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Performance Test of Cryogenically Treated and Coated Tungsten Carbide Cutting Inserts

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Abstract:

Production cost is dependent on the life of the Tool. Because of enormous heat generation during the material removal process, life of the tool decreases. Tool life will be enhanced by cryogenic treatment which minimises the temperature at tool tip interface. Taguchi technique was employed to get optimum number of experiments for turning white cast iron after the cryogenic treatment and before cryogenic treatment. The correlation between four main factors such as speed, feed, depth of cut, tool condition and responses such as surface roughness, tool tip temperature were analysed. Mathematical model was formulated for tool tip temperature, and surface roughness. The error for the mathematically formulated model was observed to be less than 5%.The present work indicates that cryogenically treated tool have better surface finish . From the anova analysis it is inferred that tool tip temperature and surface roughness substantially reduced while using cryogenically treated tool. It was observed that cutting forces was more influenced by cutting speed of the tool followed by tool condition. Hardness of the tool insert showed improvement because of coatings.

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Periodical:

Applied Mechanics and Materials (Volumes 813-814)

Pages:

575-580

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.813-814.575

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Online since:

November 2015

Authors:

Y.P. Deepthi*, K. Prakash Marimuthu, K. Raghavendra Ravi Kiran

Keywords:

Cryogenic Treatment, Multi-Layer Coating, Orthogonal Array, Regression Model

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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