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首页> 外文会议>IMAC Conference on Structural Dynamics >Identification of Stability Cutting Parameters Using Laser Doppler Vibrometry
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Identification of Stability Cutting Parameters Using Laser Doppler Vibrometry

机译：使用激光多普勒振动测定识别稳定性切割参数

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摘要

High-speed milling operations of thin walls are often limited by the so-called regenerative effect that causes poor surface finishing. To optimize the cutting process in terms of quality surface and productivity, the frequency response function (FRF) of the wall needs to be measured in order to identify the modal parameters of the system which are used to obtain the stability lobes that help identify the optimal system's parameter values to warrant stable cutting conditions. The aim of this work is to experimentally show the variation on the frequency response function (FRF) values obtained by using a laser Doppler vibrometer (LDV) device and accelerometer sensors during a milling operation processes of an aluminum thin-walled workpiece of 1 mm thick and 30 mm height. It is shown that the FRF values variations has strong influence on the stable cutting bounds. To further assess our findings, we used the collected experimental data obtained by using the LDV during milling machine cutting operation processes of several thin-walled workpieces to identify the cutting parameters values that allow us to obtain good quality and acceptable surface finish.
机译：薄壁的高速铣削操作通常通过使表面精加工差的所谓的再生效应的限制。为了优化切削过程中表面质量和生产率方面，壁需要的频率响应函数（FRF），以便识别哪个被用于获得稳定性正弦半周的是帮助识别最佳系统的模态参数来测量系统的参数值，令稳定的切削条件。这个工作的目的是通过实验显示出对频率响应函数（FRF）的变化值，通过使用激光多普勒振动计（LDV）装置和加速计传感器中厚1mm的铝薄壁工件的铣削操作过程中获得和30毫米的高度。结果表明，在FRF值的变化对稳定的切削范围强烈的影响。为了进一步评估我们的发现，我们使用通过在几个薄壁工件的铣床切削操作过程使用LDV识别切削参数的值，使我们能够得到良好的质量和可接受的表面光洁度所得到的收集的实验数据。

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