Tribological Properties for the Interaction of Point Contact Interface

It is found that the theoretical results are in good agreement with the experimental results in reflecting the relationships between the friction radius, test force, number of revolutions and the wear amount of the contact interface, the influence of the friction radius and the number of wear times on the wear rate under different lubrication states, and the improvements in contact half-width and wear distribution under lubricated conditions.

Under dry friction conditions, an increase in friction radius leads to a gradual increase in wear rate. However, under lubricated conditions, an increase in friction radius results in a gradual decrease in wear rate. As the number of wear cycles increases, the wear rate tends to stabilize.

In lubricated conditions, the contact half-width is narrower compared to dry friction, and the wear distribution is significantly improved. The wear prediction model proposed in this paper can accurately predict the wear depth at the point contact interface and provides a crucial theoretical basis and research approach for the study of wear evolution in point contact transmission interfaces.