Effects of ColdArc welding parameters on the tensile strengths of high strength steel plate investigated using the Taguchi approach

  • S. D. Sabdin Faculty of Manufacturing Engineering, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia Phone: +60192146061
  • N. I. S. Hussein Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia Phone: +60192146061
  • M. K. Sued Faculty of Manufacturing Engineering, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia Phone: +60192146061
  • M. S. Ayob Faculty of Manufacturing Engineering, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia Phone: +60192146061
  • M. A. S. A. Rahim Faculty of Manufacturing Engineering, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia Phone: +60192146061
  • M. Fadzil Centre of Advanced Manufacturing and Material Processing (AMMP Centre), Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
Keywords: ColdArc, Arc welding, GMAW, SPCC, Automotive

Abstract

The objective of this study is to investigate the effect of process parameters on ColdArc welding of cold rolled steel plate using 1.2 mm diameter mild steel welding wire. A Taguchi Design of Experiments (DOE) method with grey relational analysis approach was selected for data collection and optimization. 9 experiments were conducted following the L9 (33) Taguchi Orthogonal Array Design. The best result   from the experiments for tensile strength was obtained for welding parameters of 70 A (current), 17.6 V (voltage) and 800 mm/min welding speed. Based on the results, the Taguchi analysis predicted the optimised tensile strength would be obtained when the welding current, welding voltage and speed are at 70V, 17.6A and 0.6 m/min, respectively. Thus, most significant parameters for tensile properties of cold rolled steel is welding speed (37%), voltage (34 %) and current (28%). These factors are critical in determining the tensile strength, where increasing the welding speed reduces the heat input. However, decreasing the heat input by lowering the welding voltage resulted in bad weld bead formation.

Published
2019-06-28
How to Cite
Sabdin, S. D., Hussein, N. I. S., Sued, M. K., Ayob, M. S., A. Rahim, M. A. S., & Fadzil, M. (2019). Effects of ColdArc welding parameters on the tensile strengths of high strength steel plate investigated using the Taguchi approach. Journal of Mechanical Engineering and Sciences, 13(2), 4846 - 4856. https://doi.org/10.15282/jmes.13.2.2019.06.0403
Section
Article