Prediction of surface roughness for turning operation of aluminium alloys using artificial neural networks

Rockey Kumar, Sudipto Chaki

Abstract


Present paper attempted to predict surface roughness obtained from turning process of Al 6063 aluminium alloy using different algorithms of Back Propagation Neural Network (BPNN) models. A full factorial experimentation (33) has been conducted with controllable process parameters as cutting speed (rpm), feed (mm/min) and depth of cut (mm) respectively to generate the training dataset. Average surface roughness value, Ra is considered as output parameters. 28 networks have been trained and tested using BPNN with Levenberg Marquardt (LM) algorithm and BPNN with Bayesian Regularization. Among all, 3-4-1 network trained and tested using BPNN with LM is found to produce best prediction capability with minimum value of Maximum absolute % prediction error of 4.21% and considered as best network for prediction of surface roughness.


Keywords


Turning, Surface Roughness, Back Propagation Neural Network (BPNN), BPNN with Levenberg Marquardt algorithm, BPNN with Bayesian Regularization

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References


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