摘要
激光束的能量分布以及作用方式对难焊材料激光焊接缺陷的抑制和焊缝性能的改善具有积极意义。对激光束进行适当的调制,如输出特种波形、缩小脉宽和改变输出频率等,可以优化激光束的能量分布和作用方式,进而改善焊接效果。概述了光束时间调制和空间调制技术,总结了光束时间调制和光束空间调制激光焊接技术的研究现状。随着激光器等核心器件国产化的持续推进,针对难焊接材料的光束调制激光焊接工艺技术将成为学术界的研究热点。
The energy distribution and mode of action of the laser beam have positive significance for the common defects of laser welding of difficult-to-weld materials and the improvement of weld performance.Properly modulating the laser beam,such as special waveform output,narrowing the pulse width,and changing the output frequency,can optimize the energy distribution and mode of action of the laser beam,thereby improving the welding effect.An overview of beam time modulation and space modulation was given,and the research on time modulation and space modulation in recent years was summarized.With the continuous advancement of the localization of core devices such as lasers,beam modulation laser welding technology for difficult-to-weld materials will become a research hotspot in academia.
作者
张云
吴乐峰
申晓龙
李河清
张明军
Zhang Yun;Wu Lefeng;Shen Xiaolong;Li Heqing;Zhang Mingjun(School of Mechanical Engineering,Hunan Industry Polytechnic,Changsha 410208,China;Hunan Provincial Key Laboratory of Key Technologies for High-performance Intelligent Manufacturing of Mechanical Equipment of College of Automotive and Mechanical Engineering,Changsha University of Science and Technology,Changsha 410114,China)
出处
《机电工程技术》
2023年第3期45-51,共7页
Mechanical & Electrical Engineering Technology
基金
湖南省自然科学基金科教联合基金项目(编号:2019JJ70078)
湖南工业职业技术学院科研项目(编号:GYKYZ201806)
长沙市自然科学基金资助项目(编号:kq2202197)。
关键词
激光焊接
光束调制
多光束激光焊接
研究现状
laser welding
beam modulation
multi-beam laser welding
research status
