Simulation and Application of a Piezo-Driven System Enabling Vibration-Assisted Micro Milling
Simulation and Application of a Piezo-Driven System Enabling Vibration-Assisted Micro Milling
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DOI：
10.4230/oasics.ipmvm.2020.3
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
S. Greco;K. Klauer;B. Kirsch;J. Aurich
中科院分区：
文献类型：
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作者：
S. Greco;K. Klauer;B. Kirsch;J. Aurich
正在进行的部件小型化和表面功能化要求改进微加工工艺并提高其效率。提高加工效率的一种方法是减少加工力和刀具磨损，这是通过在常规加工过程中实施振动辅助切削来实现的。在振动辅助切割中，常规的切割运动是由具有确定频率的振动叠加而成的。通过使用振动辅助切割技术，除了提高效率外，还可以加工更广泛的材料。本文将振动辅助切削技术应用到微加工中。为此，描述了一个易于集成的系统的设计、仿真和应用，该系统使微加工过程中的振动辅助切割成为可能。采用微铣削工艺对该装置进行了测试。研究了进给方向和振动方向之间的两个方向。检测频率高达15 kHz，加工材料为黄铜（CuZn39Pb2）。从加工力、表面粗糙度、毛刺形成和槽底等方面分析了叠加振动的影响，并与无振动辅助的微铣削加工结果进行了比较。在振动辅助微铣削过程中，观察到加工力降低了63%。2012 ACM学科分类应用计算→物理科学与工程
The ongoing miniaturization of components and the functionalization of surfaces necessitates the improvement of micro machining processes and to increase their efficiency. One method to increase the machining efficiency is reducing the process forces and tool wear, which is achieved by the implementation of vibration-assisted cutting in conventional machining processes. In vibrationassisted cutting, the conventional cutting movement is superimposed by a vibration with defined frequency. By using vibration-assisted cutting technologies, besides increased efficiency, a wider range of materials can be machined. In this paper, vibration-assisted cutting is transferred to micro machining. For this purpose, the design, simulation and application of an easy to integrate system that enables vibration-assisted cutting for micro machining processes is described. The setup was tested using a micro milling process. Two orientations between feed direction and vibration direction were investigated. Frequencies up to 15 kHz were examined, the machined material was brass (CuZn39Pb2). The effect of the superimposed vibration was analysed on the basis of process force, surface roughness, burr formation and slot bottom and was compared with the process results of micro milling without vibration-assistance. A decrease in process forces of up to 63 % was observed during vibration-assisted micro milling. 2012 ACM Subject Classification Applied computing → Physical sciences and engineering