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Increasing tool life in machining of difficult-to-cut materials using nonconventional turning processes

Karagüzel, Umut and Olgun, Utku and Uysal, Emre and Budak, Erhan and Bakkal, M. (2015) Increasing tool life in machining of difficult-to-cut materials using nonconventional turning processes. International Journal of Advanced Manufacturing Technology, 77 (9-12). pp. 1993-2004. ISSN 0268-3768 (Print) 1433-3015 (Online)

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Official URL: http://dx.doi.org/10.1007/s00170-014-6588-7

Abstract

Machining of difficult-to-cut materials such as high-temperature metals is challenging due to their low machinability resulting in reduced productivity and high manufacturing cost. Turning is a common operation used for production of these parts where cutting speed, and thus the material removal rate, is limited due to high tool wear rate. Therefore, there is a need for alternative techniques in order to increase productivity in machining of these materials. This paper presents experimental results on two nonconventional turning operations, namely turn-milling and rotary turning processes, applied on common difficult-to-cut materials. Tool wear was measured under various cutting conditions for both processes and compared with conventional turning. From test results, it can be concluded that both turn-milling and rotary turning operations can provide longer tool life compared to conventional turning, thanks to intermittent characteristics of processes which result in lower average tool temperature. Effects of cutting and cooling conditions on tool life were also investigated yielding conclusions for selection of conditions for increased tool life.

Item Type:Article
Uncontrolled Keywords:Tool wear; Rotary turning; Turn-milling; Titanium alloys; Nickel alloys; MQL; Coolant; High-temperature alloys
Subjects:T Technology > TJ Mechanical engineering and machinery
ID Code:25574
Deposited By:Erhan Budak
Deposited On:22 Dec 2014 14:27
Last Modified:20 May 2015 14:35

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