Abstract
Friction Drilling is a special drilling technique that utilises the Frictional heat generated between the rotating conical drill bit and the stationary workpiece to soften and penetrate the work. The material which interests our study is the metal matrix composite Copper Silicon carbide (CuSiC) due to its high thermal conductivity which would accelerate the drilling process. Friction drill bits of various cone angles are made out of Tungsten High speed steel. Friction drill bits of various cone angles are made out of Tungsten High speed steel. The purpose of our study is to analyse the influence of the drilling parameters: Friction angle, Feed rate, Workpiece thickness and Spindle speed on Thrust force and Torque both graphically and by means of employing Taguchi's parametric design approach. Experimentation is to be conducted using Taguchi's orthogonal array and the results have to be assessed by analysis of variance (ANOVA).
Highlights
Drilling is one of the widely used machining processes
Thrust forces show an increasing trend with increase in feed rate as the tool must withstand vibrations which increase with the feed rate
It is observed that thickness of the work piece has a dominating effect on thrust force as greater forces are needed to penetrate thicker work
Summary
Almost 75% of the products need some sort of hole making process, drilling is inevitable. A bush is formed around the hole strengthening it and hole quality is on par when compared to the conventional drilling. It is named as flow drilling, friction stir drilling or thermal drilling. Copper, titanium are widely used as matrices. Reinforcing ceramic particles in the metal matrices result in better wear resistance, strength, rigidity modulus and make them reliable for high temperature applications. SiC reinforcements are widely used due to their high strength, hardness, stiffness, low density and easy availability [2]. Copper matrix MMC with SiC particles is a better candidate due to
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