工程陶瓷孔复频超声加工方法的研究

Research on Multi-Frequency Ultrasonic Machining Holes in Ceramics

超声加工方法广泛应用于工程陶瓷等硬脆材料的加工生产中。传统超声加工方法运动部件较多,操作复杂,为提高加工效率、降低成本,提出了复频超声加工方法,并建立了自由质量块的数学模型,分析了复频超声加工方法的加工原理,设计并加工了一套复频超声加工装置,并对陶瓷材料进行了实验研究,得到不同加工条件下各试件的材料去除率;比较各试件的材料去除率,发现复频超声加工方法相较于传统超声加工,其加工效率可以提高3倍,这为复频超声加工的设计及推广提供了理论指导。

Ultrasonic machining method is widely used in the machining and production of hard brittle materials such as engineering ceramics. Because there are many moving parts,the operation of traditional ultrasonic machining method is complex. In order to improve the machining efficiency and reduce the cost,the multi-frequency ultrasonic machining method was put forward,the mathematical model of free mass was established,the machining principle of the multi-frequency ultrasonic machining method was researched,and a set of multi-frequency ultrasonic machining device was designed and machininged. This method was verified with experiment on ceramics. The material removal rate of each workpieces under different machining conditions was obtained. Comparing the material removal rate of each workpieces,result shows that comparing with the traditional ultrasonic machining method,the machining efficiency of multi-frequency ultrasonic machining method can be increased by 3 times,which provide theoretical guidance for design and promotion of the multi-frequency ultrasonic machining method.