Numerical simula tion of butt welding of high silicon aluminum alloy laser plate based on ANSYS

WANG Penglu; HE Qingguo

doi:10.7512/j.issn.1001-2303.2020.04.22

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Numerical simula tion of butt welding of high silicon aluminum alloy laser plate based on ANSYS
Vol. 50, Issue 4, Pages: 123-126(2020)
DOI： 10.7512/j.issn.1001-2303.2020.04.22

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WANG Penglu, HE Qingguo. Numerical simula tion of butt welding of high silicon aluminum alloy laser plate based on ANSYS. [J]. 50(4):123-126(2020)
DOI：

WANG Penglu, HE Qingguo. Numerical simula tion of butt welding of high silicon aluminum alloy laser plate based on ANSYS. [J]. 50(4):123-126(2020) DOI： 10.7512/j.issn.1001-2303.2020.04.22.

摘要

介绍目前国内外高硅铝合金激光焊接的趋势,详细阐述ANSYS激光焊接有限元模拟的分析过程,从几何模型的建立、网格划分、定义材料属性等方面介绍了前处理过程;从热源的加载、生死单元技术、瞬态热分析方面介绍了温度场分析过程,获得了焊接及冷却过程温度场分布情况;通过ANSYS后处理器得到了温度场分布云图;通过热结构耦合过程得到了焊接瞬时应力分布。仿真得到的温度场满足焊接温度需求,应力场分布会产生一定的形变。

Abstract

This paper briefly introduces the current trend of laser welding of high silicon aluminum alloy at home and abroad, and introduces the analysis process of ANSYS laser welding finite element simulation in detail. The process of temperature field analysis is introduced from the aspects of heat source loading, element birth and death technique and transient thermal analysis. The temperature field distribution cloud map is obtained by ANSYS postprocessor. The instant-aneous stress distribution of welding is obtained by thermal structure coupling process. The temperature field obtained by simulation meets the requirements of welding temperature,and the stress field distribution will produce some deformation.

关键词

高硅铝合金网格划分体生热率热源生死单元通用后处理器

Keywords

high-silicon aluminum alloygrid generationvolumetric heat sourcebirth and death elementuniversal post-processor

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