焊管2025，Vol.48Issue(7)：53-59,7.DOI:10.19291/j.cnki.1001-3938.2025.07.007
带对接间隙的316H激光深熔填丝焊接技术研究
Research on Welding Technology of 316H Laser Deep Penetration Filler Wire with Butt Gap
摘要
Abstract
To meet the engineering application requirements for laser welding of plates with butt gaps,laser deep penetration welding experiments with wire feed were conducted on 12 mm thick 316H stainless steel plates featuring butt joints.The key laser welding parameters,such as wire feeding speed,groove gap,and welding speed,were calculated theoretically and verified through experiments;thus,the optimum welding parameters for achieving high quality weld formation were obtained.The experimental results indicate that a wire feeding speed of 40 mm/s,a welding speed of 30 mm/s,a laser power of 8.5 kW,a defocus amount of-5 mm,and a weld gap of 0.1 mm represent the optimal process parameters for achieving high-quality weld formation.The theoretical calculations of the wire feeding speed to welding speed ratio are in close agreement with the corresponding values obtained from the experimental optimization,with the relative error maintained within 3.6%.Furthermore,both non-destructive testing,physical and chemical property evaluations of the welded specimens satisfied the required standards.关键词
激光填丝焊/对接间隙/力学性能/微观组织Key words
laser welding with filler wire/butt gap/mechanical property/microstructure分类
矿业与冶金引用本文复制引用
袁亮文,刘万存,赵佳,段莉蕾,汤景晟..带对接间隙的316H激光深熔填丝焊接技术研究[J].焊管,2025,48(7):53-59,7.基金项目
大连市科技人才创新项目"高功率激光钛合金深熔焊接技术研究"(项目编号2024RY034). （项目编号2024RY034）
