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All Journal Jurnal Teknik Mesin Mechanical Xplore
Cepi Budiansyah, Ade
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Automotive Engineering Control & Systems Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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The Box-Behnken Response Surface Methodology Approach to Optimize Tensile Strength Load in Resistance Spot Welding Using SPCC-SD Steel Mulyadi, Dodi; Amir, Amir; Cepi Budiansyah, Ade; Sukarman, Sukarman; Khoirudin, Khoirudin; Arif Wibowo, Ludvi; Kumbarasari, Shanti
Jurnal Teknik Mesin Mechanical Xplore Vol 4 No 2 (2024): Jurnal Teknik Mesin Mechanical Xplore (JTMMX)
Publisher : Mechanical Engineering Department Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jtmmx.v4i2.6090

Abstract

This article describes an experimental investigation into optimizing spot welding resistance (RSW) using a spot-welding machine equipped with a dual-electrode Pressure Force System (PFS). The optimization procedure entails the incorporation of SPCC-SD (JIS G 3141), a low-carbon steel that finds extensive application in the automotive sector. With the widespread use of SPCC-SD steel, RSW is an essential process in the automotive industry for assembling body components. This study employs the Box-Behnken Response Surface Methodology (Box-Behnken-RSM) to optimize the tensile strength load (TS-load), a critical parameter in RSW, through a meticulous analysis of the interplay between Holding Time, Squeezing Time, Welding Current, and Welding Time. Through the methodical design of experiments, the collection of Tensile Strength Load data, and the application of statistical modeling via RSM, this study employs SPCC-SD steel to determine the optimal values for these variables in RSW. The results above readily offer a valuable understanding of the most significant determinants and their interrelationships, thus facilitating advancements in welding methodologies and quality control in the automotive manufacturing sector. This study employs the Box-Behnken Response Surface Methodology to investigate the impacts and interrelationships of different parameters thoroughly. It aims to enhance the TS-load using SPCC-SD steel during the resistance spot welding procedure. This research contributes to advancing welding methodologies employed in the automotive manufacturing sector.
Optimizing Spring-back and Spring-go in Vee-bending of SCGA340BHX Galvanized Steel: A Taguchi Approach Susilo, Hendri; Supriyanto, Danang; Nur Widyartha, Yogi; Khoirudin, Khoirudin; Sukarman, Sukarman; Hakim, Afif; Cepi Budiansyah, Ade; Suhara, Ade; Rahdiana, Nana; Hananto, Agus
Jurnal Teknik Mesin Mechanical Xplore Vol. 6 No. 1 (2025): Jurnal Teknik Mesin Mechanical Xplore (JTMMX)
Publisher : Mechanical Engineering Department Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jtmmx.v6i1.10147

Abstract

Spring-back and spring-go are critical elastic recovery phenomena in sheet metal forming that affect the angular precision of bent components. This study investigates the influence of punch angle, die opening, and punch speed on these behaviors during the Vee-bending process of SCGA340BHX high-strength galvanized steel. A Taguchi design of experiments with an L8 orthogonal array was applied, and spring-back angles were measured and analyzed using the “smaller-is-better” signal-to-noise (S/N) ratio criterion. The results reveal that punch angle is the most influential parameter governing spring-back and spring-go tendencies, followed by die opening and punch speed. A punch angle of 50° and a die opening of 35 mm produced the highest average spring-back (3.03°), while spring-go behavior was observed primarily at higher punch speeds (35–40 mm/min). The study further confirmed the inverse relationship between bending force and spring-back, with lower forming forces correlating to greater elastic recovery. These findings provide a comprehensive understanding of the interdependence between geometric and kinematic factors in elastic recovery phenomena, offering quantitative insights for optimizing Vee-bending operations involving thin, high-strength steel.
Co-Authors Afif Hakim Amir Amir Arif Wibowo, Ludvi Dodi Mulyadi Hananto, Agustia Khoirudin Khoirudin, Khoirudin Kumbarasari, Shanti Nur Widyartha, Yogi Rahdiana, Nana Suhara, Ade Sukarman Sukarman Supriyanto, Danang Susilo, Hendri