論文

査読有り
2018年7月

レーザ予熱方式を用いた中炭素鋼の摩擦攪拌接合

鉄と鋼
  • 和田 拓也
  • ,
  • 森貞 好昭
  • ,
  • 孫 玉峰
  • ,
  • 藤井 英俊
  • ,
  • 川人 洋介
  • ,
  • 松下 宗生
  • ,
  • 池田 倫正

104
7
開始ページ
23
終了ページ
30
記述言語
日本語
掲載種別
研究論文(学術雑誌)
DOI
10.2355/tetsutohagane.TETSU-2018-001
出版者・発行元
一般社団法人 日本鉄鋼協会

<p>Friction Stir Welding (FSW) has expanded to many metallic materials with higher melting points or much higher strength than the aluminum alloys. If the tool travels too quickly along the welding seam during the welding process or if the melting point of the workpiece is high, the frictional heat generated between the tool and the workpiece may not be sufficient to cause material flow. Insufficient heat input results in the formation of groove or tunnel-shaped defects in the stir zone and also severe wear or breaking of the FSW tool. To solve these problems, a higher heat input is required to soften the materials. Therefore, several preheating methods have been adopted to increase the heat input. In this study, a fiber laser was used as the preheating source during the FSW. In this experiment, the effect of the laser-preheating on the defect formation and tool rotational torque during the FSW was investigated. Additionally, a difference in the material flow during the conventional FSW and laser-preheating FSW was observed by two pairs of x-ray transmission real-time imaging systems. As a result, it was found that the laser preheating reduced the defect formation and the tool rotational torque during the FSW. Furthermore, laser beam irradiation on the retreating side (RS) was the most effective in reducing the defect formation. On the other hand, the irradiation on the advancing side (AS) was the most effective in reducing the tool rotational torque.</p>

リンク情報
DOI
https://doi.org/10.2355/tetsutohagane.TETSU-2018-001
CiNii Articles
http://ci.nii.ac.jp/naid/130007413092
CiNii Books
http://ci.nii.ac.jp/ncid/AN00151251
URL
http://id.ndl.go.jp/bib/029150639
ID情報
  • DOI : 10.2355/tetsutohagane.TETSU-2018-001
  • ISSN : 0021-1575
  • CiNii Articles ID : 130007413092
  • CiNii Books ID : AN00151251

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