超声振动辅助砂带磨抛钛合金的磨削力建模分析

Modeling and analysis of grinding force for grinding titanium alloy with abrasive belt assisted by ultrasonic vibration

基于赫兹接触理论简化接触轮和工件的接触模型,分析了超声振动砂带磨削原理,并对超声辅助的磨粒运动特性进行了研究。通过将磨削力分为切削变形力和摩擦力两部分,分析超声振动对切削变形力和摩擦力的影响。结果表明:建立的模型具有较高的预测精度,可为后续实际加工指导提供有效参考与理论基础。

Based on Hertz contact theory,the contact model of contact wheel and workpiece is simplified to analyze the principle of ultrasonic vibration belt grinding,and the motion characteristics of ultrasonic assisted abrasive particles are analyzed.By dividing grinding force into cutting deformation force and friction force,the influence of ultrasonic vibration on cutting deformation force and friction force is analyzed.The results show that the proposed model has high prediction accuracy and provides effective reference and theoretical basis for subsequent practical machining guidance.