等离子体在大功率激光深熔焊中的作用及其影响因素的分析  

An analysis of Plasma Phenomena and Influencing Factors of Plasma in High Power Laser Welding

作　　者：赵良磊[1] 唐卓[1] 李国华[1] 蔡艳[1] 吴毅雄[1] 

机构地区：[1]上海交通大学材料科学与工程学院

出　　处：《应用激光》2007年第5期357-361,共5页Applied Laser

基　　金：科技部国际合作重点项目(项目编号:2006DFB5280)

摘　　要：大功率激光深熔焊以其优良的特性在制造行业中占有一席之地。本文利用微距高速摄影手段,对国产船用高强钢板激光深熔焊中的等离子体的作用进行实验研究,分析了保护气体流量、焊接速度、线能量对于等离子体面积和高度的影响,并综合分析了等离子体、线能量和焊接速度对焊缝熔深和熔宽的影响,总结了一些等离子体在焊接过程中的作用规律。High power CO2 laser welding is now a potential technology in international shipbuilding industry. This paper focuses on a high-power laser welding of domestic ship plate experirnent to analyze plasma area and height with difference gas flow rate,welding speed and line energy. Then the relationship between the changes of plasma and geometry of weld has been researched. Finally this paper describes some disciplinarian of plasma effect in welding.

关 键 词：等离子体 大功率激光深熔焊 焊接工艺 焊缝成形 

分 类 号：TG456.7[金属学及工艺—焊接]