EXPERIMENTAL INVESTIGATION ON HARD TURNING TO FIND OPTIMAL PROCESS PARAMETERS

MECHANICAL ENGINEERING

Hard turning is the one of the recent machining process which replaces the grinding process.The common objective of hard turning is to obtain better surface finish. In this work it focused to perform hard turning AISI52100 steel using tungsten carbide insert in a CNC turning center. The work is carried out experimentally using Taguchi L9 orthogonal array considering process parameters Cutting speed, feed and depth of cut and considering the responses surface finish, MRR and machining time. The Test of hypothesis of the model resulted satisfactorily for the fitness function. It is found that the feed rate is the predominant factor. Further a mathematical model developed using regression analysis which can be used for finding optimized values of cutting speed, feed and depth of cut to obtain surface finish, MRR and machining time using optimization techniques such as GA,PSO,ANN etc.,

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