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A cutting force model for rotary ultrasonic machining of brittle materials

机译:脆性材料旋转超声加工的切削力模型

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摘要

Knowing cutting force in rotary ultrasonic machining(RUM)can help optimizing input variables.RUM of brittle materials has been investigated both experimentally and theoretically.However,there are no reports on cutting force models for RUM of brittle materials.This paper present same mechanistic model for cutting force in RUM of brittle materials. Assuming that brittle fracture is the primary mechanism of material removal in RUM of brittle materials,the cutting force model is developed step by step.On the basis of this mechanistic model,relationships between cutting force and in put variables(such as spindle speed,feed rate,ultrasonic vibration amplitude,abrasive size,and abrasive concentration)are predicted.Experiments are conducted for model verification and experimental results agree well with model predictions.
机译:了解旋转超声加工中的切削力可以帮助优化输入变量。已经对脆性材料的RUM进行了实验和理论研究。但是,没有关于脆性材料的RUM切削力模型的报道。用于在脆性材料的RUM中切削力。假设脆性断裂是脆性材料的RUM中去除材料的主要机理,则逐步建立切削力模型。在该机理模型的基础上,切削力与输入变量(如主轴转速,进给量)之间的关系进行了实验,以进行模型验证,实验结果与模型预测吻合良好。

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