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Volume 10 Issue 2 - April 2018

  • 1. Analysis of cutting force and surface roughness of both uncoated carbide and coated carbide cutting tool inserts using taguchi method.

    Authors : Manjunatha, R , Umesh C.k.

    Pages : 428-435

    DOI : http://dx.doi.org/10.21172/1.102.68

    Keywords : Cutting force, Surface roughness, Taguchi, ANOVA.

    Abstract :

    The objective of this paper is to obtain optimal setting of turning process parameters (cutting speed, feed rate and depth of cut) resulting in an optimal value of cutting force and surface roughness while machining EN-19 steel with both uncoated and coated carbide cutting tool. The effects of the selected process parameters on the cutting force and surface roughness have been accomplished using Taguchi’s design of experiments approach. The results indicate that the selected process parameters significantly affect the mean and variance of cutting force and surface roughness. The percent contributions of parameters in the ANOVA table for cutting force (FY) on uncoated carbide cutting tool the depth of cut (74.1%) has a major contribution than that of feed rate (18.5%) and cutting speed (3.3%). The cutting force (FY) for coated carbide cutting tool also depicts the similar trend where in the depth of cut (86.7%) has a major contribution than that of feed rate (7.1%) and cutting speed (4.6%). The surface roughness (Ra) for uncoated carbide cutting tool the feed rate (93.7%) has a major contribution than that of depth of cut (3.0%) and cutting speed (1.6%). While in case of coated carbide cutting tool the surface roughness (Ra), the depth of cut is having significant contribution of (39%) than that of cutting speed (31.7%) and the feed rate (25.1%). The ANOVA of S/N ratio for all the cases also exhibits similar trend. The predicted optimal range of cutting force for uncoated carbide cutting tool is (332 to 76 N), while for coated carbide cutting tool is (191 to 106 N), for surface roughness of uncoated carbide cutting tool is (2.232 to 0.804 µm) and for coated carbide cutting tool is (0.939 to 0.643 µm). The results have been validated by the confirmation of experiment.

    Citing this Journal Article :

    Manjunatha, R , Umesh C.k., "Analysis of cutting force and surface roughness of both uncoated carbide and coated carbide cutting tool inserts using taguchi method.", Volume 10 Issue 2 - April 2018, 428-435

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