理化检验：物理分册2012，Vol.48Issue(9)：618-621,4.
基于惰性气体钨极保护焊受电弓用6082铝合金角接接头开裂分析
Analysis on Cracking of Fillet Weld Joint in Aluminum Alloy 6082 for Pantograph Welded by TIG
摘要
Abstract
Crack appeared on the surface of bond area of the fillet weld joint consisting of spindle and lifting lug after assembly of lower arm of pantograph. Combination with the welded structure and actual manufacturing process, the causes and mechanisms of the crack were analyzed by physical and chemical properties testing of raw materials, T-joint cracking sensibility analysis, macro and micro inspection on the cross section of welded joints crack. The results showed that the crack near the bond line was caused by excessive welding heat input, however, impact force generated through lifting lug assembly that enlarged and expanded liquation crack. Put forwarded solution of crack, to ensure the welding qualification of production.关键词
受电弓/6082铝合金/惰性气体钨极保护焊/角接接头/开裂Key words
pantograph/aluminum alloy 6082/TIG/fillet welded joint/cracking分类
交通工程引用本文复制引用
徐振越,黄思俊,翟立飒,许鸿吉..基于惰性气体钨极保护焊受电弓用6082铝合金角接接头开裂分析[J].理化检验：物理分册,2012,48(9):618-621,4.基金项目
辽宁省教育厅资助项目 （）
