Abstract
Metal Matrix Composites (MMCs) have evoked a keen interest in recent times for potential applications in aerospace and automotive industries owing to their superior strength to weight ratio and high temperature resistance. Stir casting technology along with additives is used to achieve uniform distribution of reinforcement within the matrix that affects the properties of composite material. The attempt has been made to develop aluminium based silicon carbide particulate AMCs and optimize the process parameters in photochemical machining of composites. In the present study, the effect of various control parameters such as time of etching, temperature of etchant and concentration of etchant on Material Removal Rate, Undercut and Etch factor in PCM of Al/Sic has been investigated by using integrated DoE and Gray relational analysis. Mathematical models relating to the performance of machining parameters have been formulated. The optimal machining parameter was observed at etching temperature of 60°C, etching concentration of 700 gm/lit. and etching time of 12 minutes. The result obtained after the confirmatory test prove that improvement in the machining quality will take place if the setting of the machining parameters done at optimum level.
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