Journal
INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE
Volume 49, Issue 7-8, Pages 619-624Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ijmachtools.2009.01.010
Keywords
Thermal conductivity; Cutting temperature; Diffusion layer
Funding
- National Basic Research Program of China [2009CB724401]
- National Great Project of Scientific and Technical Supporting Programs of China during the 11th Five-year Plan [2008BAF32B01]
- National High Technology Research and Development Program of China [2008AA042405]
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A novel approach to the prediction of cutting temperatures within coated tools is presented in this paper. The diffusion layer that results thermal resistance between coating and its substrate is considered. The diffusion layer model was firstly developed. Equations for effective thermal conductivity of the diffusion layer were then derived based on three structural models such as the Maxwell-Eucken 1 model, the series model, and the equivalent layer model. The influences of diffusion layer on cutting temperatures of coated tools were analyzed. Results indicate that the calculated temperature with the new model is more accurate than that of the conventional one compared with measured temperature. The diffusion layer model developed in this work provides a methodology for the design and choice of coated tools in manufacturing industries. (C) 2009 Elsevier Ltd. All rights reserved.
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