钴铬钼合金超声振动辅助抛光力与表面质量的探究  

Study on Ultrasonic Vibration Assisted Polishing Force and Surface Quality of CoCrMo Alloy

作　　者：于保军[1] 吴爽 辛成磊 贾茹 谷岩[1] YU Baojun;WU Shuang;XIN Chenglei;JIA Ru;GU Yan(School of Mechatronic Engineering,Changchun University of Technology,Changchun 130012,China)

机构地区：[1]长春工业大学机电工程学院,长春130012

出　　处：《机械科学与技术》2024年第3期497-503,共7页Mechanical Science and Technology for Aerospace Engineering

基　　金：吉林省科技发展计划(20190201254JC)。

摘　　要：针对钴铬钼合金的难加工性,采用超声振动辅助抛光的加工方法改善其加工效果。根据超声振动装置的运动特性,分析了单磨粒运动速度、单磨粒与工件接触轨迹坐标和单磨粒受力,建立了抛光系统的抛光力预测模型,讨论了主轴转速、进给速度和抛光深度对钴铬钼合金表面质量的影响并用实验验证了预测模型的合理性。结果表明:抛光力预测模型和实验的变化趋势一致,抛光力随着主轴转速和抛光深度的增大而增大,随着进给速度的增大而减小。本研究将为超声振动辅助抛光工艺提供理论基础。Aiming at the difficult processing of CoCrMo alloy,the processing method of ultrasonic vibration assisted polishing is used to improve the processing effect.According to the motion characteristics of the ultrasonic vibration device,the speed of the single abrasive particle,the coordinate of the contact track between the single abrasive particle and the workpiece,and the force of the single abrasive particle are analyzed,and the polishing force prediction model for the polishing system is established.The effects of the spindle speed,feed speed and polishing depth on the surface quality of CoCrMo alloy are discussed and the validity of the prediction model is verified by experiments.The results show that the polishing force prediction model is consistent with the experiment.The polishing force increases with the increasing of spindle speed and polishing depth,and decreases with the increasing of feed speed.This research will provide a theoretical basis for the ultrasonic vibration-assisted polishing process.

关 键 词：超声振动辅助抛光 钴铬钼合金 抛光力 表面质量 

分 类 号：TG580[金属学及工艺—金属切削加工及机床]