Abele, Eberhard ; Müller, Clemens ; Turan, Emrah ; Niehuesbernd, Jörn ; Bruder, Enrico ; Falk, Florian (2015)
Influence of the high speed milling process on the mechanical and microstrcutural properties of ultrafine grained (UFG) profiles produced by linear flow splitting.
12th High Speed Machining Conference 2015, Nanjing, China, September 18 – 20, 2015.
Conference or Workshop Item, Bibliographie
Abstract
In the present work the effects of milling parameters on the surface quality, microstructures and mechanical properties of machined parts having a UFG gradient microstructure are investigated. The effects of the cutting speed, the feed per tooth, the cutting tool geometry and the cooling strategy are shown. It has been found that the surface quality of machined grooves can be improved by increasing the cutting speed. However, cryogenic cooling with CO2 shows no significant improvement of the surface quality. Microstructure and hardness investigations revealed similar microstructure and hardness variations near the cutting edges for both utilized tool geometries. Cryogenic cooling has been found to decrease more far-ranging hardness reductions due to high process temperatures, especially in the UFG regions of the machined parts, whilst it cannot prevent the drop in hardness directly at the cutting edges.
| Item Type: | Conference or Workshop Item |
|---|---|
| Erschienen: | 2015 |
| Creators: | Abele, Eberhard ; Müller, Clemens ; Turan, Emrah ; Niehuesbernd, Jörn ; Bruder, Enrico ; Falk, Florian |
| Type of entry: | Bibliographie |
| Title: | Influence of the high speed milling process on the mechanical and microstrcutural properties of ultrafine grained (UFG) profiles produced by linear flow splitting |
| Language: | English |
| Date: | 2015 |
| Event Title: | 12th High Speed Machining Conference 2015, Nanjing, China, September 18 – 20, 2015 |
| Abstract: | In the present work the effects of milling parameters on the surface quality, microstructures and mechanical properties of machined parts having a UFG gradient microstructure are investigated. The effects of the cutting speed, the feed per tooth, the cutting tool geometry and the cooling strategy are shown. It has been found that the surface quality of machined grooves can be improved by increasing the cutting speed. However, cryogenic cooling with CO2 shows no significant improvement of the surface quality. Microstructure and hardness investigations revealed similar microstructure and hardness variations near the cutting edges for both utilized tool geometries. Cryogenic cooling has been found to decrease more far-ranging hardness reductions due to high process temperatures, especially in the UFG regions of the machined parts, whilst it cannot prevent the drop in hardness directly at the cutting edges. |
| Uncontrolled Keywords: | high speed milling, ultrafine grained microstructure, linear flow splitting, hardness |
| Divisions: | 11 Department of Materials and Earth Sciences > Material Science 11 Department of Materials and Earth Sciences > Material Science > Physical Metallurgy 16 Department of Mechanical Engineering 16 Department of Mechanical Engineering > Institute of Production Technology and Machine Tools (PTW) 16 Department of Mechanical Engineering > Institute of Production Technology and Machine Tools (PTW) > Machining Technology (2021 merged in TEC Fertigungstechnologie) DFG-Collaborative Research Centres (incl. Transregio) DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 666: Integral Sheet Metal Design with Higher Order Bifurcations 11 Department of Materials and Earth Sciences |
| Date Deposited: | 19 Nov 2015 14:17 |
| Last Modified: | 30 May 2018 07:13 |
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