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Towards dry machining of titanium-based alloys : A new approach using an oxygen-free environment
Authors
Berend Denkena
Marc-André Dittrich
+6 more
René Gustus
Sebastian Herbst
Hans Jürgen Maier
Wolfgang Maus-Friedrichs
Florian Schaper
Sebastian Worpenberg
Publication date
1 January 2020
Publisher
Basel : MDPI AG
Doi
Cite
Abstract
In the current study, the potential of dry machining of the titanium alloy Ti-6Al-4V with uncoated tungsten carbide solid endmills was explored. It is demonstrated that tribo-oxidation is the dominant wear mechanism, which can be suppressed by milling in an extreme high vacuum adequate (XHV) environment. The latter was realized by using a silane-doped argon atmosphere. In the XHV environment, titanium adhesion on the tool was substantially less pronounced as compared to reference machining experiments conducted in air. This goes hand in hand with lower cutting forces in the XHV environment and corresponding changes in chip formation. The underlying mechanisms and the ramifications with respect to application of this approach to dry machining of other metals are discussed. © 2020, MDPI AG. All rights reserved
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Publikationsserver der Technischen Universität Clausthal
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Last time updated on 24/10/2022
Institutionelles Repositorium der Leibniz Universität Hannover
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Last time updated on 11/04/2021