| 点焊规范参数对AZ31镁合金熔核尺寸影响的数值模拟 |
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| 引用本文： | 刘文明,李萌盛,汪迎春,王成.点焊规范参数对AZ31镁合金熔核尺寸影响的数值模拟[J].轻合金加工技术,2011,39(12). |
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| 作者姓名： | 刘文明 李萌盛 汪迎春 王成 |
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| 作者单位： | 合肥工业大学材料科学与工程学院,安徽合肥,230009 |
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| 摘 要： | 采用有限元分析软件Ansys对1.2 mm厚度的AZ31镁合金工件点焊过程温度场进行了模拟。依次改变焊接电流、加热时间及电极压力,优选出该厚度的AZ31镁合金工件点焊的规范参数,并通过试验加以验证。结果表明,随着焊接电流和加热时间的增加,熔核直径和焊透率逐渐增大;提高电极压力,会使熔核直径和焊透率减小。
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| 关 键 词： | 镁合金 点焊 熔核尺寸 规范参数 |
Numerical simulating the effect of spot welding parameters on melt-nucleus size of magnesium alloy |
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| LIU Wen-ming,LI Meng-sheng,WANG Ying-chun,WANG Cheng.Numerical simulating the effect of spot welding parameters on melt-nucleus size of magnesium alloy[J].Light Alloy Fabrication Technology,2011,39(12). |
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| Authors: | LIU Wen-ming LI Meng-sheng WANG Ying-chun WANG Cheng |
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| Affiliation: | LIU Wen-ming,LI Meng-sheng,WANG Ying-chun,WANG Cheng(School of Material Science and Engineering,Hefei University of Technology,Hefei 230009,China) |
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| Abstract: | The spot welding temperature field of AZ31 magnesium alloy sheet with thickness of 1.2mm has been simulated by finite element analysis software Ansys.The reasonable standard parameters of AZ31 magnesium alloy spot welding has been optimized by changing welding current,heating time and electrode pressure alternatively,and the parameters have been proved by experiment.The research indicates that the melt-nucleus diameter and the welding fusion rate are increased with the welding current and heating time risin... |
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| Keywords: | magnesium alloy spot welding melt-nucleus size standard parameter |
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