MISC

2015年10月

Enhancement of Cross-Tension Strength of Resistance Spot-Welded Lap Joints by Laser Heating

JOURNAL OF THE JAPAN INSTITUTE OF METALS
  • Takanori Kitamura
  • ,
  • Tetsuya Akiyama
  • ,
  • Masaru Asada

79
10
開始ページ
518
終了ページ
522
記述言語
日本語
掲載種別
DOI
10.2320/jinstmet.J2015029
出版者・発行元
JAPAN INST METALS

This paper deals with the strengthening of spot-welded lap joints through the formation of a new hardened zone (HAZ). The factors needed for strengthening were determined via a previously proposed equation predicting the strength. Using these factors, the strengthening of spot-welded lap joints was examined. First, in order to increase the hardened zone, the edge of the nugget was heated with a laser. Next, cross-tension tests were conducted by using spot-welded lap joints that were heated by a laser at various distances from the nugget. It was found that the fracture position and the cross-tension strength (CTS) were governed by whichever was higher: the strength outside HAZ or the strength at the nugget's edge. It was also shown that the cross-tension strength could be improved by 10%.

Web of Science ® 被引用回数 : 2

リンク情報
DOI
https://doi.org/10.2320/jinstmet.J2015029
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000365380700007&DestApp=WOS_CPL

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