Optimisation of laser cutting of SS 430 plate using advanced Taguchi entropy weighted-based GRA methodology Online publication date: Sun, 01-Jul-2018
by K. Velayutham; K. Venkadeshwaran; G. Selvakumar
International Journal of Mechatronics and Manufacturing Systems (IJMMS), Vol. 11, No. 2/3, 2018
Abstract: SS 430 thin plates are extensively used in medical equipment, decorative products and kitchen appliances. In this research work, the 16 straight cutting profiles on SS 430 plates were done by using Nd:YAG laser cutting processes. Experimental works were conducted to examine the influence of processing conditions of laser cutting such as power, cutting velocity and gas pressure on response characteristics like heat affected zone (HAZ) size, recast layer thickness and micro hardness. A novel integrated Taguchi-entropy weighted-based grey relational analysis (GRA) approach has been employed to attain the supreme qualities of laser cutting in this effort. The entropy method is used to measure the weight to each response characteristics. Additionally, ANOVA technique is used to identify the significant process parameters. The obtained results point out that these approaches are convincing to optimise the laser cutting practices.
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