자동차용 핫스탬핑 고강도강 판재의 겹치기 레이저용접

• 영문명: Lap joint Laser Welding of Hot Stamped Ultra High Strength Steel for Automotive Application
• 발행기관: 한국레이저가공학회
• 저자명: 김용(Yong Kim) 박기영(Ki-young Park) 이경돈(Kyoung-don Lee)
• 간행물 정보: 『한국레이저가공학회지』한국레이저가공학회지 제15권 제1호, 1~5쪽, 전체 5쪽
• 주제분류: 공학 > 기계공학
• 파일형태: PDF
• 발행일자: 2012.03.31

영문 초록

Recently ultra high strength steels(UHSS) has been widely applied to the structural or safety components in the automotive industry. Specially, hot stamping boron steel 22MnB5 has shown the crash-resistant characteristics when applying to bumpers and pillars. Lap joint Laser welding of the hot stamped and die quenched sheets of Boron steel was carried out using 3kW Nd/YAG laser. The appropriate Lap joint laser welding conditions were founded separately for four lap joint combinations. The lower sheest is a hot stamped sheet in common and the upper sheet is selected among the hot stamped steel and high strength steels such as SPCC, 370MPa, and 590MPa grade high strength steels. Cross bead sections and local hardening and softening were observed as well as tensile-shear test results.

목차

Abstract

1. 서론

2. 실험 방법

3. 실험 결과 및 고찰

4. 결론

후기

참고문헌

키워드

레이저 용접 겹치기 이음 초고강도강판 핫스템핑 차체 Laser welding Lap joint UHSS Hot stamping Automotive body