Abstract
Two general boundary element techniques are developed for determining the temperature fields in materials containing thin coatings. The first method utilizes a two-dimensional multi-domain approach that is accurate over a wide range of coating thicknesses. The second technique, which is based on a more computationally efficient single-layer approximation, is geared towards applications where the coating thickness is very small. After initially being verified with two simplified test cases, both methods are used to determine the temperature fields of coated and uncoated metal cutting tool inserts. Through generation of results for different coating materials (TiN, TiC, and Al 2O 3) and by comparison with actual experimental data, the accuracy and applicability of the single-domain approximation and multiple-domain methods are discussed as related to machining processes.
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