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M.Tech / M.E / PhD Thesis | Mechanical Engineering | India | Volume 6 Issue 6, June 2017 | Popularity: 6.6 / 10

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Comparative Assessment of Carbide Insert and Cermet Insert on Surface Roughness in Boring of ASTM A48 Grey Cast Iron

Ajay Sankar, Soumyalata.D

Abstract: Boring is the operation which is extensively used to enlarge and finish the internal holes. The operation requires minimum roughness value. In this experiment, the surface roughness value (Ra) was optimized by varying the spindle speed, depth of cut and feed. The Taguchi design was used to optimize the parameters, MINITAB 17 was the software used for optimization. The work material used for the experiment is ASTM A48 Grey cast iron. Two separate tools are used to bore the internal hole, which are Carbide tool and cermet tool. The Ra value was measured by using the instrument Surftest SJ 410, Mitutoyo. By Taguchi method it was found that Feed rate is the principal factor among the selected process parameters that influences the Ra value in boring operation. Cermet tool gives more surface finish or minimum value of Ra as compared to carbide tool. Thus it is more convenient for performing boring operation for the current material.

Keywords: ASTM A48 grey cast iron, Surface roughness, Boring, Cermet

Edition: Volume 6 Issue 6, June 2017

Pages: 440 - 445

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