乘用车车门铝板材料激光填丝焊试验研究

Experimental Study on Laser Filler Wire Welding of Aluminum Plate Material of Passenger Car Door

以乘用车铝合金车门为研究对象,通过仿真模拟与工艺试验的综合应用,研究铝合金板材的激光填丝焊工艺和焊接质量,通过评判焊接后焊缝的成形质量和力学性能等,获得适用于铝合金车门激光填丝焊的最佳工艺参数,并利用此参数进行铝车门内板总成的激光填丝焊试制,获得了较好的焊接质量。结果表明,针对厚度为1.5 mm的5182铝板和6016铝板激光填丝搭接焊,采用激光功率为2600 W、焊接速度为2.5 m/min、送丝速度为7 m/min的参数配置,可获得较好的焊缝成形质量和力学性能,满足实际铝车门内板总成的焊接质量要求。

With the aluminum alloy door of passenger car as the research object,the laser wire filling welding process and welding quality of aluminum alloy sheet are studied through comprehensive application of simulation and process test.The optimal process parameters suitable for laser wire filling welding of aluminum alloy door are obtained by judging the forming quality and mechanical properties of the weld after welding.Using this parameter,the laser wire filling welding of the inner plate assembly of the aluminum door is prototyped and a better welding quality is achieved.The results show that for the laser wire filling lap welding of 5182 aluminum plate and 6016 aluminum plate with thickness of 1.5 mm,better weld forming quality and mechanical properties can be obtained with the following process parameters:2600 W laser power,2.5 m/min welding speed and 7 m/min wire feeding speed,and can satisfy the welding quality requirements of the actual aluminum door inner plate assembly.