Laser Solutions (한국레이저가공학회지)
- Volume 11 Issue 3
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- Pages.16-20
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- 2008
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- 1229-0963(pISSN)
Study on the porosity formation in the lap joint CW Nd:YAG laser welds of 6K21 aluminum alloy sheet
6K21 알루미늄 판재의 레이저 겹치기 용접 시 발생하는 기공에 관한 연구
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Yang, Hyun-Seok
(Institute for Advanced Engineering) ;
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Lee, Kyoung-Don
(Institute for Advanced Engineering) ;
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Kim, Yong
(Institute for Advanced Engineering) ;
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Park, Ki-Young
(Institute for Advanced Engineering)
-
양현석
(고등기술연구원 로봇/생산기술센터) ;
-
이경돈
(고등기술연구원 로봇/생산기술센터) ;
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김용
(고등기술연구원 로봇/생산기술센터) ;
-
박기영
(고등기술연구원 로봇/생산기술센터)
- Published : 2008.09.30
Abstract
The lap Joint welding of 6K21 aluminum sheets by Nd:YAG laser were performed with an aluminum 5183 filler wire or without a filler wire. The porosity of laser welding beads were observed through an optical microscope and X-ray photography with various levels of welding speed and gap size. The porosity was observed in the gap between upper and lower sheet near a heat affected zone when autogenous welding. Decrease of welding speed and use of AA5183 filler wire reduced porosity significantly.