Analysis of wear mechanisms in grinding of polycrystalline diamond with vitrified bonded grinding wheels based on a friction model

该项目的主要研究目标是预测聚晶金刚石磨削过程中的热负荷和机械负荷，作为冷却润滑剂的物理性质和磨削参数的函数，以及解释由此产生的砂轮磨损和材料去除机制。为此，在以前的DFG项目中开发的摩擦模型，用于确定在PCD磨削过程中使用磨削油的接触区中的摩擦学条件，必须适用于使用不同的冷却润滑剂。在这些模型的基础上计算的接触区中的微观热负荷和机械负荷允许在多晶金刚石的磨削过程中作为冷却润滑剂的物理性质的函数的材料去除和砂轮磨损机制的解释。

The primary research objective of this project is to predict the thermal and mechanical loads during grinding of polycrystalline diamond as a function of the physical properties of the cooling lubricant and the grinding parameters, as well as to explain the resulting grinding wheel wear and material removal mechanisms. For this purpose, the friction models developed in the previous DFG project for determining the tribological conditions in the contact zone during PCD grinding with grinding oil must be adapted for the use of different cooling lubricants. The microscopic thermal and mechanical loads in the contact zones calculated on the basis of these models allow an explanation of the material removal and grinding wheel wear mechanisms during grinding of polycrystalline diamond as a function of the physical properties of the cooling lubricant.