FABRICATION OF AA-6063/SIC COMPOSITE MATERIAL BY USING FRICTION STIR PROCESSING.

Abstract

Friction stir processing (FSP) is a solid state process known for its ability to modify microstructures and provide improved properties over conventional processing technologies. The development of friction stir processing (FSP) is based on the friction stir welding (FSW) technology. Both FSW and FSP have the same process principle and share the same facilities. In the present study, an attempt is made to fabricate the AA6063/SiC composite material by doping SiC with help of Friction Stir Processing. The selected material was Friction stir processed at constant tool rotational and welding speed of 1400 rpm and 65 mm/min respectively. High chrome high carbon non-consumable cylindrical left handed thread pin profile tool with 4.8 mm pin length and 6 mm pin diameter was used to generate frictional heat and plastic deformation. SiC particles are doped in a series of holes of 2 mm diameter and 4.8 depth made in AA 6063 plate for fabrication of composite. The mechanical and metallurgical properties of fabricated composite material were investigated. From results it was observed that fabricated AA6063/Sic composite material have better tensile strength and micro hardness as compare to base material. Doping of SiC particles during Friction Stir Processing causes grain refinement. Copy Right, IJAR, 2017,. All rights reserved.