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在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，并解释由此导致的砂轮磨损和材料去除机理。为此，在以前的DFG项目中开发的用于确定PCD磨削过程中接触区摩擦学条件的摩擦模型必须进行调整，以适应不同冷却润滑剂的使用。根据这些模型计算的接触区的微观热载荷和机械载荷可以解释多晶金刚石磨削过程中的材料去除和砂轮磨损机理，这是冷却润滑剂物理性质的函数。

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.