Contact Pressure and Residual Strain of Resistance Spot Welding on Mild Steel Sheet Metal

Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)

Abstract

Coupled electrical–thermal and thermo-elastic–plastic analyses were performed to analyze the behavior of the mechanical features during the resistance spot welding (RSW) process including the squeeze, heating, and hold steps, and to prepare for further structural analysis for large, complex structures with a large quantity of resistance spot welds. A two-dimensional axisymmetric thermo-elastic–plastic FEM model was developed and analyzed in the commercial FEM program, ANSYS. The analysis was based on the transient temperature field obtained from a transient electrical–thermal simulation of the RSW process conducted by the authors. The distribution and change of the contact pressure at the electrode–workpiece interface and faying surface, the residual stress, and the residual plastic strain distribution of the weldment were obtained through the analysis.

Keywords

Resistance spot welding Temperature field Contact pressure Residual strain 

Notes

Acknowledgments

Yuanxun Wang: Project supported by the financial support from the National Natural Science Foundation of China (11072083).

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Copyright information

© The Minerals, Metals & Materials Society 2018

Authors and Affiliations

  1. 1.School of Mechanical Science and EngineeringHuazhong University of Science and TechnologyWuhanChina
  2. 2.School of Civil Engineering and MechanicsHuazhong University of Science and TechnologyWuhanChina
  3. 3.HangYu Aerospace Life-Support Industries Co LtdXiangyangChina

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