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Defined cutting edge preparation by 3D form grinding

通过 3D 形状磨削进行明确的切削刃准备

基本信息

批准号：
265652293
负责人：
Professor Dr.-Ing. Eckart Uhlmann
金额：
--
依托单位：
Fachgebiet Werkzeugmaschinen und Fertigungstechnik
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2014
资助国家：
德国
起止时间：
2013-12-31 至 2021-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/265652293?language=en
关键词：
Defined cutting edge preparation 3D

项目摘要

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.

切削刃的几何形状具有很大的潜力，用于优化几何确定的切削刃切削中的切屑去除。它对切削加工的经济性、生产率和工艺可靠性有着重要的影响。通过三维成形磨削工艺制造复杂形状和精确限定的切削刃迄今为止仅被实施为不足。关于灵活的切削刃几何形状和高再现性，开发用于切削刃制造的3D成形磨削工艺是非常重要的。为了实现可靠和经济的切削刃制造过程，需要编译有关成形磨削中的主动机制的知识。因此，所要求的研究项目的主要目标是开发一种三维成形磨削工艺，用于可转位刀片上复杂切削刃的定义和可靠制造，其中将分析不同切削刃几何形状和切削材料的适用性。并进一步分析了影响因素对加工效果的影响，以及对磨具的工艺参数和磨损参数的影响。对于3D成形磨削工艺的技术分析，选择了金刚石磨削点，这些磨削点非常适合在几何形状确定的切削刃上制造特定的几何形状。几何形状的高度灵活性和高再现性也证明了这种加工程序的选择是合理的。