Anti-wear and anti-friction performance of cemented carbide under the interaction of micro-circular texture preparation and geometric parameters

Abstract

In order to explore the mechanism of micro-circular textures and optimize its preparation parameters, first, the anti-wear and anti-friction mechanism of micro-circular textures on the cemented carbide surface was studied from a microscopic perspective. The friction and wear tests confirmed the benefits of the micro-circular textures. At the same time, the interaction between the preparation parameters and geometric parameters of the micro-circular textures on the friction force, friction coefficient and wear rate were analyzed. The results show that the interaction of scanning speed, laser power and micro-circular texture diameter has a great influence on the evaluation target. The optimized preparation parameters of micro-circular textures are laser power of 70 W, scanning times of 7 times, scanning speed of 1600 mm/s. Finally, based on the support vector machine algorithm, the target data were optimized, and the prediction models of friction force, friction coefficient and wear rate were established, thereby achieving efficient and high-quality preparation of micro-circular textures on the cemented carbide surface.