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ji yu msc.marc de zhong hou ban ngw-co2 han jie mo ni
Author(s): 
Pages: 34-36
Year: Issue:  3
Journal: Welding Technology

Keyword:  窄间隙焊接焊接残余应力焊接变形焊接仿真;
Abstract: 焊接数值模拟受到越来越广泛的关注,越来越多地应用于实际生产过程中,本文利用Marc模块对中厚板低合金结构钢CO2气体保护焊进行三维数值模拟,考察2种焊接坡口形式对焊接变形、焊接残余应力、瞬态温度场分布的影响。结果表明:与传统方法相比,窄间隙焊接(Narrow Gap Welding,NGW)的焊接变形及焊接残余应力更小,说明NGW-CO2技术在中厚板的焊接中有良好的优异性。
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