Details
| Original language | English |
|---|---|
| Article number | 1161 |
| Pages (from-to) | 1-8 |
| Number of pages | 8 |
| Journal | Metals |
| Volume | 10 |
| Issue number | 9 |
| Publication status | Published - 28 Aug 2020 |
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.
Keywords
- Built-up edge, Extreme vacuum, Microstructure, Milling, Ti 64, Ti-6Al-4V, Tribo-oxidation
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
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In: Metals, Vol. 10, No. 9, 1161, 28.08.2020, p. 1-8.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Towards Dry Machining of Titanium-Based Alloys: A New Approach Using an Oxygen-Free Environment
AU - Maier, Hans-Jürgen
AU - Herbst, Sebastian
AU - Denkena, Berend
AU - Dittrich, Marc-André
AU - Schaper, Florian
AU - Worpenberg, Sebastian
AU - Gustus, René
AU - Maus-Friedrichs, Wolfgang
N1 - Funding information: Parts of this work were funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)—Project-ID 394563137-SFB 1368.
PY - 2020/8/28
Y1 - 2020/8/28
N2 - 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.
AB - 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.
KW - Built-up edge
KW - Extreme vacuum
KW - Microstructure
KW - Milling
KW - Ti 64
KW - Ti-6Al-4V
KW - Tribo-oxidation
UR - http://www.scopus.com/inward/record.url?scp=85093882637&partnerID=8YFLogxK
U2 - 10.3390/met10091161
DO - 10.3390/met10091161
M3 - Article
VL - 10
SP - 1
EP - 8
JO - Metals
JF - Metals
SN - 2075-4701
IS - 9
M1 - 1161
ER -