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Numerical and experimental studies on the explosive welding of plates with different initial strength

  • Xiang-yu Zeng
  • Xiao-jie LiEmail author
  • Xiang Chen
  • Xiao-hong Wang
  • Hong-hao Yan
Research Paper
  • 7 Downloads

Abstract

In this paper, the effect of initial tensile strength on the explosive welding interface morphology and welding quality was studied. The plates with different initial tensile strength were fabricated via the explosive welding method under the same parameters. Microstructure and hardness at the interface were obtained. According to the characterization, the results demonstrated the morphology of the cross sections is greatly influenced by the strength of the plates. Microhardness analysis confirms that the explosive joining section has work hardening and thermal softening effect occurred. Furthermore, the explosive welding process was numerically simulated by AUTODYN and the temperature distribution of the interfaces was obtained, and it reveals that the strength is negligible and the interface can only be considered as incompressible flow when the pressure ratio \( \overline{\sigma} \) is large enough. Otherwise, the strength of the plates cannot be neglected.

Keywords

Explosive welding Material initial strength Numerical simulation Wavy interface 

Notes

Funding information

This work was supported by the Natural Science Foundation of China (Nos. 11672067 and 11672068).

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Copyright information

© International Institute of Welding 2019

Authors and Affiliations

  1. 1.Department of Engineering MechanicsDalian University of TechnologyDalianPeople’s Republic of China
  2. 2.State Key Laboratory of Structural Analysis for Industrial EquipmentDalian University of TechnologyDalianPeople’s Republic of China

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