Influence of process parameters on physical dimensions of AA6063 aluminium alloy coating on mild steel in friction surfacing

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Abstract

An attempt is made in the present study to obtain the relationships among process parameters and physical dimensions of AA6063 aluminium alloy coating on IS2062 mild steel obtained through friction surfacing and their impact on strength and ductility of the coating. Factorial experimental design technique was used to investigate and select the parameter combination to achieve a coating with adequate strength and ductility. Spindle speed, axial force and table traverse speed were observed to be the most significant factors on physical dimensions. It was observed that the thickness of the coating decreased as the coating width increased. In addition, the width and thickness of the coatings are higher at low and high torques. At intermediate torque values, when the force is high, the width of the coating is high, and its thickness is thin; and when the force is low, the width and thickness are low. The interaction effect between axial force (F) – table traverse speed (Vx) and spindle speed (N) – table traverse speed (Vx) produced an increasing effect on coating width and thickness, but other interactions exhibited decreasing influence. It has also been observed that sound coatings could be obtained in a narrow set of parameter range as the substrate-coating materials are metallurgically incompatible and have a propensity to form brittle intermetallics.

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Vijaya Kumar, B., Madhusudhan Reddy, G., & Mohandas, T. (2015). Influence of process parameters on physical dimensions of AA6063 aluminium alloy coating on mild steel in friction surfacing. Defence Technology, 11(3), 275–281. https://doi.org/10.1016/j.dt.2015.04.001

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