Title: Numerical investigation on welding process parameters optimisation using multi-objective optimisation technique

Authors: Mark Christhian Barrueta Pinto; Yongbo Li

Addresses: School of Business, Universidad Peruana de Ciencias Aplicadas (UPC), Lima, 15023, Peru ' School of Economics and Management, China University of Petroleum (East China), Qingdao, 266580, China

Abstract: This study considers one such successful application of multi objective optimisation technique on CO₂ laser beam welding process parameters with cupronickel as a material. Though several process parameters exist within the literature, only most cited parameters are considered namely focal position, welding speed, welding current and welding angle. In initial phase the experimental procedure was conducted with CO₂ laser beam welding, further the obtained outputs given as inputs to the numerical evaluation. The technique for order of preference by similarity to ideal solution (TOPSIS) has been considered as solution methodology for this study to identify the optimised process parameters. Several mechanical properties are considered as the multi-objective functions for this study which includes impact, elongation, hardens, tensile strength and yield strength. With the assistance of this multi objective optimisation, the researchers, shed light on one of the new applications of welding technologies.

Keywords: multi-objective optimisation; parameter optimisation; CO₂ laser beam welding; TOPSIS.

DOI: 10.1504/IJAOM.2020.109788

International Journal of Advanced Operations Management, 2020 Vol.12 No.3, pp.195 - 210

Received: 15 Dec 2019
Accepted: 13 Jan 2020
Published online: 24 Sep 2020 *

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