The Effect Of Process Parameters On Spot Welds Strength Of 6061 Aluminium Alloy

Shahdan Ajib , Omar (2011) The Effect Of Process Parameters On Spot Welds Strength Of 6061 Aluminium Alloy. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Resistance spot welding (RSW) is a welding process that joint sheet metal pieces together by applying pressure and passing a large current through localized area while the sheets are fixed together. The aim of this project is to investigate the microstructural samples and characteristics of resistance spot welds on aluminum sheet metal and examine the mechanical behavior at different welding parameters. It also evaluates the hardness of the samples in order to determine the influence of welding parameters. Aluminium 6061 will be used. Lap joining of plates 1mm and 1.5mm in thickness will be weld by using (SSW-2040) with different electrode force, welding current and welding time. Microstructure analysis will carried out. Mechanical properties will be evaluated in tensile tests and hardness test. All the data will be collected and analyzed. Hardness will probably show high value at weldment area. Base on the finding, tensile test show at 1.0mm strength was better than 1.5mm thickness. The parameter of resistance spot welding must be proper decided in order to get the better result. Improper control the parameter of welding will be affected on the result entirely.

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