A Cobalt Diffusion Based Model for Predicting Crater Wear of Carbide Tools in Machining Titanium Alloys

[+] Author and Article Information
Jiang Hua, Rajiv Shivpuri

1971 Neil Avenue, Room 210, Industrial, Welding and Systems Engineering, The Ohio State University, Columbus, Ohio 43210

J. Eng. Mater. Technol 127(1), 136-144 (Feb 22, 2005) (9 pages) doi:10.1115/1.1839192 History: Received September 10, 2003; Revised July 14, 2004; Online February 22, 2005
Copyright © 2005 by ASME
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Diffusion mechanism in cutting titanium alloys with tungsten carbide tool
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Diffusion and transport element in metal cutting process
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FEM model and Chip formation: (a) FEM mesh; (b) Chip morphology from FEM simulation; (c) Chip morphology from FEM simulation; Chip morphology from experiment
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Chip velocity along the tool rake face and the temperature over the tool rake face
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Predicted wear rate over the tool–chip interface (feed rate=0.127 mm/rev)
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Measured crater depth in cutting Ti-6Al-4V
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Comparison of predicted crater wear rate with the experimental results (Feed rate=0.127 mm/rev)
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Comparison of predicted crater wear rate with the experimental results (Feed rate=0.35 mm/rev)
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Crater wear at cutting speed of 120 m/min. (a) After 30 s, (b) After 60 s.
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Temperature distribution along rake face at various cutting speeds
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Chip velocity along rake face at various cutting speeds



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