Optimization of Resistance Spot Welding on Aluminum Magnesium 5052 Grade with 2³ Factorial Designs

Abstract:

Aluminum magnesium alloys 5052 grade are also attractive in these fields due to their lower density and high specific strength. Therefore, it can be expected that the joining of aluminum alloys and magnesium alloys needs to be solved in industrial application. This research was study the effect of resistance spot welding (RSW) parameter on mechanical properties and macro structure. The specimen was aluminum magnesium 5052 grade sheet of 1 mm thickness. This experimental study aims at 2³ factorial design optimizing various RSW parameters including welding current at 14,500 and 15,500 amp, welding time at 50 and 60 cycle and electrode force were set at 1.2 and 2.2 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 both of 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 optimum were welding current of 14,500 amp. , welding time of 60 cycle and electrode force of 1.2 kN. This research can bring information to the foundation in choosing the appropriate parameters to RSW process.

• Periodical: Advanced Materials Research (Volumes 622-623)
• Pages: 340-343
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.622-623.340
• Online since: December 2012
• Authors: Prachya Peasura
• Keywords: 2³ Factorial Designs, Aluminum Magnesium, Optimization, Resistance Spot Welding

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