A novel ultrasonic surface machining tool utilizing elastic traveling waves

Ultrasonics
Ruinan JiJianhui Zhang

Abstract

With the rapid development of modern industrial technology and high performance technology products, ultra-precision machining technology becomes increasingly important. However, joint clearance of kinematic pairs, lack of feeding accuracy and overlarge contact stress still limit the further improvement of ultra-precision machining technology. In this study, a novel surface machining method utilizing structural elastic waves was proposed, and a machining tool using the piezoelectric actuating principle was presented for verifying the proposed method. Two vibration modes with a phase shift of π/2 in both space and time domains are exited simultaneously in the elliptical motion of points on the structural surface. By means of adjusting driving signal parameters, such as frequency, voltage amplitude and phase shift, different machining performances could be achieved. The configuration and working vibration modes of the proposed machining tool were firstly calculated by the finite element method, and then the optimal working frequency of the machining tool prototype was determined by vibration characteristic experiments. At last, machining characteristic experiments were conducted to validate the proposed machining method. Experime...Continue Reading

References

Jul 18, 2012·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Paul Shore, Paul Morantz
Apr 17, 2013·Ultrasonics·Agostino MaurottoVadim V Silberschmidt
Dec 4, 2014·Ultrasonics·Manjot S CheemaApurbba K Sharma
Jan 17, 2016·Ultrasonics·Chen ZhangYingguang Li

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