激光-MAG复合焊接工艺及焊接接头性能分析

Welded Joint Organization Performance Analysis on Laser-MAG Hybrid Welding

目前在大型构件,例如飞机和船体制造都需要用到厚板钢材,传统的焊接技术在焊接厚度20mm以上厚板钢材都存在一定的工艺缺陷。研究采用两种热源复合的激光-MAG复合焊接技术对厚板钢材进行焊接,提出了三种(双面无坡口形式、双面开坡口形式和单面开坡口形式)激光-MAG复合焊接工艺并优化了工艺参数,给未来激光-MAG复合焊接工艺的发展提供一定的工艺参数的参考。

At present,thick plate steel is needed in large components,such as aircraft and hull manufacturing.The traditional welding technology has certain process defects in welding thick plate steel above 20mm thickness.In this study,the laser-MAG hybrid welding technology with two kinds of heat sources is used to weld thick plate steel.Three kinds of laser-MAG hybrid welding processes(double-side no groove form,double-side groove form,and single-side groove form)are proposed and the process parameters are optimized,which provides a reference for the development of laser-MAG hybrid welding technology in the future.