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首页> 外文会议>STLE/ASME international joint tribology conference 2008 : Tribomaterials ; Nanotribology ; Biotribology ... >LOCAL TOOL WEAR PREDICTION USING PHYSICS-BASED MODELS
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LOCAL TOOL WEAR PREDICTION USING PHYSICS-BASED MODELS

机译：基于物理模型的局部工具磨损预测

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摘要

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-a phase transformation in the middle Al_2O_3 layer, the change in the friction conditions as each layer is exposed, and the combined wear resistance of multi-layers of the cutting tool.
机译：建立了基于刀具磨损背后的物理学的半经验模型，该模型可以局部描述刀具磨损，以预测多层涂层硬质合金的弹坑轮廓。溶出度和磨损关系被重塑为点状或局部形式，以基于有限元模拟中的温度和压力曲线直接进行预测。该方法合理地解释了在多层涂层硬质合金中观察到的弹孔轮廓。然而，由于中间Al_2O_3层中的κ至a相变，暴露每一层时摩擦条件的变化以及多层刀具的综合耐磨性，该模型偏离了真实轮廓。

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