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Your search keyword '"Kuar, Arunanshu S."' showing total 3 results
Start Over Author "Kuar, Arunanshu S." Topic welding
3 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. Modeling and analysis of simultaneous laser transmission welding of polycarbonates using an FEM and RSM combined approach

Author

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

Subjects
*MATHEMATICAL models, *LASER beams, *WELDING, *POLYCARBONATES, *FINITE element method, *TRANSIENTS (Dynamics), *SIMULATION methods & models, *MATHEMATICAL optimization
Abstract

Abstract: In this paper, simultaneous laser transmission welding process is systematically investigated via process modeling, using an FEM and RSM combined approach. The objective of the present research is to study the effects of process parameters on the temperature field and weld bead dimensions. The thermal field is simulated by solving a three dimensional transient heat diffusion equation with temperature dependent material properties using the ANSYS® multi-physics. Response surface methodology is then applied for developing mathematical models based on simulation results. The second order equations developed by RSM can predict the values of the responses with significant accuracy. The effect of parameters and their interactions on the responses are studied using the developed response surface models. The mathematical models are further used in search of the optimal process window for obtaining an acceptable weld. The graphical optimization results into a couple of overlay contours plots, which allow quick visual inspection of the area of feasible response values in the factor space to choose the favorable welding parameter combination. [Copyright &y& Elsevier]

Published
2012
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