Surface Quality Improvement in Meso-Scale Milling with Spindle Axial Directional Ultrasonic Vibration Assistance

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, vibration assistance has been experimentally investigated to the intermittent milling process mainly 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-meter 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. Apparently chatter marks of the milling process are reduced with the help of the axial ultrasonic vibration assistance.

[Retracted] Green Machining Characteristics Study of Al‐6063 in CNC Milling Using Taguchi Method and Grey Relational Analysis

“…While the approach seems to be beneficial in increasing the utilization of resource efficiency, they rarely consider component quality or different production outputs as alternatives for the improvisation of resource efficiency and ensuring successful marketable goods. Few researches on micro-milling also employed the application of optimization techniques in addressing effective utilization of resources [27][28][29][30][31]. Jawahir et al [32] put forth an insight toward the research perspective that merely spotlighted the formulation of the predictive and measuring methods for surface integrity.…”