Title: A study on effect of cutting conditions on surface finish in diamond turning process

Authors: Prakash Vinod; Charitha M. Rao; S. Narendranath; P.V. Shashi Kumar

Addresses: Central Manufacturing Technology Institute, Tumkur Road, Bangalore, 560022, India ' Central Manufacturing Technology Institute, Tumkur Road, Bangalore, 560022, India ' Central Manufacturing Technology Institute, Tumkur Road, Bangalore, 560022, India ' Central Manufacturing Technology Institute, Tumkur Road, Bangalore, 560022, India

Abstract: The single-point diamond turning (SPDT) process is capable of producing components with micrometre to submicrometre form accuracy and surface roughness in the nanometre range. The superior surface finish and form accuracy of SPDT allow the technology to be adopted widely for the manufacture of variety of precision mechanical and optical parts. However, the process parameters play an important role in obtaining desired higher surface finish. In this research work, Taguchi's orthogonal array is used for optimisation of process parameters of aluminium 6061 T6 material using an ultra-precision turning machine. The response variables measured to perform the analysis are surface roughness and vibration. The prediction of surface roughness has been carried by multiple regression analysis and artificial neural network techniques (ANN). A module has been developed and integrated with the machine for in-process estimation of surface finish using ANN.

Keywords: SPDT; single-point diamond turning; Taguchi methods; optimisation; vibration; MRA; multiple regression analysis; ANNs; artificial neural networks; prediction; cutting conditions; surface finish; orthogonal arrays; process parameters; aluminium; ultra-precision turning; surface roughness; surface quality.

DOI: 10.1504/IJPTECH.2015.070635

International Journal of Precision Technology, 2015 Vol.5 No.2, pp.114 - 127

Received: 15 Jul 2014
Accepted: 05 Jan 2015
Published online: 15 Jul 2015 *

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