激光焊速率对6061铝合金接头组织与性能的影响  

Effect of Laser Welding Rate on Microstructure and Properties of 6061 Aluminum Alloy Joint

作　　者：张唯 伍江瑶 牌君君 蹇海根[1,4] 肖贞洪 ZHANG Wei;WU Jiangyao;PAI Junjun;JIAN Haigen;XIAO Zhenhong(College of Materials and Advanced Manufacturing,Hunan University of Technology,Zhuzhou 412007,Hunan China;Guangdong Fenghua Zhuoli Technology Co.,Ltd.,Foshan 528200,Guangdong China;Shandong Key Laboratory of Advanced Aluminum Materials and Technology,Binzhou 262207,Shandong China;OKE CNC Precision Tool Co.,Ltd.,Zhuzhou 412500,Hunan China)

机构地区：[1]湖南工业大学材料与先进制造学院,湖南株洲412007 [2]广东峰华卓立科技股份有限公司,广东佛山528200 [3]山东省先进铝基材料与技术重点实验室,山东滨州262207 [4]株洲欧科亿数控精密刀具股份有限公司,湖南株洲412500

出　　处：《铸造工程》2023年第2期18-22,共5页Foundry Engineering

基　　金：广东省重点领域研发计划项目(2018B090905002);佛山市科技创新项目(FS0AA-KJ919-4402-0023);教育部产学合作协同育人项目(BINTECH-KJZX-20220831-37)。

摘　　要：选择ER4047填充焊丝对6061铝合金板材进行激光焊接试验,并研究三种激光焊接速率(2 m/min、3 m/min、4 m/min)对接头焊缝成形质量、微观组织及其力学性能的影响。结果表明,焊接速率为3 m/min时焊缝背宽比接近于1,接头成形质量和力学性能最佳。焊缝组织主要由等轴晶和具有{001}<100>强织构的柱状晶所构成,且柱状晶对接头组织的伸长率有一定的积极贡献。For laser welding of 6061 aluminum alloy sheet,ER4047 filler wire was chosen,and effects of laser welding rate(2 m/min,3 m/min,4 m/min)on weld formation quality,microstructure and mechanical properties were investigated.The findings demonstrate that the joint formability and mechanical qualities are improved when the welding rate is 3 m/min and the weld back width ratio is near to 1.The columnar grains contribute positively to the joint's elongation,and the weld is primarily made up of equiaxed grains and grains with a{001}<100>strong texture.

关 键 词：6061铝合金 激光焊接 焊接速率 组织与性能 

分 类 号：TG456.7[金属学及工艺—焊接]