With the advancement of processing technology, the surface quality of crankshafts has become very demanding, especially in locations with severe friction and wear, such as the main shaft and connecting rod journals. Barrel finishing technology is widely applicable to the surface processes of large- and medium-sized parts as a typical free-grinding processing method with the characteristics of low processing cost, high processing efficiency, and simple processing equipment. In this study, a horizontal spindle barrel finishing machine is applied to the crankshaft parts. The surface integrity of the crankshaft is systematically evaluated before and after the finishing processing. The experimental results show that the surface integrity of the crankshaft is significantly improved after the finishing processing, which further improves the wear resistance of the part surface and increases the bearing capacity.

随着加工技术的进步，曲轴对表面质量的要求越来越高，尤其是在摩擦磨损严重的部位，如主轴、连杆轴颈等。滚磨技术作为一种典型的自由磨削加工方法，具有加工成本低、加工效率高、加工设备简单等特点，广泛适用于大中型零件的表面加工。在这项研究中，卧式主轴筒体精加工机应用于曲轴零件。在精加工之前和之后系统地评估曲轴的表面完整性。实验结果表明，精加工后曲轴的表面完整性得到显着提高，