Optimization of Process Parameters in Hot Forging of Medium Carbon Micro-Alloyed Steel

Abstract:

In this paper, a combination of taguchi method and grey taguchi method has been studied for optimization of the hot forging of medium carbon micro-alloyed (MC–MA) steel. The influence of forging parameters viz. forging temperature, percentage reduction and cooling rate are investigated for the responses tensile strength and impact strength after forging operation. In order to optimize the responses simultaneously, Grey Relational Analysis (GRA) is employed along with Taguchi method. Through GRA, grey relational grade is used as a performance index to determine the optimal setting of process parameters for above mentioned responses simultaneously. Analysis of variance (ANOVA) is employed to determine significant parameters. The results indicated that the cooling rate has a remarkable effect on the tensile strength and impact strength at room temperature. Optimization of the parameters simultaneously leading to a higher tensile strength and impact strength and it is also verified through a confirmation experiment for validation of these results.

• Periodical: Applied Mechanics and Materials (Volumes 813-814)
• Pages: 563-568
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.813-814.563
• Online since: November 2015
• Authors: Pinaki Talukdar, Raj Kumar Ohdar, Balbir Singh, Md Israr Equbal
• Keywords: Grey Relational Analysis, Hot Forging, Micro-Alloyed, Taguchi Method

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