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

质量精加工是一种广泛应用于表面粗糙度改善和边缘圆润的技术，使用松散的磨料颗粒作为工具。然而，只有少数研究人员调查了这项技术，研究结果仅限于具体应用的实证研究结果。因此，大规模精加工仍然是一个黑盒过程，在工业应用中强烈依赖于训练有素的工人的工艺设计和控制经验。在目前的dfg项目《批量精加工基础》中，采取了迈向综合工艺模型的第一步。但在过去的研究中，磨料介质的形状和尺寸几乎没有被考虑到。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，以及由当前dfg项目建立的有前途的模拟接触强度的离散元方法，将得到加强，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.