OPTIMAL TENSILE-SHEAR STRENGTH OF GALVANIZED/MILD STEEL (SPCC-SD) DISSIMILAR RESISTANCE SPOT WELDING USING TAGUCHI DOE

Authors

  • Sukarman - ᵃDepartement of Mechanical Engineering, Universitas Buana Perjuangan, Karawang, 41361, Karawang, West Java, Indonesia ᵇbDepartement of Mechanical Engineering, Sebelas Maret University, Surakarta, Jl. Ir Sutami No.36, Kentingan, Kec. Jebres, Central Java, 57126, Indonesia https://orcid.org/0000-0001-7464-6099
  • Khoirudin ᵃDepartement of Mechanical Engineering, Universitas Buana Perjuangan, Karawang, 41361, Karawang, West Java, Indonesia ᵇDepartement of Mechanical Engineering, Sebelas Maret University, Surakarta, Jl. Ir Sutami No.36, Kentingan, Kec. Jebres, Central Java, 57126, Indonesia https://orcid.org/0000-0003-3646-2138
  • Dodi Mulyadi Departement of Mechanical Engineering, Universitas Buana Perjuangan, Karawang, 41361, Karawang, West Java, Indonesia https://orcid.org/0000-0002-7539-9584
  • Nana Rahdiana Departement of Industrial Engineering, Universitas Buana Perjuangan, Karawang, 41361, Karawang, West Java, Indonesia https://orcid.org/0000-0002-1882-3959
  • Amri Abdulah ᵇDepartement of Mechanical Engineering, Sebelas Maret University, Surakarta, Jl. Ir Sutami No.36, Kentingan, Kec. Jebres, Central Java, 57126, Indonesia ᵈDepartement of Mechanical Engineering, Sekolah Tinggi Teknologi Wastukancana, Purwakarta, 41114, West Java, Indonesia
  • Rohman - Departement of Mechanical Engineering, Sekolah Tinggi Teknologi Wastukancana, Purwakarta, 41114, West Java, Indonesia
  • Choirul Anwar Departement of Mechanical Engineering, Sekolah Tinggi Teknologi Wastukancana, Purwakarta, 41114, West Java, Indonesia

DOI:

https://doi.org/10.11113/jurnalteknologi.v85.17193

Keywords:

Hot-dipped galvanized, Resistance spot welding, Signal to noise ratio, Taguchi method, T-S strength

Abstract

This paper demonstrates the optimization of resistance spot welding on different connections of galvanized steel sheets and low carbon steels. The zinc coating on galvanized steel sheets will have an effect to reduce the welding ability in the resistance welding process. The practical Taguchi experimental technics were used by implemented adequately to optimize input factors, namely squeezing time, welding current, welding time and holding time. Statistical software implemented an analysis of variance (ANOVA) and multilinear regression to investigate and evaluate the significant input factors and compare them with the experimental output factors of resistance spot welding. The 'signal to noise ratio' (S/N ratio) results shows that the welding time and the welding current are the most significant factors on the output. The delta values ​​of welding time and welding current are 3.15 and 2.25, respectively. The ANOVA results showed that welding current and welding time are the most contributing factors by 23.5% and 51.4%, respectively. Taguchi recommends an optimal squeezing time of 20 cycles, a welding current of 27 kA, a welding time of 36 cycles, and a hold/cooling time of 15 cycles. The highest output reaches a tensile shear strength of 5762.04 N on the third iteration. The present research has successfully identified significant variable inputs for resistance spot welding, namely welding current and welding time. In the future, the relevant research may use our corresponding results to improve the RSW practical procedure for other significant impacts.

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Published

2023-06-25

Issue

Vol. 85 No. 4: July 2023

Section

Science and Engineering

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How to Cite

OPTIMAL TENSILE-SHEAR STRENGTH OF GALVANIZED/MILD STEEL (SPCC-SD) DISSIMILAR RESISTANCE SPOT WELDING USING TAGUCHI DOE. (2023). Jurnal Teknologi, 85(4), 167-177. https://doi.org/10.11113/jurnalteknologi.v85.17193