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基于Simufact的ZChSnSb8Cu4/钢层状双金属TIG-MIG复合焊接数值模拟

Numerical Simulation of Layered Bimetallic ZChSnSb8Cu4/Steel TIG-MIG Hybrid Welding Based on Simufact.

作者信息

Guo Hao, Fan Chenkang, Yang Shufeng, Wang Jianmei, Pei Wenle, Chu Zhibing

机构信息

Engineering Research Center Heavy Machinery Ministry of Education, Taiyuan University of Science and Technology, Taiyuan 030024, China.

School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China.

出版信息

Materials (Basel). 2023 Jul 29;16(15):5346. doi: 10.3390/ma16155346.

DOI:10.3390/ma16155346
PMID:37570050
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10419655/
Abstract

Considering the problem of the weak bonding interface structure between the rolling mill oil and film bearing bushings of Babbitt alloy and steel substrate, a numerical simulation of the layered bimetallic ZChSnSb8Cu4/steel by tungsten inert gas (TIG)-metal inert gas (MIG) hybrid welding process was carried out using Simufact Welding software (version 2020). In this study, the TIG-MIG hybrid welding process was simulated to obtain the temperature field and the stress field distributions. The residual stress and the deformation of the weldment were also analyzed using the calculated results. The results showed that the temperature gradient and the thermal stress were reduced in TIG-MIG hybrid welding compared to the conventional MIG welding preparation of layered bimetal ZChSnSb8Cu4/steel, which resulted in an improvement in the structural stability of the weldment. The temperature field and deformation of TIG-MIG hybrid welding of Babbitt alloy were studied under different controlled electrode spacings and TIG welding currents, and it was found that as electrode spacing increased, so did heat loss. Furthermore, with increased TIG welding current, compressive stress increased and tensile stress at the weld decreased, and the maximum thermal efficiency of welding was with a preheating current of 60 A.

摘要

针对巴氏合金与钢基体的轧机油膜轴承衬套之间结合界面结构薄弱的问题，利用Simufact Welding软件（2020版）对采用钨极惰性气体（TIG）-熔化极惰性气体（MIG）混合焊接工艺的ZChSnSb8Cu4/钢层状双金属进行了数值模拟。在本研究中，对TIG-MIG混合焊接工艺进行了模拟，以获得温度场和应力场分布。还利用计算结果分析了焊件的残余应力和变形。结果表明，与传统的MIG焊接制备层状双金属ZChSnSb8Cu4/钢相比，TIG-MIG混合焊接中的温度梯度和热应力降低，这导致焊件的结构稳定性得到改善。研究了在不同的控制电极间距和TIG焊接电流下巴氏合金TIG-MIG混合焊接的温度场和变形，发现随着电极间距的增加，热损失也增加。此外，随着TIG焊接电流的增加，压缩应力增加，焊缝处的拉伸应力减小，焊接的最大热效率出现在预热电流为60 A时。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b64e/10419655/24641865d4ba/materials-16-05346-g014a.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b64e/10419655/24641865d4ba/materials-16-05346-g014a.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b64e/10419655/3c4f946f877e/materials-16-05346-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b64e/10419655/f646dd4162c2/materials-16-05346-g003.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b64e/10419655/f095b187640c/materials-16-05346-g011.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b64e/10419655/24641865d4ba/materials-16-05346-g014a.jpg

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