, YOSHIMARU REO
日本機械学会論文集 C編   75(757) 2435-2439   Sep 2009
CHOI JOONMYEONG, SHIMOMURA MITSURU, SASAHARA HIROYUKI
日本機械学会論文集 C編   75(757) 2404-2409   Sep 2009
ITO HISAYOSHI, DASSANAYAKE K. M. MUDITHA, IGARASHI DAISUKE, SASAHARA HIROYUKI
日本機械学会論文集 C編   75(757) 2475-2482   Sep 2009
Joonmyeong Choi, Mitsuru Shimomura, Hiroyuki Sasahara
Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C   75 2404-2409   Sep 2009
In the metal cutting, a mechanical energy is transformed into the heat. The heat flows into workpiece, chip and tool. It will cause the thermal expansion. After the machining, the workpiece temperature decreases to normal temperature and then the ...
Hiroyuki Sasahara, Tetsushi Matsumaru, Toshihito Kamioka, Keizo Tanaka, Reo Yoshimaru
Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C   75 2435-2439   Sep 2009
A direct metal rapid fabrication process using an arc welding is developed. This methodology is based on the layer manufacturing process of the molten metals supplied by the arc discharge. In this report, it is shown that the overhanging shape con...
Kei Harada, Hiroyuki Sasahara
Journal of Materials Processing Technology   209(9) 4490-4495   May 2009
In this report, the behavior of the cutting force measured through the dynamic response of tool-work piece system in ultrasonic vibration cutting was discussed first. Measured cutting force mainly depends on the ratio of net cutting time to a vibr...
T. Obikawa, Y. Takemura, Y. Akiyama, J. Shinozuka, H. Sasahara
Journal of Materials Processing Technology   209(9) 4496-4501   May 2009
Residual stresses in the machined surface layer, which affect fatigue crack nucleation and stress corrosion cracking especially in aerospace engines and gas turbines for power generation, depend on microstructures in case of machining a multiple-p...
Hiroyuki Sasahara, Atsushi Kato, Hiroshi Nakajima, Hiromasa Yamamoto, Toshiyuki Muraki, Masaomi Tsutsumi
International Journal of Machine Tools and Manufacture   48(7-8) 841–850-850   Jun 2008
This paper aims to realize the high-speed rotary dry cutting of an Inconel 718 at 500 m/min on a multitasking lathe which has an additional milling spindle with an X/Y/Z-axis and inclination control. A series of experiments were conducted and are ...
Hiroshi Matsuda, Hiroyuki Sasahara, Masaomi Tsutsumi
International Journal of Machine Tools and Manufacture   48(1) 84-94   Jan 2008
In this paper, a patch division milling technique that can generate a geometric surface pattern by means of a ball-end mill on a surface is proposed. The finished surface is divided into many same-size small patch segments such as triangles, quadr...
YuLong Tang and Hiroyuki Sasahara
Journal of Advanced Mechanical Design, Systems, and Manufacturing   2(3) 278-289   2008
Hiroshi Nakajima, Atsushi Kato, Hiroyuki Sasahara, Hiromasa Yamamoto, Toshiyuki Muraki, Masaomi Tsutsumi
Journal of Advanced Mechanical Design, Systems, and Manufacturing   2(4) 532-539   2008
Ryuji Iwashita, Hiroyuki Sasahara
Journal of Advanced Mechanical Design, Systems, and Manufacturing   2(4) 711-718   2008
Temperature History and Metallographic Structure of 0.45%C Steel Processed by Frictional Stir Burnishing
Satoshi Kiuchi and Hiroyuki Sasahara
Proc. 5th Int. Conf. on LEM21, Kitakyushu   359-364   2009
Thermal Behavior and Chip formation on Rotary Cutting of Difficult-to-cut Materials Utilizing Multi Tasking Lathe and MQL
Hiromasa Yamamoto, Kentaro Satake, Toru Narita, Hiroyuki Sasahara, Masaomi Tsutsumi and Toshiyuki Muraki
Proc. 5th Int. Conf. on LEM21, Kitakyushu   661-666   2009
Hiroshi Matsuda, Hiroyuki Sasahara, Masaaki Fukuda and Masaomi Tsutsumi
Journal of Advanced Mechanical Design, Systems, and Manufacturing   2(4) 504-512   2008
Performance of Palm Oil as MQL Fluid During High Speed Drilling of Ti-6Al-4V
Erween Abd Rahim and Hiroyuki Sasahara
Proc. 5th Int. Conf. on LEM21, Kitakyushu   319-324   2009
Hiroshi Matsuda, Hiroyuki Sasahara, Masaomi Tsutsumi
Seimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering   73 355-359   Dec 2007
Surface topography is generated by the cutter marks of ball-end mill. It has been reported that the surface topography is determined by the eccentricity and tilting angle of tool axis and phase difference of cutting edges. However, the surface top...
Ryuji Iwashita, Hiroyuki Sasahara
LEM 2007 - 4th International Conference on Leading Edge Manufacturing in 21st Century, Proceedings      Dec 2007
For the planarization process of LSI wafers, metal bumps covered with polymer glue are machined with a diamond tool. In this study, the deformation process and temperature field in this process are analytically simulated with FEM. In order to anal...
Hiroshi Matsuda, Hiroyuki Sasahara, Masaaki Fukuda, Masaomi Tsutsumi
LEM 2007 - 4th International Conference on Leading Edge Manufacturing in 21st Century, Proceedings      Dec 2007
A textural surface pattern is used to add a physical or decorative function to an object's surface. We have proposed a milling technique involving patch division that can quickly generate a geometric surface pattern using a common profile-forming ...
YuLong Tang, Hiroyuki Sasahara
International Journal of Machine Tools and Manufacture   47(14) 2162–2171-2171   Nov 2007
Research was conducted on the effect of cutting conditions on temperature rise of cylinder liner during cylinder-boring process. A finite element method (FEM) model was developed to confirm suitable cutting conditions by predicting the temperature...
Hiroyuki Sasahara, Shohei Nagao, Masahisa Chino
Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C   73 2619-2624   Sep 2007
Almost holes such as cooling channels of a mold or hydraulic equipments are machined by drilling process. It is desirable to establish a cooling channel located within a constant distance along a curved surface of a cavity or a core. However, the ...
Y. Furukawa, H. Sasahara, A. Kakuta, K. Chuma
CIRP Annals - Manufacturing Technology   55(1) 573-576   Oct 2006
The machining of micro holes and grooves on single crystal SiC thin layers by a UV laser (355 nm wave length and 15 ps pulse width) is reported. It was verified that an optimum threshold, where both laser sublimation and photonic ablation can take...
Kiyoshi Okamura, Hiroyuki Sasahara, Toshiaki Segawa, Masaomi Tsutsumi
JSME International Journal, Series C: Mechanical Systems, Machine Elements and Manufacturing   49(1) 76-82   Sep 2006
Dry drilling of composite/metallic stacks for aircraft components is extremely difficult to keep sufficient hole quality and efficiency of drilling process. Problems of the dry drilling of those kinds of stacks are chip ejection, chip formation an...
Hiroyuki Sasahara, Shingo Ishizaka
Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C   72 2634-2640   Aug 2006
Most of work materials consist of multi phase and poly crystals. Each phase has different material property in multi phase alloys. When multi phase alloy is machined, the difference of material property of each phase affects the cutting mechanism....
K. Okamura, H. Sasahara, T. Seaawa, M. Tsutsumi
LEM 2005 - 3rd International Conference on Leading Edge Manufacturing in 21st Century   491-496   Dec 2005
Diy drilling of composite/metallic stacks for aircraft components is extremely difficult to keep sufficient hole quality and efficiency of drilling process. Problems of the dry drilling of the stacks are chip ejection, chip formation and high temp...
Hiroyuki Sasahara, Masaomi Tsutsumi, Masahisa Chino
International Journal of Advanced Manufacturing Technology   27(3-4) 268-273   Dec 2005
Layered manufacturing enables us to make 3D objects rapidly and directly from 3D-CAD data and enables us to handle any design changes. But materials such as light cured polymers, paper, or wax don't have enough strength to be used directly as mech...
Masahisa Chino, Hiroyuki Sasahara, Atsushi Doi, Makoto Takizawa, Masaomi Tsutsumi
Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C   71 713-718   Feb 2005
Layered manufacturing process using both sheet metal and polymers is proposed and the fabrication system using this method is developed in this paper. By using sheet metal and polymers, high strength parts with high dumping functions, suitable for...
Hiroyuki Sasahara
International Journal of Machine Tools and Manufacture   45(2) 131-136   Feb 2005
The affected layer is generated within the machined surface layer through the cutting process. Cutting conditions such as the nose radius of the tool, feed rate and shape of cutting edge at the finishing operation affect the residual stress, surfa...
Hiroyuki Sasahara, YuLong Tang
Progress of Machining Technology - Proceedings of the Seventh International Conference on Progress of Machining Technology, ICPMT'2004   769-774   Dec 2004
On a fine boring process of the cylinder of the engine block, the machining tolerance is going to be very severe in these days. One of the main causes of the machining error in the fine boring is thermal expansion of the cylinder. As the cutting e...
Toshiaki Segawa, Hiroyuki Sasahara, Masaomi Tsutsumi
International Journal of Machine Tools and Manufacture   44(11) 1215-1221   Sep 2004
Generally, critical machined parts such as aircraft parts require high fatigue strength and resistance to stress corrosion cracking. These machined parts almost all usually have tensile residual stress within the machined surface after milling. Ho...
Hiroyuki Sasahara, Guihong Jin, Masahiko Jin, Masao Murakawa
Nippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C   70 1843-1848   Jun 2004
The effects of cutting atmosphere and the repetition of intermittent contact-uncontact of toolchip interface on cutting force and chip formation were examined on the case of 50 Hz vibration cutting. To confirm which matter in the air degrades the ...
Hiroyuki Sasahara, Toshiyuki Obikawa, Takahiro Shirakashi
International Journal of Machine Tools and Manufacture   44(7-8) 815-822   Jun 2004
The variation of surface residual stress within a machined surface layer caused by face turning was studied. The size of the tool's corner radius and the feed rate affect residual stress. A process model using the finite element method is proposed...
Hiroyuki Sasahara, Koji Ito, Masaomi Tsutsumi
Seimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering   69 1749-1753   Dec 2003
This paper describes an optimization method of cutting conditions of milling process by analytical approach with the aid of a tool database system. First of all, a database system for milling operations is proposed. This database system can store ...
Hiroyuki Sasahara
Seimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering   69 1124-1128   Aug 2003
Dynamic cutting processes, such as wave removal operation and wave generation operation, were analyzed by elastic-plastic finite element method. Variation of undeformed chip thickness affects chip-forming process. Shear angle varies about 15° in w...
Hiroyuki Sasahara, Makoto Kawasaki, Masaomi Tsutsumi
Nippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C   69 2156-2161   Aug 2003
MQL is applied to the helical feed milling hole-making process of aluminum alloy. It is difficult to drill on aluminum alloy without cutting fluid because the adhesion to the tool leads to a chip jam, the tool breakage or low accuracy. By employin...
Hiroyuki Sasahara, Fuminori Mizutani, Masaomi Tsutsumi
Seimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering   66 80-84   Jan 2000
Oil-mist lubrication system supplies very small quantity of oil with compressed air to endmill from a nozzle. Vegetable oil without any harmful substance is used in this paper. Thus troubles such as environmental pollution or deterioration of work...
Control of Residual Stress within Machined Surface Layer in Face Turning
共著者 Hiroyuki SASAHARA, Toshiyuki OBIKAWA, Takahiro SHIRAKASHI
Proc. U.S. -Japan Symposium on High-Efficiency Damage-free Finishing of Advanced Materials, Oklahoma, U.S.A.   71-82   1999
A Study of Compressive Residual Stress on the Machined Surface of Aluminum Alloy
共著者 Toshiaki SEGAWA, Hiroyuki SASAHARA,Masaomi TSUTSUMI
Proc. ICPMT'2002      2003
Estimation of Residual Stress Distribution in Machined Surface and its Control through FEM Simulation
共著者 Takahiro SHIRAKASHI, Toshiyuki OBIKAWA Hiroyuki SASAHARA
Proc. 4th International ESAFORM Conference on Material Forming, Vol.2, Liege, Belgium   639-641   2001
Finite Element Modeling of Machining with a Helical Endmill
共著者 Toshiyuki OBIKAWA, Jun SHINOZUKA,Hiroyuki SASAHARA,他4名
Proc. 5TH ICPMT, Beijing   715-720   2000
Analysis of Tool Temperature in High-speed Milling
共著者 Hiroyuki SASAHARA, Kazufumi NISHI,Takehiko NITTA
Initiatives of Precision Engineering at The Beginning of a Millenium, ed. I. Inasaki, Kluwer Academic Publishers, (Proc. 10th ICPE, Yokohama)   279-283   2001
H. Sasahara, T. Obikawa
Seimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering   64 1083-1087   Jul 1998
When two phase alloys are machined with very small depth of cut that is about the same as grain size, the difference in material properties greatly affects the microscopic deformation of each phase in the shear zone. In this paper, machining proce...
T. Obikawa, H. Sasahara, H. Sasahara, T. Shirakashi, E. Usui, E. Usui
Journal of Manufacturing Science and Engineering, Transactions of the ASME   119 667-674   Nov 1997
A finite element modeling is developed to simulate and visualize the discontinuous chip formation in the orthogonal cutting of 60 percent Cu-40 percent Zn brasses. A ductile fracture criterion expressed as a function of strain, strain rate and hyd...
H. Sasahara, T. Obikawa, T. Shirakashi
Journal of Materials Processing Technology   62(4) 448-453   Dec 1996
The cutting process of the affected layer is simulated by FEM and the influence of cutting sequence on residual stress and strain are discussed in this report. The residual stress and strain after machining in the workpiece are affected by the flo...
Finite Element Modeling of Residual Stress Control on Machined Surface
共著者 Hiroyuki SASAHARA, Toshiyuki OBIKAWA,Takahiro SHIRAKASHI
Transactions of The North American Manufacturing Recearch Institute of SME   XXV 213-218   1997
Rapid Manufacturing System by Sheet Steel Lamination
共著者 Toshiyuki OBIKAWA, Masahiko YOSHINO,Hiroyuki SASAHARA, 他3名
Proc. 14th International Conference on CAPE'98, Tokyo   265-270   1998
Strategic Optimization of Cutting Conditions by Model-Based Analysis with the Aid of Database Utilization
Hiroyuki SASAHARA, Masaomi TSUTSUMI
Transactions of the North American Manufacturing Research Institution of SME   32 581-588   2004
Hiroyuki Sasahara, Toshiyuki Obikawa, Takahiro Shirakashi
Seimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering   61 1453-1457   Oct 1995
The orthogonal cutting process of the affected layer was simulated by FEM and the influence of the cutting conditions in previous cutting on residual stress and strain in the newly machined surface layer is investigated in this report. In the cutt...
FEM Analysis of Cutting Sequence Effect on Mechanical Characteristics in Machined Layer
Hiroyuki SASAHARA, Toshiyuki OBIKAWA, Takahiro SHIRAKASHI
Proc.ICPE'95,Singapore   581-584   1995
FEM Simulation on Machining Process of Two Phase Alloy
Hiroyuki SASAHARA, Toshiyuki OBIKAWA, Takahiro SHIRAKASHI
Proc. ICPE'97, Taipei   467-472   1997
Effect of Vibration Cutting on Cutting Force and Temperature
Hiroyuki SASAHARA, Kei HARADA
Proc Leading Edge Manufacturing 21st Century, Niigata   675-680   2003
Layered Manufacturing System using Sheet Metal-Polymer Lamination
Hiroyuki SASAHARA, Atsushi DOI, Makoto TAKIZAWA, Masahisa CHINO
Proc. ICoPE 2004, Singapore   659-664   2004
Hiroyuki Sasahara, Toshiyuki Obikawa, Takahiro Shirakashi
Seimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering   60 1801-1805   Dec 1994
The analytical method for the prediction of the mechanical state of machined surface layer was proposed. The residual stress and strain are caused by both the mechanical and the thermal state of cutting processes. Thus elastic-plastic deformation ...
Hiroyuki Sasahara, Toshiyuki Obikawa, Takahiro Shirakashi, Eiji Usui
Seimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering   60 565-569   Apr 1994
Finite amplitude chatter vibration can be attributed to the non-linearities of cutting processes and machine tools. It was reported in the previous paper that shear localized chip formation during chatter vibration reduces the input energy from cu...
Takahiro Shirakashi, Toshiyuki Obikawa, Hiroyuki Sasahara, Takeshi Wada
Seimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering   59 2003-2008   Dec 1993
The effect of tool rake angle and friction characteristics of tool face on residual stress distribution within machined sublayer was investigated based on FEM simulation proposed in the previous paper. Within the machined top surface by a sharp ed...
Takahiro Shirakashi, Toshiyuki Obikawa, Hiroyuki Sasahara, Takeshi Wada
Seimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering   59 1695-1700   Oct 1993
The analytical method for prediction the mechanical state of the machined surface with FEM was proposed. The flow type chip formation process at low velocity was simulated. As flow type chip formation process is one of the large deformation proble...
Eiji USUI, Tohru IHARA, Hiroyuki SASAHARA, Takahiro SHIRAKASHI
Journal of the Japan Society for Precision Engineering   55(11) 2017-2023   1989
The Analytical Prediction of Residual Stress within Machined Sublayer and Its Effect on Accuracy
TakahiroSHIRAKASHI, Hiroyuki SASAHARA, Toshiyuki OBIKAWA, Takeshi WADA
Int. J. JSPE   28(3) 200-205   1994

Books etc

 
機械加工学基礎
笹原弘之 (Part:Joint Work)
コロナ社   Jun 2018   ISBN:978-4-339-0
はじめての生産加工学2 応用加工技術編
笹原弘之 (Part:Joint Work)
講談社   Jun 2016   ISBN:978-4-156556-2
はじめての生産加工学1 基本加工技術編
笹原弘之 (Part:Joint Work)
講談社   Jun 2016   ISBN:978-4-156550-0
「新たなものづくり」3Dプリンタ活用最前線 基盤技術次世代型開発から産業分野別導入事例,促進の取組みまで (分担,低コストアーク溶接積層方式3Dプリンタの開発)
笹原弘之,阿部壮志(分担) (Part:Joint Work)
エヌティーエス   Dec 2015   
はじめての工作機械・副読本 (分担,複合加工機によるロータリ切削)
笹原弘之(分担) (Part:Joint Work)
ニュースダイジェスト社   May 2012   

Conference Activities & Talks

 
アーク溶接による造形の試み~アーク放電を用いた溶融金属積層による迅速な高強度3次元造形~
笹原弘之
溶接接合工学振興会第27回セミナー 3次元造形(3DP,RP, AM)の最前線   18 Oct 2016   溶接接合工学振興会
High Quality Machining of the CFRP with Hyper Grinding [Invited]
R.Koyasu, K. Suzuki and H.Sasahara
2nd IC3MT   7 Oct 2016   JSPE
Effect of Tip Shape of Burnishing Tool on processed surface of S45C on Frictional Stir Burnishing [Invited]
Y. Hiratsuka, H. Sasahara and Y. Takada
2nd IC3MT   7 Oct 2016   JSPE
Characteristics of machined surface and tool failure on CFRP cutting by circular saw [Invited]
Y. Sukegawa, H. Sasahara and Y. Yamada
2nd IC3MT   7 Oct 2016   JSPE
Effect of grinding wheel specifications on the grinding wheel surface temperature and the surface roughness for coolant supplying system from inter side of grinding wheel, [Invited]
Y. Fukuhara, S. Suzuki and H. Sasahara
19th ISAAT   2 Oct 2016   JSAT,ICAT

Works

 
High-Efficiency Damage-free Finishing of Advanced Materials.
Analytical Approach on Compressive Residual Stress Generation on the Machined Surface of Aluminum Alloy.
Artistic Activity   
FEM Analysis on Shearing and Cutting Processes
Artistic Activity   

Research Grants & Projects

 
機上計測と工具の機上成形機能を兼ね備えた超精密自律型工作機械の開発
Project Year: 2017 - 2017
ワイヤー+アーク放電方式による金属材料の付加加工における形状精度と健全性
Project Year: 2016 - 2018
機上計測と工具の機上成形機能を兼ね備えた超精密自律型工作機械の開発
Project Year: 2016 - 2016
酢酸ナトリウム水溶液の過冷却現象を利用した柔軟・難把持工作物への複雑形状創成
Project Year: 2015 - 2015
機上計測と工具の機上成形機能を兼ね備えた超精密自律型工作機械の開発
Project Year: 2015 - 2015