Abstract

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COMPARISON BETWEEN FRICTION STIR WELDING (FSW) AND FRICTION STIR PROCESSING (FSP) OF AA5086 ALUMINIUM ALLOY

Muhsin J. Jweeg, Ayad M.Takhakh, Nawzad K.Kareem


In this work, an investigation has been carried out on Friction stir welding (FSW) and friction stir processing (FSP) of 3mm thick plates of AA5086-H32 aluminium alloy using high carbon high chromium alloy steel tool with a thread tool pin shape . The process variable are welding type (FSW and FSP) and rotational speed which consist of three different rotational speed (750, 1000 and 1250) rpm and traverse speed remand constant at 40mm/min. It has been observed that the microstructural grain size of (FSP) welded joints is slightly finer than (FSW) joints. Also it was found that (FSW) welded joints have shown lower tensile strength, bending strength, percentage of elongation and Also lower hardness value as compared to the (FSP) welded joints and this trend is common for all welded joints.