Optimization of Surface Roughness of Bearing Steel during CNC Hard Turning Process

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2014 by IJETT Journal
Volume-17 Number-4
Year of Publication : 2014
Authors : Rony Mohan , Josephkunju Paul C , George Mathew


Rony Mohan , Josephkunju Paul C , George Mathew. "Optimization of Surface Roughness of Bearing Steel during CNC Hard Turning Process", International Journal of Engineering Trends and Technology (IJETT), V17(4),173-175 Nov 2014. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group


AISI 52100 is mainly used to manufacture bearings. The process for manufacturing bearing includes turning process followed by three different stages of grinding operation. Nowadays grinding operation are replaced by hard turning process and it has been proved that hard turning process are 30% cost effective. The machining parameters (cutting speed, feed rate, depth of cut) are optimized with considerations of surface roughness. Taguchi’s concepts of orthogonal arrays, signal to noise (S/N) ratio and ANOVA are used to optimize the surface roughness for high speed CNC turning process.


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CNC hard turning, surface roughness, AISI 52100, Taguchi, ANOVA.