超音波振動系統之分析與工具設計研究

Analysis and Tool Design for Rotary Ultrasonic

吳哲誠(Wu-Jhe Cheng)

指導教授 ： 郭桂林

國立臺北科技大學/機電學院/車輛工程系所/碩士(2007年)

https://doi.org/10.6841/NTUT.2007.00424

摘要

超音波應用在材料移除加工方面大多是對於硬脆材料的縱向加工，這是由於振動子所產生的縱向振動能量能夠最直接的透過工具，利用磨粒來對工件進行材料的移除，但若要進行銑削加工，縱向振動能量勢必要轉換成側向(橫向)振動才能符合銑削加工所需的水平切削力。 本研究之目的乃利用超音波之側向變換理論，搭配有限元素法來設計銑削工具，期望能夠達到最佳之加工效率。此外將對現有之振動系統加以改變，以期許在相同條件下，即同樣之壓電陶瓷，能夠發揮出最大功效。

關鍵字

超音波 ； 銑削 ； 工具設計

並列摘要

Application on material remove of ultrasonic is mostly processing vertically to brittle material, this is because vertical vibration energy can direct passing tool to utilize grit to move the material on the workpiece. If want to mill workpiece, vertical vibration energy certainly must be changed into a side direction (horizontal) vibration and then the vibration energy will to conform to processing need.
The purpose of this research is to utilize the ultrasonic energy theory collocate Finite Element Method (FEM) for tool design of milling. Hope that can reach the best processing efficiency. Additionally, we will change the existing vibration system in order to expect under the same condition to bring the greastest efficiency.

並列關鍵字

Ultrasonic ； Milling ； Tool Design

參考文獻

[2] L.A.Balamuth, “Ultrasonic assistance to conventional metal removal,” Ultrasonics,vol4,1996,pp.125-130.

[3] M. Adithan, “Study of the performance characteristics of an ultrasonic drilling head,” Wear, Vol. 33, no 2, 1975, pp.261-270.

[5] J. O. Farrer, “Improvements in or relating to cutting, grinding, polishing, cleaning, honing, or the like,” UK Patent, no. 602801, 1948

[8] E. A. Neppiras, “Macrosonics in industry: 1. Introduction,” Ultrasonics, vol. 10, no 1, 1972, pp.9-13.

[9] A. P. Hulst, “Macrosonics in industry: 2. Ultrasonic welding of metals,” Ultrasonics, vol. 10, no 1, 1972, pp.252-261.