Please use this identifier to cite or link to this item: https://doi.org/10.1115/1.4003118
Title: Modeling of the effect of machining parameters on maximum thickness of cut in ultrasonic elliptical vibration cutting
Authors: Nath, C.
Rahman, M. 
Neo, K.S. 
Keywords: ductile machining
machining parameters
maximum thickness of cut
modeling
ultrasonic elliptical vibration cutting
Issue Date: 2011
Citation: Nath, C., Rahman, M., Neo, K.S. (2011). Modeling of the effect of machining parameters on maximum thickness of cut in ultrasonic elliptical vibration cutting. Journal of Manufacturing Science and Engineering, Transactions of the ASME 133 (1) : -. ScholarBank@NUS Repository. https://doi.org/10.1115/1.4003118
Abstract: In recent years, the ultrasonic elliptical vibration cutting (UEVC) technique has been found to be an efficient method for the ultraprecision machining of hard and brittle materials. During the machining at a given nominal depth of cut (DOC), the UEVC technique, because of its inherent mechanism, effectively reduces the thickness of cut (TOC) of the workpiece material through overlapping vibration cycles. For the ductile machining of hard and brittle materials, this TOC plays a critical role. However, the relationships between the nominal DOC, the TOC, and the relevant machining parameters have not yet been studied. In this study, the role playing machining parameters for the TOC are firstly investigated and then theoretical relations are developed for predicting the maximum TOC (TOCm) with respect to the relevant machining parameters. It is found that four machining parameters, namely, workpiece cutting speed, tool vibration frequency, and tangential and thrust directional vibration amplitudes, influence the TOCm. If the speed ratio (ratio of the workpiece cutting speed to the maximum tool vibration speed in the tangential direction) is within a critical value 0.12837, then a reduced TOCm can be obtained. It is also realized that if the TOCm can be kept lower than the critical DOC (DOCcr), then ductile finishing of brittle materials can be achieved. The above phenomenon has been substantiated by experimental findings while machining a hard and brittle material, sintered tungsten carbide. The findings suggest that the same concept can be applied for the ductile cutting of other hard and brittle materials. © 2011 American Society of Mechanical Engineers.
Source Title: Journal of Manufacturing Science and Engineering, Transactions of the ASME
URI: http://scholarbank.nus.edu.sg/handle/10635/85426
ISSN: 10871357
DOI: 10.1115/1.4003118
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