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钨极氩弧连续和间断焊接的残余应力对比分析

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Indexed by:期刊论文

Date of Publication:2009-08-26

Journal:风机技术

Included Journals:ISTIC

Issue:4

Page Number:45-50

ISSN No.:1006-8155

Key Words:钨极氩弧焊;间断焊接;残余应力

Abstract:结合工程实际,应用热弹塑性理论、耦合场(热、固耦合)和瞬态传热的基本模型,使用Ansys的APDL语言编写程序进行移动热源的有限元建模计算.数值计算表明,钨极氩弧间断焊接在构件叶片上产生的残余应力数值较大的区域比连续焊接更深.证明了回炉热处理能降低焊接的残余应力.

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