Tribological behaviour of turn-milled surface structures for high loaded lubricated rolling contacts

与满滚子轴承中的带保持架的滚动体轴承相反，滚动体之间的不适当的运动条件（200%滑动）导致在滚动体之间不产生润滑膜。因此，在滚动元件处发生高磨损，降低了轴承的可靠性和寿命。功能表面的发展，提供高耐磨性和低摩擦在不利的润滑条件下，提供了改进的潜力。车铣等现代制造方法适用于优化接触表面。该研究项目的目的是在高负荷滚动体表面上创建合适的车铣微观结构。为此目的，在车铣过程中的工艺参数与摩擦和磨损行为在两辊试验台确定的系统研究。基本的见解将提供摩擦学的不利负载的滚动接触的结论，并产生新的可能性，精加工功能表面的高应力润滑接触暴露的滑动，如齿轮，球，球面滚子轴承和轴向圆柱滚子轴承，凸轮，凸轮轴，配对和滚珠丝杠主轴。所有这些都可以显著提高制造和驱动这种机器部件的经济和生态效率。摩擦学和制造技术的密切合作对于实现本研究项目的目标至关重要。

Contrary to rolling-element bearings with cage in full complement rolling-element bearings the inappropriate kinematic conditions between the rolling elements (200% slippage) cause that no lubricating films between the rolling elements are generated. Consequently high wear occurs at the rolling elements, reducing reliability and lifetime of the bearings. The development of functional surfaces, providing high wear resistance and low friction under adverse lubricating conditions, offers potential for improvement. Modern manufacturing methods like turn-milling are suitable for optimizing the surfaces in contact. The aim of the research project is to create a suitable turn-milled microstructure on the highly loaded rolling element surfaces. For this purpose the process parameters during turn-milling in correlation with friction and wear behaviour determined in a two-roller test rig are systematically investigated. The fundamental insights will provide conclusions for tribological adversely loaded rolling contacts and generate new possibilities for finishing functional surfaces in highly stressed lubricated contacts exposed by slippage, like gearings, ball-, spherical roller- and axial cylinder roller bearings, cam-tappet-pairing and ball-screw-spindles. All of this can improve significantly the economic and ecological efficiency in manufacturing and driving such machine components. The close cooperation of tribology and manufacturing technology is essential for achieving the objectives of this research project.