Defined cutting edge preparation by 3D form grinding

在具有几何形状的刀具的切割中，刀具的几何形状对切屑去除的优化具有很大的潜力。它对切割过程的经济性、生产率和工艺可靠性有重大影响。通过三维成形磨削加工复杂形状和精确定义的刃口，到目前为止还缺乏实现。对于柔性刃口几何形状和高再现性而言，开发用于刃口制造的3D成形磨削工艺是非常重要的。为了实现可靠和经济的刃口制造工艺，需要汇编关于成形磨削中的主动机理的知识。因此，所要求的研究项目的主要目标是开发一种3D成形磨削工艺，用于在可转位刀片上明确和可靠地制造复杂的刃口，其中将分析不同刃口几何形状和刀具材料的适用性。此外，还分析了影响因素对工作结果的影响以及磨具的工艺参数和磨损参数。对于3D成形磨削过程的技术分析，选择了非常适合在几何确定的刀具刃上制造特定定义几何的金刚石磨削点。选择这种加工程序也是因为几何形状的高度灵活性和高度的重复性。

The geometry of cutting edges has a high potential for the optimization of chip removal in cutting with geometrically determined cutting edges. It has a significant impact on the economy, productivity and process reliability of cutting processes. The manufacturing of complex shaped and exactly defined cutting edges by 3D form grinding processes have been implemented only deficient so far. With regard to a flexible cutting edge geometry and a high reproducibility the development of a 3D form grinding process for cutting edge manufacturing is very important. Knowledge about the active mechanisms in form grinding needs to be compiled in order to realize a reliable and economical manufacturing process of cutting edges. Hence the main goal of the requested research project is the development of a 3D form grinding process for the defined and reliable manufacturing of complex cutting edges on indexable inserts, in which the applicability for different cutting edge geometries and cutting materials will be analyzed. Furthermore the impact of the influencing factors on the work result and the process and wear parameters of the grinding tools will be performed. For the technological analysis of the 3D form grinding process, diamond grinding points were chosen which are well suited for a manufacturing of specific defined geometries on geometrically determined cutting edges. The choice of this machining procedure is also justified by a high flexibility for geometries and a high reproducibility.