电焊机2024，Vol.54Issue(12)：96-100,5.DOI:10.7512/j.issn.1001-2303.2024.12.15
电极带对不锈钢电阻点焊温度场影响的数值模拟
Numerical Simulation of Effect of Electrode Strips on Temperature Field of Resistance Spot Welding of Stainless Steel
王薇 1许永仕 1杨志斌 2徐野3
作者信息
- 1. 青岛四机宏达工贸有限公司,山东 青岛 266111
- 2. 大连交通大学 材料科学与工程学院,辽宁 大连 116028
- 3. 中车青岛四方机车车辆股份有限公司,山东 青岛 266111
- 折叠
摘要
Abstract
This paper investigates the influence of electrode stripes on the temperature field of stainless steel resistance spot welding through the finite element simulation software ABAQUS.Resistance spot welding is a complex coupling process in-volving thermal,mechanical,and electrical physical fields,widely used in the connection of stainless steel vehicle body structures.Electrode stripe spot welding reduces indentation and protects the electrode by adding an electrode stripe between the electrode and the workpiece to be welded.Based on field parameters,this study adopts three-dimensional finite element modeling to analyze the effects of electrode stripes on the temperature field,nugget size,and indentation depth.The results show that the electrode stripe can delay the heat dissipation in the spot welding area,which is beneficial for the formation and growth of the nugget;at the same time,the electrode stripe can effectively increase the contact area of the interface,re-duce the pressure on the surface of the workpiece,and thus effectively reduce the indentation depth.Under the same spot welding parameters,the nugget formed by electrode stripe spot welding is slightly larger than that of conventional spot weld-ing.Through experimental verification,the simulation results are basically consistent with the experimental results,further confirming the positive role of electrode stripes in resistance spot welding.This study provides theoretical support for the formulation and optimization of the electrode stripe resistance spot welding process.关键词
电极带/有限元模拟/电阻点焊/温度场Key words
electrode strips/finite element simulation/resistance spot welding/temperature field分类
矿业与冶金引用本文复制引用
王薇,许永仕,杨志斌,徐野..电极带对不锈钢电阻点焊温度场影响的数值模拟[J].电焊机,2024,54(12):96-100,5.
