Application of ultrasonic vibration assistance into tooling axis direction in meso-scale milling. (1st January 2012)

• Record Type: Journal Article
• Authors: Ko, Jeong Hoon
• Is Part Of: International journal of abrasive technology. Volume 5:Number 3(2012)
• Page Start: 213
• Page End: 222
• Publication Date: 2012-01-01
• Subjects: meso-scale milling process -- surface quality -- ultrasonic vibration assistance -- simulation; Grinding and polishing -- Periodicals; Abrasives -- Periodicals; 620.44
• Languages: English
• ISSNs: 1752-2641

Abstract

So far, the industrial application of ultrasonic vibration assistance has been successful in continuous machining process such as turning process where ultrasonic vibration velocity is much higher than cutting velocity. Recently, the application of ultrasonic vibration assistance in milling process has been experimentally investigated for feed and cross-feed directions. This paper focuses on the effect of ultrasonic vibration assistance in spindle axial direction for improvement of machined surface. With the designed ultrasonic vibration assisted milling process with 39.7 kHz and a few micro-metre amplitudes, workpiece vibrates along spindle axial direction while different RPMs and feed rates are applied. The axial directional vibration assistance acts as additional cutting motion which further reduces the leftover surface error. Experimental results validate that surface roughness can be improved from 20% to 65% for the tested conditions. The simulation results have been proposed to validate the surface quality improvement phenomenon with the help of the axial ultrasonic vibration assistance.