A semi-empirical model based on the physics behind tool wear that can depict the tool wear locally is developed to predict crater profiles of multilayer coated carbides. Dissolution and abrasion relationships are recast into a point-wise or local version to predict directly based on the temperature and pressure profiles from FE simulation. The approach is reasonable to explain the crater profiles observed in multilayer coated carbides. However, the model deviates from the real profiles due to the κ-to-α phase transformation in the middle Al2O3 layer, the change in the friction conditions as each layer is exposed, and the combined wear resistance of multi-layers of the cutting tool.
Volume Subject Area:
Manufacturing/Metalworking Tribology
Topics:
Physics,
Wear,
Abrasion,
Cutting tools,
Friction,
Phase transitions,
Pressure,
Simulation,
Temperature,
Wear resistance
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Copyright © 2007
by ASME
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