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Proceedings Paper

Study on the wear mechanism and tool life of coated gun drill
Author(s): Yongguo Wang; Xiangping Yan; Xiaoguang Chen; Changyu Sun; Xi Zhang
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Paper Abstract

A comprehensive investigation of the wear progress for solid carbide gun drill coated with TiAlN by machining steel S48CSiV at a cutting speed of 12.66m/s has been performed. Cutting torque was recorded and tool wear mechanism was studied. The surface morphology of the tool and the chip have been studied by using scanning electron microscopy (SEM) and energy dispersive spectrometer (EDS). Results show that cutting torque fluctuates between 3% and 5% when machining less than 130 pieces of crankshaft, but it will sharply increased to nearly 18% while machining 150 pieces of crankshaft because the coating is damaged and the wear becoming severity. The dominant wear mechanisms are adhesive wear and chemical dissolution wear.

Paper Details

Date Published: 24 May 2011
PDF: 7 pages
Proc. SPIE 7997, Fourth International Seminar on Modern Cutting and Measurement Engineering, 799704 (24 May 2011); doi: 10.1117/12.885573
Show Author Affiliations
Yongguo Wang, Shanghai Univ. (China)
Xiangping Yan, Shanghai Univ. (China)
Xiaoguang Chen, Shanghai Univ. (China)
Changyu Sun, Shanghai Univ. (China)
Xi Zhang, Shanghai Univ. (China)

Published in SPIE Proceedings Vol. 7997:
Fourth International Seminar on Modern Cutting and Measurement Engineering
Jiezhi Xin; Lianqing Zhu; Zhongyu Wang, Editor(s)

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