Hard milling of micro dimples for friction and wear reduction in highly stressed bearing contacts

加工微润滑凹坑可以显著降低摩擦应力表面上的摩擦。以前的研究涉及润滑剂凹痕的设计和效果分析，主要是滑动暴露区域和工具的开发和加工策略的生产。这项研究提案的独创性是对这项有前途的技术的进一步探索。如下文所示，存在知识缺口，特别是关于表面结构的知识缺口，这些表面受到高接触压力和滚动接触。对于这些通常由硬化钢部件制成的零件，就目前而言，关于应力和必要的润滑凹窝几何形状之间的关系没有足够的科学见解，也没有适当的加工概念。出于这个原因，一方面，创新的方法来模拟摩擦学关系的开发，另一方面，知识必须获得关于加工的硬化材料在新的运动条件下的微凹坑。这尤其包括研究制造过程、所产生的微凹坑的质量和所产生的效果之间的相互作用。如果雄心勃勃的项目目标能够实现，那么相当大的科学潜力也将带来巨大的经济潜力。

Friction on tribologically stressed surfaces can be significantly reduced by machining of micro lubrication dimples. Previous research involved the design and effect analysis of lubricant dimples in predominantly sliding exposed areas and the development of tools and machining strategies for the production of those. The originality of this research proposal is the consequent further exploration of this promising technology. As shown later, there are knowledge gaps in particular regarding the structuring of surfaces, which are subject to high contact pressures and rolling contacts. For such parts, usually made of hardened steel components, as for today there are not sufficiently enough scientific insights regarding the relationship between stress and necessary lubrication dimple geometry nor appropriate machining concepts. For this reason, on the one hand, innovative ways to model the tribological relationships have to be developed and on the other hand knowledge has to be gained regarding the machining of micro dimples in hardened materials under novel kinematic conditions. This includes in particular the study of the interaction between manufacturing process, the quality of generated micro dimples and the resulting effect. If the ambitious project objectives will be fulfilled, then considerable scientific potential would achieve an enormous economic potential, too.