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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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Soo, Sein Leung
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2018The influence of burr formation and feed rate on the fatigue life of drilled titanium and aluminium alloys used in aircraft manufacturecitations
- 2017Ultrasonic assisted creep feed grinding of gamma titanium aluminide using conventional and superabrasive wheelscitations
- 2017Improving tribological and anti-bacterial properties of titanium external fixation pins through surface ceramic conversioncitations
- 2016A Coupled Eulerian Lagrangian Finite Element Model of Drilling Titanium and Aluminium Alloyscitations
- 2016The effects of laser surface texturing on scratch test and machining performance of tungsten carbide tools when turning Ti-6Al-4V
- 2016Laser texturing of tungsten carbide tools: the effects on tribological performance when machining Ti-6Al-4V alloy
- 2015A finite element simulation for orthogonal cutting of UD-CFRP incorporating a novel fibre - matrix interface modelcitations
- 2013Abrasive Water Jet Cutting (AWJC) of Co-Cr-Mo alloy investment castings in the medical device industry
- 2012Grinding performance and workpiece integrity when superabrasive edge routing carbon fibre reinforced plastic (CFRP) compositescitations
- 2010Drilling of titanium/CFRP/aluminium stackscitations
Places of action
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document
Abrasive Water Jet Cutting (AWJC) of Co-Cr-Mo alloy investment castings in the medical device industry
Abstract
Investment castings (usually involving ceramic based shells) have traditionally been separated from the mould tree using an abrasive cutting operation. While material removal rates are relatively high, the process unfortunately suffers from poor accuracy control that often necessitates further finishing operations. Following an overview of key considerations in investment casting including tree configurations and gate profile, the paper details experimental work to investigate the feasibility of abrasive waterjet cutting (AWJC) as an alternative to grinding for component cut-off. The workpiece material was a high strength cobalt-chromium-molybdenum alloy (ASTM F-75) commonly used for orthopaedic implants. Preferred AWJC cutting parameters were established for material thicknesses up to 30 mm. Specimens of 13 mm and 30 mm thickness were cut through at maximum traverse speeds of 220 mm/min and 80 mm/min respectively. Abrasive grit embedment was observed primarily at the top surface and exit region of the cut. The effect of investment casting refractory shells on the AWJC process was examined. In addition, a comparative analysis of performance and cost with alternative cutting methods was also performed.