학술저널
6K21 알루미늄 판재의 레이저 겹치기 용접 시 발생하는 기공에 관한 연구
Study on the porosity formation in the lap joint CW Nd:YAG laser welds of 6K21 aluminum alloy sheet
- 한국레이저가공학회
- 한국레이저가공학회지
- 한국레이저가공학회지 제11권 제3호
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2008.0916 - 20 (5 pages)
- 75
The lap joint welding of 6k2l 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.
Abstract<BR>1. 서론<BR>2. 실험 방법<BR>3. 결과 및 고찰<BR>4. 결론<BR>참고문헌<BR>
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