激光-MIG复合焊接多因素对车身6016铝合金型材相对熔化率的影响分析研究

Laser-MIG Composite Welding Multi-Factors on the Body 6016 Aluminum Alloy Parts Relative Melting Rate Impact Analysis

采用激光-MIG复合焊接方法对车身6016铝合金件进行平板堆焊,研究激光功率、焊接电流、光丝距对相对熔化率的影响和不同条件下接头熔深与熔化率之间的关系。试验结果表明:光丝距对相对熔化率的影响最大;在不考虑任何参数影响时,接头熔深与相对熔化率的关系呈现无序状态;相同的激光功率条件下,获得更大的焊接熔深将意味着能够得到更大的相对熔化率。

The effects of laser power,welding current and optical wire distance on the relative melting rate and the relationship between the joint penetration depth and the melting rate under different conditions were studied by using laser-MIG composite welding method.The experimental results show that the optical distance has the greatest influence on the relative melting rate.When no parameter is considered,the relationship between the joint penetration depth and the relative melting rate is disordered.Under the same laser power condition,greater welding penetration means greater relative melting rate can be obtained.