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Your search keyword '"Kuar, Arunanshu S."' showing total 5 results
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5 results on '"Kuar, Arunanshu S."'

2. Integrating Taguchi Method with Desirability Function Analysis to Optimize the Laser Transmission Welding Process.

Author

Acherjee, Bappa, Kuar, Arunanshu S., Mitra, Souren, and Misra, Dipten

Subjects
TAGUCHI methods, LASER transitions, WELDING, MATHEMATICAL optimization, ORTHOGONAL arrays, STRENGTH of materials, ANALYSIS of variance
Abstract

This paper presents a hybrid approach based on Taguchi method and desirability function analysis to optimize the laser transmission welding process. The Taguchi L25 orthogonal array, for a four factor five level design, is used for the study. The welding parameters, namely: laser power, welding speed, stand-off distance and clamp pressure are optimized with considerations of multiple quality characteristics including weld strength and weld width. The multiple quality characteristics are then combined into a dimensionless measure of performance called composite desirability function to simplify the optimization procedure. Subsequently, analysis of variance (ANOVA) is performed to determine the significance of parameters and to identify the optimum levels of parameters based on the composite desirability function. The confirmation experiment at the optimal levels shows that the targeted multiple quality characteristics can be significantly improved to achieve more desirable levels. [ABSTRACT FROM AUTHOR]

Published
2010
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3. An experimental investigation on Nd:YAG laser microchanneling on polymethyl methacrylate submerged in water.

Author

Prakash, Shashi, Acherjee, Bappa, Kuar, Arunanshu S, and Mitra, Souren

Subjects
MATHEMATICAL optimization, METHYL methacrylate, EXPERIMENTAL design, REGRESSION analysis, MATHEMATICAL statistics
Abstract

In this research work, an experimental investigation has been carried out on underwater laser microchanneling on polymethyl methacrylate, using a pulsed Nd:YAG laser system. The underwater laser processing has been used to minimize the heat-affected zone, microcracking and burr formation around the microchannel. The process parameters that have been taken into consideration are lamp current, pulse frequency, pulse width and cutting speed. The microchannel characteristics that have been taken into account as responses are microchannel width, microchannel depth, burr width and burr height. Response surface methodology has been used to develop the mathematical relationships between the process parameters and microchannel characteristics. The adequacies of the models have been tested using analysis of variance. The interaction effects of process parameters on the microchannel characteristics have been analyzed and discussed. In addition to that, single-objective and multiobjective optimization of the process parameters have been performed to obtain desired values of microchannel characteristics. [ABSTRACT FROM AUTHOR]

Published
2013
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