| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Newman, Stephen T.
University of Bath
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (28/28 displayed)
- 2023The state-of-the-art of wire arc directed energy deposition (WA-DED) as an additive manufacturing process for large metallic component manufacturecitations
- 2021Future research directions in the machining of Inconel 718citations
- 2021Effects of in-process LN2 cooling on the microstructure and mechanical properties of Type 316L stainless steel produced by wire arc directed energy depositioncitations
- 2019Cryogenic drilling of carbon fibre reinforced plastic with tool consideration
- 2019Hybrid cryogenic MQL for improving tool life in machining of Ti-6Al-4V titanium alloycitations
- 2019Characterisation of austenitic 316LSi stainless steel produced by wire arc additive manufacturing with interlayer cooling
- 2018Hybrid cooling and lubricating technology for CNC milling of Inconel 718 nickel alloycitations
- 2018Invited Review Article: Strategies and Processes for High Quality Wire Arc Additive Manufacturingcitations
- 2016Comparative investigation on using cryogenic machining in CNC milling of Ti-6Al-4V titanium alloycitations
- 2016Cryogenic High Speed Machining of Cobalt Chromium Alloycitations
- 2016Optimal cutting conditions towards sustainable machining when slot milling aluminium alloycitations
- 2016Hybrid additive and subtractive machine tools - research and industrial developmentscitations
- 2016Investigation of the effects of cryogenic machining on surface integrity in CNC end milling of Ti-6Al-4V titanium alloycitations
- 2015Influence of cutting environments on surface integrity and power consumption of austenitic stainless steelcitations
- 2015Image Processing for Quantification of Machining Induced Changes in Subsurface Microstructure
- 2015Investigation of Cutting Parameters in Sustainable Cryogenic End Milling
- 2014Effect of machining environment on surface topography of 6082 T6 aluminium
- 2013A surface roughness and power consumption analysis when slot milling austenitic stainless steel in a dry cutting environmentcitations
- 2013A Surface Roughness and Power Consumption Analysis When Slot Milling Austenitic Stainless Steel in a Dry Cutting Environmentcitations
- 2013State-of-the-art cryogenic machining and processingcitations
- 2012Evaluation of Cryogenic CNC Milling of Ti-6Al-4V Titanium Alloy
- 2012Cryogenic Machining of Carbon Fibre
- 2012An initial study of the effect of using liquid nitrogen coolant on the surface roughness of inconel 718 nickel-based alloy in CNC millingcitations
- 2012Study of Cryogenics in CNC Milling of Metal Alloys
- 2012Study of the effects of cryogenic machining on the machinability of Ti-6Al-4V titanium alloy
- 2012Environmentally conscious machining of difficult-to-machine materials with regard to cutting fluidscitations
- 2011Adiabatic shear band formation as a result of cryogenic CNC machining of elastomerscitations
- 2010The formation of adiabatic shear bands as a result of cryogenic CNC machining of elastomerscitations
Places of action
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article
Adiabatic shear band formation as a result of cryogenic CNC machining of elastomers
Abstract
The traditional method for producing polymer-based products is the use of moulding technologies such as injection moulding. CNC machining methods are predominantly used for metal part manufacture. The use of CNC machining methods for direct machining of polymers has been discussed in previous studies, particularly for hard polymers such as polypropylene. The CNC machining of soft elastomers, such as ethylene vinyl acetate (EVA), even at significantly reduced temperatures presents a number of challenges, with one being the formation of a machining phenomenon termed adiabatic shear bands, which can lead to increased part surface roughness and reduced part quality. The adiabatic shear band is an area on a chip where the ductile properties of the material being machined have been exceeded and the heat generated does not have sufficient time to be removed. This can lead to permanent material damage resulting in reduced fatigue resistance. The adiabatic shear formation has the potential to be even more evident with the machining of elastomers, leading to rapid material degradation, poor surface finish characteristics, and reduced material attenuation. In this paper the state of the art in cryogenic manufacturing is described and the concept of cryogenic CNC machining of elastomers is discussed. The experimental work consists of machining EVA and Neoprene utilizing the described cryogenic CNC machining facility. Sample chips are taken from the experimental testing and analysed using a scanning electron microscope to illustrate the adiabatic shear band formation in some cases. It is observed that in order to reduce this effect, correct machining parameters corresponding to the elasticity values need to be used and the glass transition temperature needs to be maintained.