ABSTRACT

In the aviation industry, aluminium and its alloys are found to be an excellent material because of its low weight to high strength ratio. In the current field of manufacturing, high speed machining (HSM) is gaining popularity because of its precision, accuracy and greater productivity. The HSM of aluminium alloys is challenging, making it essential to provide optimized process parameters while performing the machining operation. Few studies have been identified in the area of HSM of aluminium alloy in which a spindle speed is maintained above 5000 rpm. Moreover, optimization of parameters involving responses having contradictory behaviour to one another is a challenge for the machinist. A series of experiments was performed on aluminium alloy BSL 165 using Box Behnken design (BB). The experimental data attained is used for developing a relationship with average surface roughness (Ra) and material removal rate (MRR). This chapter provides a vivid picture toward arriving at the optimized levels of machining parameters in conditions as stated above. It also explains in detail the individual effect and interaction effects of the machining parameters on the responses.