基于ANSYS的小间隙对接熔化极弧焊温度场数值模拟  

Numerical Simulation of Consumable Electrode Arc Butt Welding Temperature Fields with Small Gap Based on ANSYS

作　　者：刘习文[1] 刘超英[1] 成红英[1] 

机构地区：[1]肇庆学院电子信息与机电工程学院,肇庆526061

出　　处：《热加工工艺》2012年第23期184-187,共4页Hot Working Technology

摘　　要：分析了熔化极焊接热源分布模式,利用有限元软件ANSYS对焊接温度场进行计算,采用APDL编写了移动热源加载子程序,采用生死单元法处理焊接过程中对接焊焊缝间隙熔丝金属填充问题,分析了焊缝间隙的变化对焊接温度场的影响,以有利于后续的熔池系统建模和控制。The heat-input models of consumable electrode arc welding were analyzed, and ANSYS software was used to calculate the butt welding temperature fields. ANSYS parametric design language was applied to develop sub-program for loading moving heat sources. Live and death element method was applied to simulate metal filling into the weld gap. The influence of weld gap variations to molten pool temperature was analyzed, it was helpful to the consequent molten pool modeling and control.

关 键 词：对接熔化极弧焊 温度场 数值模拟 生死单元 

分 类 号：TG402[金属学及工艺—焊接]