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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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article
A Coupled Eulerian Lagrangian Finite Element Model of Drilling Titanium and Aluminium Alloys
Abstract
<p>Despite the increasing use of carbon fibre reinforced plastic (CFRP) composites, titanium and aluminium alloys still constitute a significant proportion of modern civil aircraft structures, which are primarily assembled via mechanical joining techniques. Drilling of fastening holes is therefore a critical operation, which has to meet stringent geometric tolerance and integrity criteria. The paper details the development of a three-dimensional (3D) finite element (FE) model for drilling aerospace grade aluminium (AA7010-T7451 and AA2024-T351) and titanium (Ti-6Al-4V) alloys. The FE simulation employed a Coupled Eulerian Lagrangian (CEL) technique. The cutting tool was modelled according to a Lagrangian formulation in which the mesh follows the material displacement while the workpiece was represented by a non-translating and material deformation independent Eulerian mesh. The performance of the CEL based simulation was also benchmarked against an equivalent pure Lagrangian model (both tool and workpiece mesh deforms with the material). The geometry of commercially supplied twin-fluted twist drills utilised in experimental validation trials were imported into the model. Cutting speed (m/min)/ feed rate (mm/rev) combinations were 50/0.08 and 150/0.24 for the aluminium alloys while 10/0.07 and 30/0.21 were used when drilling Ti-6Al-4V. Predicted cutting forces from the CEL model were within 3-14% of the experimentally measured values while the simulated entrance and exit burr height deviated by 6-17.5% and 9-16% respectively, compared to experimental results. Additionally, the model indicated that hole surface residual stresses were typically compressive, with values of up to -344 and -711 MPa for aluminium and titanium workpieces respectively.</p>