Title: Multi-response optimisation of Nd:YAG laser micro-machining of die steel using Response Surface Methodology

Authors: A.S. Kuar, S.K. Dhara, S. Mitra

Addresses: Production Engineering Department, Jadavpur University, Kolkata 700 032, India. ' Production Engineering Department, Jadavpur University, Kolkata 700 032, India. ' Production Engineering Department, Jadavpur University, Kolkata 700 032, India

Abstract: In the present research Response Surface Methodology (RSM) based parametric analysis has been performed to investigate the change in the responses with the change in input parameters and to determine the optimal setting of process parameters such as pulse frequency, pulse width, lamp current and assist air pressure for achieving minimum height of recast layer and maximum depth of groove of the micro-groove machined. The regression model generates the response surface. The optimum parameter setting for both individual as well as combined responses has also been evaluated.

Keywords: LBM; laser beam machining; laser micromachining; RSM; response surface methodology; depth of groove; RCL; recast layers; multi-response optimisation; die steel; pulse frequency; pulse width; lamp current; assist air pressure.

DOI: 10.1504/IJMTM.2010.034283

International Journal of Manufacturing Technology and Management, 2010 Vol.21 No.1/2, pp.17 - 29

Published online: 31 Jul 2010 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article