Abstract
The temperature distribution in monolayer-coated cutting tools is calculated with heat conduction model established based on non-Fourier law and obtained using Laplace transform. A number of different coating materials, starting from uncoated up to three coatings (TiN, TiC, Al2O3), in combination with the carbide, are calculated. Simulated cutting experiments are carried out to verify the temperature of this heat conduction model. An infrared camera attached on the fixture is used to research the heat conduction behavior on the rake face along coating thickness of cutting. The study results demonstrate that the calculated temperature shows a similar trend as the measured temperature when it is analyzed along the coating thickness direction. Coated tools are more effective than uncoated tools in diminishing temperatures during cutting. Al2O3 coating has better thermal barrier effect than TiN and TiC coatings.
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