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IJMERR 2022 Vol.11(11): 877-883

Optimization of Welding Parameters for Resistance Spot Welding with Variations in the Roughness of the Surface of the AISI 304 Stainless Steel Joint to Increase Joint Quality

Ariyanto 1, Hairul Arsyad2, Muhammad Syahid 2, and Ilyas Renreng 2
1. Politeknik ATI Makassar, Makassar, Indonesia
2. Department of Mechanical Engineering, Hasanuddin University, Gowa, Indonesia

Abstract—Resistance spot welding is widely used in the automobile, ship, and food industries. The durability and safety of the product being produced from these different industries depend on the spot welding joint’s connection quality, which makes it very important. However, there are a lot of poor quality resistance spot welding connections and this is caused by several factors, namely: material preparation, welding time, welding current, electrode pressure applied during welding, and post-welding treatment. This research was conducted to analyze how changing the joint surface’s roughness before welding and current parameters during welding could improve the quality of resistance spot welding joints. The experiments were conducted using a stainless steel plate material 304 with a size of 175x25 mm. Furthermore, mechanical testing was carried out the tensile shear and macrostructure using the Gwyddion software. The results showed that the parameters of the welding current, significantly affect the width of the welding nuggets and the quality of the spot welding resistance joint is improved by even the slightest roughness variation on the joint surface.

Index Terms—resistance spot welding, welding time, electrode pressure, nugget, surface roughness

Cite: Ariyanto, Hairul Arsyad, Muhammad Syahid, and Ilyas Renreng, "Optimization of Welding Parameters for Resistance Spot Welding with Variations in the Roughness of the Surface of the AISI 304 Stainless Steel Joint to Increase Joint Quality," International Journal of Mechanical Engineering and Robotics Research, Vol. 11, No. 11, pp. 877-883, November 2022. DOI: 10.18178/ijmerr.11.11.877-883

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