电阻点焊熔核形成过程数值研究
首发时间:2008-01-09
摘要:本文基于大型工程有限元软件ANSYS建立轴对称电、热耦合有限元模型对电阻点焊熔核形成与长大过程进行有限元分析,该模型综合考虑了交流变化的焊接电流、电极/工件以及工件/工件界面上的接触电阻,以及随温度变化的热物理属性等对点焊接头长大过程的影响。
关键词: 电阻点焊 电接触、热接触、温度场、点焊熔核
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Study of the effect of the induced magnetic field on resistance spot weld nugget formation process
Abstract:In this paper, an axisymmetrical coupled electrothermal finite element model is proposed to investigate resistance spot weld nugget formationand growth process based on commercial finite element code ANSYS. This model considers the effect of alternating welding current, thermal contact resistance and electric contact resistance at electrode/workpiece interface and workpiece/workpiece interface, and temperature-dependent thermophysical properties.
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No.1788718134811998****
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