6061铝合金板激光焊接工艺试验研究  

Experimental study on laser welding technology of 6061 aluminum alloy plate

作　　者：王毅[1] WANG Yi(Henan Polytechnic Institute,Nanyang 473000,China)

机构地区：[1]河南工业职业技术学院

出　　处：《轻合金加工技术》2019年第8期44-47,共4页Light Alloy Fabrication Technology

基　　金：河南省科技厅重点科技攻关项目，编号162102310363

摘　　要：采用功率为1 000 W的光纤激光器对6061铝合金板进行焊接试验,通过对激光功率、焊接速度及离焦量三因素、三水平进行正交试验,得到最大的焊缝强度241. 8 N/mm2,对应的最佳工艺参数为激光功率1 000 W,焊接速度50 mm/s,离焦量1 mm。进一步优化激光调制频率避免焊缝中出现气孔,当激光调制频率为1 000 Hz时,焊缝内部无气孔。The welding test of 6061 aluminum alloy plate was carried out by the fiber laser with power of 1 000 W.The orthogonal test of laser power,welding speed and defocusing amount is carried out on three factors and three levels.The maximum weld strength 241.8 N/mm^2 is reached when laser power is 1 000 W,welding speed is 50 mm/s and defocusing amount is 1 mm.Further optimizing the laser modulation frequency can avoid pores in the welding seam.When the laser modulation frequency is 1 000 Hz,there are no pores in the welding seam.

关 键 词：6061铝合金板 激光焊接 调制 气孔 

分 类 号：TG456.7[金属学及工艺—焊接]