范国良、应崇福、林仲茂和彭翔的“一种新型的超声加工深小孔的工具系统”一文,提出了一种非半波长的等截面杆的工具系统,是很有价值的.其意义在于实际证明了传统的只有半波长或半波长级联的杆才能构成超声振动系统的观点可以打破,并在实用上解决了由于工具头磨损而限制了超声加工应用的长期令人困扰的问题. Fan Guoliang, Ying Chongfu, Lin Zhongmao and Peng Xiang, “A New Tool System for Deep Hole Machining with Ultrasonic Processes” proposed a non-half-wavelength cross-section rod tool system which is of great value. The point is that it turns out that the traditional notion that only rods with a half-wavelength or a half-wavelength cascade can constitute an ultrasonic vibration system can be broken and practically solved the long troubling issues that limit the application of ultrasonic machining due to tool head wear .