• CN:11-2187/TH
  • ISSN:0577-6686

›› 1996, Vol. 32 ›› Issue (2): 34-39.

• 论文 • 上一篇    下一篇

TIG焊接温度场的有限元分析

蔡洪能;唐慕尧   

  1. 西安交通大学
  • 发布日期:1996-03-01

FEM ANALYSIS ON TIG WELDING TEMPERATURE FIELD

Cai Hongneng;Tang Muyao   

  1. Xi'an Jiaotong University
  • Published:1996-03-01

摘要: 建立了运动电弧作用下三维焊接温度场的计算机数值分析模型,分析中引入了热焓的概念和表面双椭圆分布热源模型,研制了相应的程序,具有较高的计算精度。用该模型对TIG焊接温度场进行了分析计算,得出了TIG焊接熔池的形状,尺寸和热影响区的温度分布。计算结果与试验结果吻合较好。

关键词: TIG焊, 数值模拟, 温度场

Abstract: Computational model is established for analysis of 3D welding temperature field caused by moving welding arc, in the model the concept of enthalpy and surface double ellipse distribution heat source are adopted. Relevant software is compiled for the model, which possesses higher precision. The model is employed to analyze TIG welding temperature field to obtain the shape and size of welding pool and temperature distribution in HAZ. It shows that the agreement is well between computational result and experiment result.

Key words: Numerical simulation, Temperature field, TIG welding