Influence of the Grinding Wheel Topography on the Thermo-Mechanical Stress Collective in Grinding
Influence of the Grinding Wheel Topography on the Thermo-Mechanical Stress Collective in Grinding
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DOI：
10.3390/inventions2040034
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发表时间：
2017-12-01
期刊：
影响因子：
3.4
通讯作者：
Klocke, Fritz
中科院分区：
文献类型：
--
作者：
Barth, Sebastian;Klocke, Fritz
磨削加工是淬硬钢的高性能加工和表面精加工。砂轮形貌除了决定磨削参数和磨削液供给外，还主要决定磨削过程行为和磨削过程效果。由于砂轮体积组成的变化、砂轮调节的变化或磨损引起接触条件的变化而引起的地形变化。目前的技术状况显示了关于体积砂轮组成和由此产生的砂轮形貌对作用于工件外部区域的热机械应力集体的影响的实质性知识缺陷。因此，不可能对磨削后体积砂轮组成对部件外区性能的影响作出定量陈述。因此，当前研究的目的是建立一个经验分析模型来预测砂轮形貌对热-机械应力集体的影响。为此，开发了一种方法，可以预测磨削过程中与地形相关的热机械负荷。因此，利用定量参数对形貌进行表征，并对磨削过程行为的主要影响因素进行了研究。利用这些结果分析了形貌变化对磨削温度和磨削力的影响。对所得结果进行了总结，并用于解释砂轮形貌对热-机械应力集体的影响。
The grinding process is used for both high-performance machining and surface finishing of hardened steel. In addition to the grinding parameters and the grinding fluid supply, the topography of the grinding wheel mainly determines the grinding process behavior and the grinding process result. An alteration of the topography by a variation of the volumetric composition of the grinding wheel, by a variation of the grinding wheel conditioning, or by wear causes a change in the contact conditions. The state of the art shows a substantial knowledge deficit about the influence of the volumetric grinding wheel composition and the resulting grinding wheel topography on the thermo-mechanical stress collective acting on the workpiece external zone. Thus, it is not possible to make a quantitative statement about the influence of the volumetric grinding wheel composition on the external zone properties of a component after grinding. Therefore, the aim of the current research is an empirical-analytical model for the prediction of the thermo-mechanical stress collective as a function of the grinding wheel topography. For this purpose, a methodology is developed, which enables the prediction of the topography-dependent thermo-mechanical load in a grinding process. Therefore, the topography is characterized by means of quantitative parameters and the main influencing variables on the grinding process behavior are investigated. The findings are used to analyze the influence of a change in the topography on the grinding temperature and the grinding force. The obtained results are summarized and are used to explain the thermo-mechanical stress collective as a function of the grinding wheel topography.