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|Title:||Effect of machining parameters in ultrasonic vibration cutting|
Cutting tool life
Tool vibration parameters
Tool-workpiece contact ratio
Ultrasonic vibration cutting
|Source:||Nath, C.,Rahman, M. (2008-07). Effect of machining parameters in ultrasonic vibration cutting. International Journal of Machine Tools and Manufacture 48 (9) : 965-974. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ijmachtools.2008.01.013|
|Abstract:||The ultrasonic vibration cutting (UVC) method is an efficient cutting technique for difficult-to-machine materials. It is found that the UVC mechanism is influenced by three important parameters: tool vibration frequency, tool vibration amplitude and workpiece cutting speed that determine the cutting force. However, the relation between the cutting force and these three parameters in the UVC is not clearly established. This paper presents firstly the mechanism how these parameters effect the UVC. With theoretical studies, it is established that the tool-workpiece contact ratio (TWCR) plays a key role in the UVC process where the increase in both the tool vibration parameters and the decrease in the cutting speed reduce the TWCR, which in turn reduces both cutting force and tool wear, improves surface quality and prolongs tool life. This paper also experimentally investigates the effect of cutting parameters on cutting performances in the cutting of Inconel 718 by applying both the UVC and the conventional turning (CT) methods. It is observed that the UVC method promises better surface finish and improves tool life in hard cutting at low cutting speed as compared to the CT method. The experiments also show that the TWCR, when investigating the effect of cutting speed, has a significant effect on both the cutting force and the tool wear in the UVC method, which substantiates the theoretical findings. © 2008 Elsevier Ltd. All rights reserved.|
|Source Title:||International Journal of Machine Tools and Manufacture|
|Appears in Collections:||Staff Publications|
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