Effect of Resistance Spot Welding Parameters on the Austenitic Stainless Steel 304 Grade by Using 2³ Factorial Design

Abstract:

This research was study the effect of resistance spot welding process on physical properties. The specimen was austenitic stainless steel sheet of 1 mm. The experiments with 2³ factorial design. The factors used in this study are welding current at 8,000 and 12,000 Amp, welding time at 8 and 12 cycle and electrode force were set at 1.5 and 2.5 kN. The welded specimens were tested by tensile shear testing according to JIS Z 3136: 1999 and macro structure testing according to JIS Z 3139: 1978. The result showed that the welding current, welding time and electrode force had interaction on tensile shear and nugget size at 95% confidential (P value < 0.05). Factors affecting the tensile shear are the most welding current of 12,000 amp., welding time of 8 cycle and electrode force of 2.5 kN. were tensile shear of 9.83 kN. The nugget size was maximum at 7.15 mm. on welding current of 12,000 amp., welding time of 12 cycle and electrode force of 1.5 kN This research can bring information to the foundation in choosing the appropriate parameters to resistance spot welding process.

• Periodical: Advanced Materials Research (Volume 216)
• Pages: 666-670
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.216.666
• Online since: March 2011
• Authors: Prachya Peasura
• Keywords: 2³ Factorial Design, Austenitic Stainless Steel, Resistance Spot Welding (RSW)

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