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

对微凹坑进行硬铣削，以减少高应力轴承接触中的摩擦和磨损

• 批准号: 407531729
• 负责人: Professor Dr.-Ing. Berend Denkena
• 金额: --
• 依托单位: Institut für Maschinenkonstruktion und Tribologie (IMKT)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2019
• 资助国家: 德国
• 起止时间: 2018-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/407531729?language=en
• 关键词: Hard; milling; micro; dimples; friction

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.

通过加工微润滑韧窝可以显著降低摩擦应力表面上的摩擦。先前的研究涉及主要滑动暴露区域润滑油凹窝的设计和效果分析，以及生产这些凹窝的工具和加工策略的开发。这项研究计划的独创性在于对这项有前途的技术的进一步探索。如后面所示，存在知识缺口，特别是关于表面的结构，这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，迄今为止，对于应力与必要的润滑韧窝几何之间的关系，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，必须开发创新的方法来模拟摩擦学关系，另一方面，必须获得关于在新的运动学条件下加工硬化材料中的微韧窝的知识。这尤其包括研究制造过程、产生的微凹窝的质量和由此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，那么可观的科学潜力也将实现巨大的经济潜力。