Effects of Fusion Zone Size on Failure Modes and Mechanical Performance of Dual Phase (DP600) Steel Sheets Spot Welds.

Authors

  • Fadhel A. Hashim Martial Engineering department ,College of Engineering, University of Technology, Baghadad ,Iraq
  • Raid K. Salim Technical College ,Baghdad ,Iraq
  • Hassanen L. Jaber Mechanical Engineering department , Engineering College, University of Thi-Qar, Thi-Qar,Iraq

DOI:

https://doi.org/10.31663/utjes.v4i3.185

Keywords:

Dual-Phase Steels, Shear-Tension Test, Failure Mode and Resistance Spot Weld

Abstract

This paper examines the effects of fusion zone size on failure modes, quasi tension -shear test and energy absorption of resistance spot welds (RSW) of dual phase (DP600) steels. Optical microscopy  was  used for microstructure investigation. The results showed that some samples failed in pullout failure mode and other samples failed in interfacial failure mode and the failure was located at the base metal. The conventional weld size guidance of 4t0.5 and 5t0.5is not sufficient to produce nugget pullout failure mode for DP600 resistance spot welds.

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Published

2013-12-01

Issue

Vol. 4 No. 3 (2013)

Section

Articles

License

Copyright (c) 2013 The Author(s), under exclusive license to the University of Thi-Qar

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Effects of Fusion Zone Size on Failure Modes and Mechanical Performance of Dual Phase (DP600) Steel Sheets Spot Welds. (2013). University of Thi-Qar Journal for Engineering Sciences, 4(3), 46-59. https://doi.org/10.31663/utjes.v4i3.185

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