Journal
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
Volume 28, Issue 7-8, Pages 688-693Publisher
SPRINGER LONDON LTD
DOI: 10.1007/s00170-004-2429-4
Keywords
neural network; prediction; surface roughness; turning
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In this study, the prediction of surface roughness heights R-a and R-t of turned surfaces was carried out using neural networks with seven inputs, namely, tool insert grade, workpiece material, tool nose radius, rake angle, depth of cut, spindle rate, and feed rate. Coated carbide, polycrystalline and single crystal diamond inserts were used to conduct 304 turning experiments on a lathe, and surface roughness heights of the turned surfaces were measured. A systematic approach to obtain an optimal network was employed to consider the effects of network architecture and activation functions on the prediction accuracy of the neural network for this application. The reliability of the optimized neural network was further explored by predicting the roughness of surfaces turned on another lathe, and the results proved that the network was equally effective in predicting the R-a and R-t values of the surfaces machined on this lathe as well.
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