金属加工（热加工）Issue(7)：85-88,93,5.
铝合金激光角焊缝背部质量控制及检测方法的研究
Research on quality control and detection methods for backside of aluminum alloy laser fillet welding seam
宋宏伟 1孔德群 1王玉水 1李春宇 1张壹铭1
作者信息
- 1. 北京奔驰汽车有限公司 北京 100176
- 折叠
摘要
Abstract
Laser fillet welding process of automotive aluminum alloys may have defects of backside quality issues,including back melting and cracking,which affect the appearance and strength of the product.Taking the coverage area of a certain product that is prone to such problems as laser welding process experiments,macroscopic microstructure analysis of metal materials,metallographic testing,composition analysis,and other methods,this study explores the causes and patterns of failure.Study the feasibility of online detection methods for defects such as melting through and cracking through visual measurement experiments.The results indicate that stable penetration can be avoided through appropriate parameter settings,while controlling heat input in high constraint stress areas to prevent back cracking.At high production rates,visual inspection has a high detection rate for melting through monitoring,but more accurate detection methods need to be sought for cracking issues.关键词
铝合金激光角焊缝/熔穿/裂纹/视觉检测Key words
aluminum alloy laser fillet weld/melting through/crackle/visual inspection引用本文复制引用
宋宏伟,孔德群,王玉水,李春宇,张壹铭..铝合金激光角焊缝背部质量控制及检测方法的研究[J].金属加工（热加工）,2025,(7):85-88,93,5.
