光束摆动对Ti60合金激光焊能量分布及焊缝成形的影响  

Effect of laser wobble on energy distribution and weld forming of Ti60 alloy laser welding

作　　者：鲁弈廷 芦伟 王彬 马旭颐 陈玮 LU Yiting;LU Wei;WANG Bin;MA Xuyi;CHEN Wei(Power Beam Processing Laboratory,AVIC Manufacturing Technology Institute,Beijing 100024,China)

机构地区：[1]中国航空制造技术研究院高能束流加工技术重点实验室,北京100024

出　　处：《焊接学报》2023年第6期95-102,I0008,I0009,共10页Transactions of The China Welding Institution

基　　金：高能束流加工技术重点实验室基金。

摘　　要：对2.0 mm厚Ti60合金进行激光摆动焊接,研究光束圆形摆动时摆动频率和摆动幅值对焊缝成形及能量分布的影响.结果表明:相较常规激光焊接,激光摆动焊接可以明显改善Ti60合金焊接接头焊缝成形;光束摆动参数对焊缝成形的影响与激光能量分布密切相关,可通过调整能量分布控制焊缝成形.当摆动频率为100~150 Hz,摆动幅值为0.5~1.0 mm时,激光能量分布相对均匀,可获得焊缝成形良好的Ti60合金激光焊接接头.与常规激光焊缝相比,摆动焊缝熔宽增加约30%,整体飞溅数量减少30%以上,为对接焊缝提供了更大的间隙适应性并有效改善了焊接质量.在光束摆动参数中,摆动幅值对焊缝成形特征及能量分布的影响更明显.Laser wobble welding is performed on a 2.0 mmthick Ti60 sheet.The effects of wobble frequency and amplitude on weld forming and energy distribution are investigated when wobble track is circular.The result shows that,the weld forming of Ti60 welded joint can be significantly improved by using laser wobble welding.The effect of wobble parameters on weld forming is closely related to energy distribution,and the weld forming can be controlled by adjusting the energy distribution.When the wobble frequency and amplitude are in the range of 100~150 Hz and 0.5~1.0 mm,respectively,the laser energy distribution is relatively uniform,a uniform and a high-quality weld can be obtained.Comparing with the conventional laser welds,the weld width increases 30%and welding spatter decreases more than 30%,which offers a larger gap margin and an effect way of weld quality improvement.The wobble amplitude has a stronger influence on weld forming and energy distribution than the wobble frequency.

关 键 词：TI60 激光摆动焊接 焊缝成形 能量分布 

分 类 号：TG456.7[金属学及工艺—焊接]