Optimization of stir casting process parameter on copper aluminium composite

Abstract

Stir casting technique is playing an essential role in synthesize of metal matrix composites with different compositions. In present investigation, the titanium carbide based copper aluminium 5052 composite is fabricated through stir casting route. The methodology of the work is to optimize the stir casting process parameters and surface analysis on copper aluminium composite. The various control factors were used to evaluate the tensile strength of the composite such as stirrer speed, time and furnace temperature. The compositions of alloying elements were validated through Energy Dispersive X-Ray Analysis (EDAX). The synthesized copper aluminium composite has hardness of 240HV and density of 7.82 g/cc. The casting surface was analyzed by scanning force microscopy (SFM). Taguchi optimization was used to found the desirable factor of stir casting process factors. The variance analysis was used to found the effect and contribution of different factors. The optimal tensile strength was validated at 700 °C of furnace temperature, 800 rpm of stirrer speed and 15 min of stirrer time. The average roughness of the surface is 57.75 nm.