Hu Zhanzhan, Jiao Feng, Niu Ying, Ma Xiaosan, Li Chenglong, Jie Yapeng
School of Mechanical and Power Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, China.
Heliyon. 2023 Mar 6;9(3):e14273. doi: 10.1016/j.heliyon.2023.e14273. eCollection 2023 Mar.
Bearings are the core basic components that determine the stable operation of high-end equipment. The traditional processing technology of the raceway surface has been unable to meet the current processing requirements of high precision and high surface quality under the premise of certain efficiency. As one of the ultra-precision grinding technologies, electrochemical grinding (ECG) combines the advantages of electrochemical machining, makes up for the shortcomings of traditional grinding, and provides an effective way to solve this problem. In this paper, the ECG is successfully applied to the internal grinding process of the bearing raceway in combination with the plunge machining. The machining principle of the plunge ECG is described in detail. Based on this, the material removal speed model of the workpiece in the equilibrium state is established. Finally, the effects of main processing parameters such as processing voltage and feed rate on the surface roughness, microhardness, and residual stress of the workpiece after processing are explored through experiments.
轴承是决定高端设备稳定运行的核心基础部件。传统的滚道表面加工技术在一定效率前提下已无法满足当前高精度和高表面质量的加工要求。作为超精密磨削技术之一，电化学磨削（ECG）结合了电化学加工的优点，弥补了传统磨削的不足，为解决这一问题提供了有效途径。本文将电化学磨削与切入式加工相结合，成功应用于轴承滚道的内圆磨削工艺中。详细阐述了切入式电化学磨削的加工原理。在此基础上，建立了工件平衡状态下的材料去除速度模型。最后，通过实验探究了加工电压、进给速度等主要加工参数对加工后工件表面粗糙度、显微硬度和残余应力的影响。
