Achieving Optimal Process Parameters during Hard Turning of AISI 52100 Bearing Steel Using Hybrid GRA-PCA

Abstract:

In the present work hard turning of AISI 52100 steel has been performed using Polycrystalline cubic boron nitride (PCBN) tools. The input parameters considered are cutting speed, feed, depth of cut, nose radius and negative rake angle and the measured responses are machining force and workpiece surface temperature. Experiments are planned as per Central Composite Design (CCD) of Response Surface Methodology (RSM). The effect of input parameters and their interactions are discussed with main effects plot. Further, the multi-objective optimization scheme is proposed by adopting Grey Relational Analysis (GRA) coupled with Principle Component Analysis (PCA). Results demonstrated that speed is the most significant factor affecting the responses followed by negative rake angle, feed, depth of cut, and nose radius. The optimum cutting parameters obtained are cutting speed 1000 rpm, feed 0.02 mm/rev, depth of cut 0.5 mm, Nose radius 1 mm and Negative rake angle 5^o.

• Periodical: Key Engineering Materials (Volume 818)
• Pages: 87-91
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.818.87
• Online since: August 2019
• Authors: P. Umamaheswarrao*, D. Ranga Raju, K.N.S. Suman, B. Ravi Sankar
• Keywords: AISI 52100 Steel, Hard Turning, Machining Force, Response Surface Method, Workpiece Surface Temperature

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