| 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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Nielsen, Cv
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (47/47 displayed)
- 2024Application of CaCO3 as Anti-Friction Lubricant Additive to Improve Robustness in Sheet Metal Forming of High-Strength Aluminumcitations
- 2024Performance of inert particles as lubricant additives compared to fully formulated industrial forming oils in sheet metal formingcitations
- 2023Evaluation of Required Diameter Adjustment of a Novel Ironing Punch Concept for Reducing Wear During Retractioncitations
- 2023The influence of Particle Hardness on Wear in Sheet Metal Formingcitations
- 2023Strain-Induced Surface Roughening of Thin Sheets and Its Effects on Metal Forming and Component Propertiescitations
- 2023Review on Development and Testing of New Tribology Systems for Sheet Metal Formingcitations
- 2023International round robin test of environmentally benign lubricants for cold forgingcitations
- 2023The influence of hydrostatic pressure build-up on asperity flattening under bulk plastic deformationcitations
- 2022Application of Calcium Carbonate as Green Lubricant Additive in Sheet Metal Formingcitations
- 2022On the applicability limits of double-sided self-pierce rivetingcitations
- 2022Electric performance of fastened hybrid busbars: An experimental and numerical studycitations
- 2022Strength of three-sheet spot welds with critical nugget sizes in tensile shear, cross tension, peel and fatigue testscitations
- 2022The influence of strain hardening and surface flank angles on asperity flattening under subsurface deformation at low normal pressurescitations
- 2021Tool design
- 2021Introduction to the finite element solid formulation
- 2021Cross-wire welding analyzed by experiments and simulationscitations
- 2021Numerical and Experimental Study of AlSi Coating Effect on Nugget Size Growth in Resistance Spot Welding of Hot-Stamped Boron Steelscitations
- 2021The Performance of 3D Printed Polymer Tools in Sheet Metal Formingcitations
- 2021Metal forming
- 2021Effects of Al-Si Coating on Static and Dynamic Strength of Spot-Welded Hot-Stamping Steel Jointscitations
- 2020Resistance sintering of NdFeBCo permanent magnets and analysis of their propertiescitations
- 2019Local stress and strain in heterogeneously deformed aluminum: a comparison analysis by microhardness, electron microscopy and finite element modellingcitations
- 2019Evaluation of tribosystems for sheet metal forming
- 2019Comparison of local stress and strain in a heterogeneouslycompressed AA 1050 ring by electron microscopy, microhardness and finite element modelling
- 2019On the Process and Product Fingerprints for Electro Sinter Forging (ESF)citations
- 2019Process investigation and mechanical properties of electro sinter forged (ESF) titanium discscitations
- 2019Effects of DLC/TiAlN-coated die on friction and wear in sheet-metal forming under dry and oil-lubricated conditions: Experimental and numerical studiescitations
- 2018A Study on DLC Tool Coating for Deep Drawing and Ironing of Stainless Steelcitations
- 2018Lubricant influence on the ejection and roughness of in-die electro sinter forged Ti-discscitations
- 2018A Systematic Approach to Analyse Critical Tribological Parameters in an Industrial Case Study of Progressive Die Sequence Production
- 2018Process parameter influence on Electro-sinter-forging (ESF) of titanium discs
- 2017Electro sinter forging of titanium disks
- 2017Local microstructure and flow stress in deformed metalscitations
- 2016Bonding mechanisms in spot welded three layer combinations
- 2016General Friction Model Extended by the Effect of Strain Hardening
- 2015Numerical methods in simulation of resistance welding
- 2015Weld nugget formation in resistance spot welding of new lightweight sandwich materialcitations
- 20153D numerical simulation of projection welding of square nuts to sheetscitations
- 2014Experimental and simulated strength of spot welds
- 2014Numerical and experimental analysis of resistance projection welding of square nuts to sheetscitations
- 2014Three-dimensional simulations of resistance spot weldingcitations
- 2013All-hexahedral meshing and remeshing for multi-object manufacturing applicationscitations
- 2012Process Simulation of Resistance Weld Bonding and Automotive Light-weight Materials
- 2012Modeling of Thermo-Electro-Mechanical Manufacturing Processes with Applications in Metal Forming and Resistance Welding
- 2011Mechanical Contact Experiments and Simulations
- 2011Revisiting the Fundamentals and Capabilities of the Stack Compression Testcitations
- 2011Three-Sheet Spot Welding of Advanced High-Strength Steels
Places of action
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article
Resistance sintering of NdFeBCo permanent magnets and analysis of their properties
Abstract
Permanent NdFeBCo magnets are produced by resistance sintering, which is a recent approach in the field of powder metallurgy. Classified as an electrical current assisted sintering (ECAS) process, its ultrafast characteristics enable quick densification, in the order of hundreds of milliseconds, which is considerably shorter than in conventional sintering, where up to several hours are required. Furthermore, no admixed powder lubricant is required, thus reducing contaminations and increasing effective density. By optimization of the electrical current density, sintering time and compaction pressure, magnetic discs with up to 97% relative density are presented. High-energy impact ball milling of the particular powder is shown to be important for subsequent magnetization. Sieve analysis shows the influence of the ball milling on the starting powder before sintering. Final properties are evaluated by hardness indentation, SEM and XRD analyses. The magnetic properties are evaluated and compared to both sintered and bonded commercial Nd magnets. The obtained magnetic properties are furthermore in accordance with the technical datasheet of the original powder, meaning that optimal properties are achieved by resistance sintering and magnetization. Finally, for the magnets to be suitable for commercial use, nickel plating of the magnets for enhancing corrosion resistance is shown to be possible by electroplating.