Fundamental study of mass finishing processes with a focus on design of abrasive media and advanced modelling approaches

大批量抛光是一种广泛使用的改善表面粗糙度和修整刃口的技术，它以松散的磨粒为工具。然而，只有很少的研究人员对这项技术进行了调查，研究结果仅限于对具体应用的实证研究结果。因此，大规模抛光仍然是一个黑匣子过程，在工业应用中强烈依赖训练有素的工人的经验来进行过程设计和控制。在当前的DFG项目-批量精加工的基本原理中，朝着全面的工艺模型迈出了第一步。但在过去的研究中，磨料的形状和大小几乎没有被认为是一个因素。尽管媒体制造商提供了各种不同的媒体几何形状。在拟议的研究项目中，将系统地研究介质的大小和形状对表面演化的影响。此外，考虑到介质-工件接触和材料去除机制的现有工艺模型以及当前DFG项目建立的用于模拟接触强度的有前景的离散元方法将得到改进，以确保更广泛的适用性。

Mass Finishing is a widely used technology for surface roughness improvement and edge rounding, applying loose abrasive particles as tools. Nevertheless only few researchers have investigated this technology and findings are limited to results of empirical studies of specific applications. Consequently mass finishing still remains a black box process that strongly relies on the experience of trained workers for process design and control in industrial application. In the current DFG-project Fundamentals of Mass Finishing first steps towards a comprehensive process model are taken. But shape and size of abrasive media have hardly been considered as a factor in past research. Although manufacturers of media offer a large variety of different media geometries. The influence of size and shape of media on surface evolution will be systematically investigated in the proposed research project. Furthermore current process models, considering the media-workpiece contact as well as material removal mechanisms, and the promising discrete element approach for simulating contact intensities that is established by current DFG-project will be enhanced to ensure wider applicability.