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.

通过微润滑凹痕进行加工，可以大大降低摩擦式压力表面上的摩擦。先前的研究涉及主要滑动裸露区域的润滑凹坑的设计和效果分析，并开发了工具和加工策略为它们的生产。该研究建议的独创性是对这项有前途的技术的进一步探索。如下所示，有关表面结构的知识差距，这些差距会受到高接触压力和滚动接触的高度。对于通常由硬化的钢组件制成的这些部分，如今，关于压力与必要的润滑Dimple几何形状或适当的加工概念之间关系的科学见解还不够足够。因此，一方面，必须建立摩擦学关系的创新方法，另一方面，必须在新型的运动条件下获得硬化材料中的微型凹坑的加工知识。这尤其包括研究制造过程之间的相互作用，生成的微型酒窝的质量和产生的效果。如果要实现雄心勃勃的项目目标，那么巨大的科学潜力也将发挥巨大的经济潜力。