Modeling and analysis of cutting force in vibration-assisted broaching (VAB)
Modeling and analysis of cutting force in vibration-assisted broaching (VAB)
复制标题
振动辅助拉削 (VAB) 切削力的建模和分析
DOI：
10.1007/s00170-016-9945-x
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发表时间：
2017-07-01
影响因子：
3.4
通讯作者：
Wu, Zhangwei
中科院分区：
文献类型：
--
作者：
Meng, Zhen;Wu, Chuanyu;Wu, Zhangwei
提出了一种振动辅助拉削力预测模型。该模型基于拉刀的几何特征和运动特性，重点考虑了拉刀单齿切削力、拉刀与工件接触的齿数和拉刀简谐运动的影响。首先，根据经验法和剪切角理论，建立了两种单齿拉削模型。其次，在单齿模型的基础上，综合考虑切削刃长度和切削齿数，提出了两种多齿模型。在此基础上，考虑拉刀运动的影响，建立了VAB力模型。对所建立的力模型进行了验证实验，结果表明，随着振动频率的增加，SA模型的计算结果与实验值更加吻合。此外，VAB模型对振动拉削的应用也有一定的指导意义。
This paper aims to present a predicted force model of vibration-assisted broaching (VAB). Based on the geometric features and kinetic characteristics of broach, the model focuses on three important points: (i) the cutting force of single tooth, (ii) the number of teeth in contact with the workpiece, and (iii) the influence of simple harmonic motion (SHM). Firstly, according to the empirical approach (EA) and the shear angle (SA) theory, two kinds of single-tooth model of broaching are built. Secondly, considering the length of cutting edge and the number of cutting tooth, two multi-tooth models based on the single-tooth models are presented. Then, with the influence of broach motion, the models of VAB force are finally established. Verification experiments are conducted for the developed force model and show that the calculated results of SA model are more agreeing well with the experimental values when vibration frequency increased. In addition, the VAB model is helpful in the application of vibration broaching.