Laser Solutions (한국레이저가공학회지)
- Volume 11 Issue 3
- /
- Pages.16-20
- /
- 2008
- /
- 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
-
Yang, Hyun-Seok
(Institute for Advanced Engineering)
;
-
Lee, Kyoung-Don
(Institute for Advanced Engineering)
;
-
Kim, Yong
(Institute for Advanced Engineering)
;
-
Park, Ki-Young
(Institute for Advanced Engineering)
-
양현석
(고등기술연구원 로봇/생산기술센터)
;
-
이경돈
(고등기술연구원 로봇/생산기술센터)
;
-
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.