Abstract
Traditional polymer forming methods have concentrated on moulding technology. CNC Machining of a low-density material, such as an elastomer even at significantly reduced temperatures presents a number of challenges, with one being the generation of a machining phenomenon termed adiabatic shear band formation. As a result of this, tool degradation and increased part surface roughness can occur. The adiabatic shear band formation is a region 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 dissipate. This leads in some cases to permanent material damage resulting in reduced fatigue resistance. With the machining of elastomers, the adiabatic shear formation has the potential to be even more evident, leading to rapid material degradation and poor surface finish characterisitics. In this paper,cyrogenic manufacturing is reviewed, ethylene vinyl acetate (EVA) and Neoprene materials are machined illustrating and the resulting adiabatic shear band formations are ilustrated.
Original language | English |
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Title of host publication | Proceedings of the 36th International MATADOR Conference |
Editors | Srichand Hinduja, Lin Li |
Publisher | Springer London |
Pages | 235-238 |
Number of pages | 4 |
Volume | 2010-January |
ISBN (Electronic) | 9781849964326 |
ISBN (Print) | 978-1-84996-431-9 |
DOIs | |
Publication status | Published - 2010 |
Event | 36th International MATADOR Conference - Manchester, Lancashire, UK United Kingdom Duration: 14 Jul 2010 → 16 Jul 2010 |
Conference
Conference | 36th International MATADOR Conference |
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Country/Territory | UK United Kingdom |
City | Manchester, Lancashire |
Period | 14/07/10 → 16/07/10 |
Keywords
- Adiabatic Shear
- CNC
- Cryogenic Treatment
- Chip Morphology
- Chip Formation
ASJC Scopus subject areas
- Control and Systems Engineering