轴承沟道表面完整性研究进展

改善沟道工作表面完整性是解决轴承可靠性寿命低、摩擦功耗高、振动噪声不稳定等技术难题的有效手段。在综合调研国内外学者对广义表面完整性研究的基础上，提出了轴承沟道表面完整性特征参数的定义和内涵，阐述了特征参数的意义及对轴承性能影响的机理，简述了轴承沟道表面加工技术的发展现状，详细分析了锻造、车削、热处理、磨削、超精加工等不同加工工艺对轴承沟道表面特征参数的影响规律，给出了相应的控制措施。最后，介绍了提高轴承工作表面完整性的新技术、新工艺、新方法，并对提高轴承沟道工作表面完整性技术进行了总结和展望。

Research Progresses on Surface Integrity of Bearing Grooves

Improving the surface integrity of bearing grooves was an important solution to solve technical problems such as low reliability life, high friction power consumption and unstable vibrations and noises of bearings. On the basis of comprehensive research of generalized surface integrity by domestic and foreign scholars, the definition and connotation of characteristic parameters of bearing groove surface integrity were proposed, and the significance of characteristic parameters and the influence mechanism on bearing performance were expounded. The influences of different processing processes such as forging, turning, heat treatment, grinding and ultra-precision on the surface characteristic parameters of bearing raceways were analyzed in details, and the corresponding control measures were given. The new technologies, new processes, and new methods for improving surface integrity were briefly introduced. Finally, the summary and prospect of improving the surface integrity of bearing grooves were made to provide some references for improving the contact fatigue lifes of bearings.