| 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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Chiffre, Leonardo De
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (39/39 displayed)
- 2020Use of Miniature Step Gauges to Assess the Performance of 3D Optical Scanners and to Evaluate the Accuracy of a Novel Additive Manufacture Processcitations
- 2020Deterministic polishing of micro geometriescitations
- 2020Effect of polymer relaxation in automated micro polishingcitations
- 2019Roughness Investigation of SLM Manufactured Conformal Cooling Channels Using X-ray Computed Tomography
- 2018Post moulding thermal characterization of polymer components
- 2018A simple model linking surface roughness with friction coefficient and manufacturing cost
- 2017Monitoring of the thermal deformations on polymer parts using a vision system
- 2016The influence of humidity on accuracy length measurement on polymer parts
- 2016Environmentally clean micromilling of electron beam melted Ti6Al4Vcitations
- 2016Length determination on industrial polymer parts from measurement performed under transient temperature conditions
- 2015Elastic-properties measurement at high temperatures through contact resonance atomic force microscopycitations
- 2015Defining Allowable Physical Property Variations for High Accurate Measurements on Polymer Parts.citations
- 2015Off-line testing of multifunctional surfaces for metal forming applicationscitations
- 2015Dimensional measurements with submicrometer uncertainty in production environment
- 2014Uncertainty of pin height measurement for the determination of wear in pin-on-plate testcitations
- 2014Reproducibility of a reaming testcitations
- 2014Inter laboratory comparison on Industrial Computed Tomography
- 2013Forming of shape memory composite structurescitations
- 2013Inter laboratory comparison on Industrial Computed Tomography
- 2013Inter laboratory comparison on Industrial Computed Tomography
- 2012Hole quality and burr reduction in drilling aluminium sheetscitations
- 2012Reproducibility of a reaming test
- 2012Inter laboratory comparison on Industrial Computed Tomography
- 2011Hole quality and burr reduction in drilling aluminium sheets
- 2011Reproducibility of surface roughness in reaming
- 2009Investigation on hole manufacture in 42CrMo4 steel using 3-flute carbide drills and 6-flute cermet reamers
- 2009Development of Focused Ion Beam technique for high speed steel 3D-SEM artefact fabrication
- 2008Investigation on Capability of Reaming Process using Minimal Quantity Lubrication
- 2008Effectiveness and resolution of tests for evaluating the performance of cutting fluids in machining aerospace alloyscitations
- 2005Investigation on the traceability of three dimensional scanning electron microscope measurements based on the stereo-pair technique
- 2005Micromilling of hardened tool steel for mould making applications
- 2004Performance evaluation of vegetable-based oils in drilling austenitic stainless steelcitations
- 2004Effect of Cutting Parameters on Microhardness in 2 mm Slot Milling Hardened Tool Steel
- 2002Investigations of Cutting Fluid Performance Using Different Machining Operations
- 2001An Investigation of Reaming Test Parameters Used for Cutting Fluid Evaluations
- 2001Evaluation of Cutting Fluids in Multiple Reaming of Stainless Steel
- 2001Correlation of cutting fluid performance in different machining operations
- 2000Tribology in Metal Cutting
- 2000Testing of Vegetable-Based dutting Fluid by Hole Making Operation
Places of action
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report
Inter laboratory comparison on Industrial Computed Tomography
Abstract
An interlaboratory comparison on industrial X-ray Computed Tomography (CT) was organized by the Centre for Geometrical Metrology (CGM), Department of Mechanical Engineering, Technical University of Denmark (DTU) and carried out within the project “Centre for Industrial Application of CT scanning - CIA-CT”. In the comparison, 27 laboratories from 8 countries were involved, and CT scanned two items selected among common industrial parts: a polymer part and a metal part. Altogether, 27 sets of items were circulated in parallel to the participants. Different measurands are considered, encompassing diameters, roundness, and lengths. The results of each participant are kept confidential. Each participant can identify their own results in this report using an anonymous identification number provided by the coordinator. Measuring instructions distributed by the coordinator were followed by all participants without problems. Participants carried out measurements and sent their results to the coordinator. All single items were measured by the coordinator using coordinate measuring machines before and after circulation. Both the metal item and the plastic item have shown a good stability over the total period of approx. 6 months. Depending on item and measurand, reference expanded uncertainties (k=2) ranging from approx. 1.5 μm up to approx. 5.5 μm were estimated. The expanded uncertainties stated by the participants are in the range 8-12 μm for both items and all measurands. Results by the single participants were compared with the reference values provided by the coordinator through the En value, where |En| < 1 indicates agreement between measurement results while |En| ≥ 1 shows disagreement. Out of a total of 167 single results obtained by the participants using CT scanning, 55% of the measurements yield |En| values less than 1, and 45% larger than 1. Systematic errors were detected for some participants on the diameters and lengths, for both plastic and metal items. The roundness measured by the participants for both plastic and metal items was higher than the unfiltered reference value. A clear influence from the surrounding wall thickness on the measurement of roundness was documented for the metal item. The comparison shows that CT scanning on small industrial parts, generally speaking, is connected with uncertainties in the range 8-53 μm, as compared to an uncertainty range of 1.5-5.5 μm using CMMs. Each participant can use the comparison results in the report to investigate the presence of systematic errors or an underestimation of uncertainties. Statistics related to the used equipment and procedures show that participants, in general, have followed state of the art procedures for their measurements. The industrial items are suitable artefacts for CT measurements of this kind, and each participant has been offered to keep a set used for the measurements in the comparison.