2 kW半导体激光焊接铝合金工艺研究  

Beam Shaping of 2 kW Diode Laser for 6303 Al-Alloy Welding: A Methodological Study

作　　者：史亚贝[1] 马骁 Shi Yabei;Ma Xiao(Henan Polytechnic Institute,NanYang 473000,China;Machinery Industry Education development Center,Beijing,1OOO55,China)

机构地区：[1]河南工业职业技术学院,南阳473000 [2]机械工业教育发展中心,北京100055

出　　处：《真空科学与技术学报》2020年第8期787-790,共4页Chinese Journal of Vacuum Science and Technology

基　　金：河南省高等学校重点科研项目(20B460003发动机活塞智能化制造工艺优化);南阳市科技计划课题(KJGG049薄壁零件数控加工变形补偿技术研究;KJGG008基于Pro/E与UG接口技术开发的研究)。

摘　　要：为实现半导体激光器对铝合金的焊接,将2 kW半导体激光器的光束进行整形,提高光束质量,光束亮度达到412.00 MW/cm^2.sterad,比整形前的光束亮度增加了7倍。然后采用整形的半导体激光器对1 mm厚度的6063铝合金进行拼接焊接实验,通过对焊接工艺参数激光功率、焊接速度、离焦量进行正交优化实验,焊缝接头最大抗拉强度为172.3 MPa,达到母材的85%,实现了半导体激光对铝合金的激光焊接目标。For aluminum alloy welding by diode laser,the diode laser beam was been shaped,to increased the beam quality.The beam brightness was 412.00 MW/cm^2.sterad,which was 7 times higher than before been shaped.The been shaped diode laser was used of welding experiment for 6063 aluminum alloy with 1 mm thickness.Through orthogonal experiment with three factors of laser power,welding speed,defocusing amount,the maximum tensile strength of welds was 172.3 MPa,reached to 85% of base metal,tensile strength.Aluminum alloy welding by diode laser was realized.

关 键 词：半导体激光器 光束整形 6063铝合金 激光焊接 

分 类 号：TG456.7[金属学及工艺—焊接]