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Abstract

Titanium has begun to be used widely in engineering applications due to their favourable properties such as good corrosion resistance, high specific strength and the highest strength to weight ratio of any metal. It has obtained widespread use in the aerospace and biomedical fields. However Titanium is highly reactive and has high hardness at elevated temperatures. This coupled with its low thermal conductivity and elastic modulus makes it a hard to machine material. In this paper an effort has been made to study and optimize the drilling process of a hole by making use of Abrasive jet machining (AJM) on a Ti-6Al-4V composite material.The effect of process parameters such as Pressure, Abrasive flow rate, standoff distance and material thickness on Material Removal Rate (MRR) and surface roughness has been studied. The experiments were designed and conducted on the basis of Taguchi’s experimental design of L16.Apart from single level optimization, multi optimization was also performed by making use of Genetic Algorithm (GA).


 

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