Numerical Analysis of Energy Effect in Laser-TIG Hybrid Welding

作     者：Yanbin CHEN Liqun LI Junfei FANG Xiaosong FENG 

作者机构：National Key Laboratory of Advanced Welding Production Technology Harbin Institute of Technology Harbin 150001 Chlna National Key Laboratory of Advanced Welding Production Technology Harbin Institute of Technology Harbin 150001 Chlna National Key Laboratory of Advanced Welding Production Technology Harbin Institute of Technology Harbin 150001 Chlna National Key Laboratory of Advanced Welding Production Technology Harbin Institute of Technology Harbin 150001 Chlna 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2003年第19卷第z1期

页      面：23-26页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

主　　题：Laser-TIG hybrid welding, Energy effect, Numerical simulation 

摘      要：The hybrid source that combined CO2 laser with TIG arc to proceed welding was analyzed. Based on an energymodel, the temperature field and weld shape were calculated numerically. The heat transfer characteristic of thehybrid heat source to workpiece and its effect to weld shape were also analyzed. Through analyzing the enhancementeffect of the hybrid heat source, the absorption effect and defocusing effect of the hybrid arc to laser were calculated,and the regularity of the energy density to the current was obtained subsequently. At last, the critical energy matchesto induce the enhancement effect of CO2 laser-TIG arc hybrid welding were obtained.