大规格复杂截面铝型材挤压焊缝的质量检测  

Quality Inspection of Extruded Weld for Large-sized Aluminum Profile with Complex Section

作　　者：吴海旭 杨丽 李洪林 石玲 屈玉石 WU Hai-xu;YANG Li;LI Hong-lin;SHI Ling;QU Yu-shi(Liaoning Zhongwang Group Co., Ltd., Liaoyang 111003, China)

机构地区：[1]辽宁忠旺集团有限公司

出　　处：《铝加工》2019年第3期10-13,共4页Aluminium Fabrication

基　　金：国家重点研发计划资助项目(2016YFB0300902)

摘　　要：大规格复杂截面铝型材是轨道交通车辆车体结构用的关键材料,多采用分流组合模焊合挤压而成。挤压焊缝焊合是否良好,对铝型材的力学性能和轨道车辆的运行安全都有重要影响。本文对大规格复杂截面铝型材挤压焊缝的金相检测和折断检测方法进行了简述,供同行参考。Large-sized aluminum profiles with complex section are the key materials for vehicle body structure of rail transit vehicle,and most of them are welded and extruded by combined porthole die. The quality of seam welds has an important influence on the mechanical properties of aluminum profiles and safety of rail vehicles. Metallographic examination method and breaking test method for seam weld of large-sized aluminum profiles with complex section are sketched in the paper, for reference for peer.

关 键 词：大规格复杂截面 铝型材 挤压焊缝 检测方法 

分 类 号：TG441.7[金属学及工艺—焊接] TG379