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Service life enhancing design of surfaces with adjusted metalworking fluids on the example of lubicated metallic friction systems

以润滑金属摩擦系统为例，使用调整后的金属加工液提高表面的使用寿命设计

基本信息

批准号：
249613872
负责人：
Professor Dr. Heinrich Arlinghaus
金额：
--
依托单位：
Fachgebiet Fertigungsverfahren
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 2017-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/249613872?language=en
关键词：
Service life enhancing design surfaces

项目摘要

The general objective of this research project is the development of a method to improve the performance of parts for lubricated metallic friction systems in combination with appropiatly additivated metalworking fluids for finishing processes. Within the finishing process the parts surface should be pre-conditioned in that way, that even at further reduction of part size or increased workload a constant friction coefficient at sufficient level is secured. By this, the actual state of service life should nevertheless be achieved.It is evident, that chemical effects of additives in metalworking fluids provide a beneficiary effect on the tribological behavior of machine parts. A need for further research is in the first place given with regards to the understanding of the chemical and/or physical mechanisms which cause an improvement of the running-in behavior and as a result an enhancement of service life by a pre-conditioning during machining. Within the proposed research project the fundamentals should be explored systematically, which is necessaryto understand the cause-and-effect relationships between the final surface integrity after machining and the surface integrity under operating conditions. Of particular interest is therefore the interaction between finishingprocess, tribological load and the combined application of different high resolution methods for surface analysis. For complete description of these interactions it is necessary to understand clearly the relationshipsbetween process parameters, composition of surface layer before and after tribological load and the friction and wear behavior from the beginning of the machining process until the final formation of tribological surface layers under work conditions. Based on this, finishing processes which are optimized from a tribological point of view will be defined and guidelines for future design of machining processes will be established.

该研究项目的总体目标是开发一种方法，与用于精加工工艺的适当添加剂金属加工液相结合，提高润滑金属摩擦系统零件的性能。在精加工过程中，零件表面应进行预处理，即使零件尺寸进一步减小或工作量增加，也能确保足够水平的恒定摩擦系数。由此，仍应达到实际的使用寿命状态。显然，金属加工液中添加剂的化学作用对机器零件的摩擦学行为有有益的影响。进一步研究的需要首先在于理解化学和/或物理机制，这些机制导致磨合行为的改善，并因此通过加工期间的预处理来提高使用寿命。在拟议的研究项目中，应系统地探索基础知识，这对于理解加工后的最终表面完整性与操作条件下的表面完整性之间的因果关系是必要的。因此，特别令人感兴趣的是精加工工艺、摩擦载荷以及不同高分辨率表面分析方法的组合应用之间的相互作用。为了完整地描述这些相互作用，有必要清楚地理解工艺参数、摩擦载荷前后表面层的组成以及从加工过程开始到工作条件下摩擦表面层最终形成的摩擦和磨损行为之间的关系。在此基础上，将定义从摩擦学角度优化的精加工工艺，并为未来的加工工艺设计制定指南。