Journal
MATERIALS & DESIGN
Volume 28, Issue 5, Pages 1618-1622Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2006.02.006
Keywords
hard turning; Taguchi techniques; experimental design; analysis of variance
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Due to their high hardness and wear resistance, Al2O3-based ceramics are one of the most suitable cutting tool materials for machining hardened steels. However, their high degree of brittleness usually leads to inconsistent results and sudden catastrophic failures. This necessitates a process optimization when machining hardened steels with Al2O3 based ceramic cutting tools. The present paper outlines an experimental study to achieve this by employing Taguchi techniques. Combined effects of three cutting parameters, namely cutting speed, feed rate and depth of cut on two performance measures, flank wear (VB) and surface roughness (R-a), were investigated employing an orthogonal array and the analysis of variance (ANOVA). Optimal cutting parameters for each performance measure were obtained; also the relationship between the parameters and the performance measures were determined using multiple linear regression. (c) 2006 Elsevier Ltd. All rights reserved.
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