| 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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Poll, Gerhard
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (41/41 displayed)
- 2024Evaluating the Tribological Behaviour in Cutting Operations Using a Modified Ball-on-Disc Open Tribotester
- 2024Optimizing Stainless Steel Bearings: Enhancement of Stainless Steel Bearing Fatigue Life by Low-Temperature Forming
- 2024A Review on Sensor‐Integrating Machine Elementscitations
- 2023Wear of Tailored Forming Steelscitations
- 2023Wear Development in Oscillating Rolling Element Bearingscitations
- 2023Tribological Effects of Metalworking Fluids in Cutting Processescitations
- 2023Process strategies for milling of dimples on tapered roller bearingscitations
- 2023On the Elastohydrodynamic Film-Forming Properties of Metalworking Fluids and Oil-in-Water Emulsionscitations
- 2022Influence of Metal Working Fluids in Cutting Processescitations
- 2022Investigations on Additively Manufactured Stainless Bearingscitations
- 2022Investigations on the Specifics of Laser Power Modulation in Laser Beam Welding of Round Barscitations
- 2022Functionality Investigations of Dry-Lubricated Molybdenum Trioxide Cylindrical Roller Thrust Bearings
- 2022Functionality Investigations of Dry-Lubricated Molybdenum Trioxide Cylindrical Roller Thrust Bearingscitations
- 2022Reibkoeffizientenermittlung in der Zerspanung auf Basis von Hochgeschwindigkeitsaufnahmencitations
- 2021Validation of a solvent-based process for the smoothing of additively manufactured 3D models of nasal cavities
- 2021Influence of degree of deformation on welding pore reduction in high-carbon steelscitations
- 2021Influence of process-related heat accumulation of laser beam welded 1.7035 round bars on weld pool shape and weld defectscitations
- 2020Numerical investigations regarding a novel process chain for the production of a hybrid bearing bushingcitations
- 2020Numerical simulation and experimental validation of the cladding material distribution of hybrid semi-finished products produced by deposition welding and cross-wedge rollingcitations
- 2020Simulation assisted process chain design for the manufacturing of bulk hybrid shafts with tailored propertiescitations
- 2020Production-related surface and subsurface properties and fatigue life of hybrid roller bearing componentscitations
- 2020Investigations on graphene platelets as dry lubricant and as grease additive for sliding contacts and rolling bearing application
- 2020Ultrasonic Evaluation of Tailored Forming Componentscitations
- 2020Investigations on tailored forming of aisi 52100 as rolling bearing racewaycitations
- 2020Energy-based modelling of adhesive wear in the mixed lubrication regimecitations
- 2020Manufacturing of Large-Diameter Rolling Element Bearings by Steel-Steel Multimaterial Systemscitations
- 2020Studies on the Influence of Residual Stresses on the Fatigue Life of Rolling Bearings in Dependence on the Production Processescitations
- 2020Characterization of molybdenum based coatings on 100Cr6 bearing steel surfacescitations
- 2019Simulation of a steel-aluminum composite material subjected to rolling contact fatigue
- 2019Simulation of a steel-aluminum composite material subjected to rolling contact fatigue
- 2019Micro- and nanotribological characterization of molybdenum oxide based coatings on 100CR6 bearing steel surfacescitations
- 2019Manufacturing and evaluation of multi-material axial-bearing washers by tailored forming
- 2019Investigations on Graphene Platelets as Dry Lubricant and as Grease Additive for Sliding Contacts and Rolling Bearing Application
- 2019Theoretical investigations on the fatigue behavior of a tailored forming steel-aluminium bearing componentcitations
- 2018Graphenbasierte Schmierung von Wälzlagern
- 2018Comparing the Influence of Residual Stresses in Bearing Fatigue Life at Line and Point Contact
- 2018Herstellungsprozess und Wälzfestigkeit von hybriden Hochleistungsbauteilencitations
- 2018Tribologische Untersuchungen zur Entstehung von White Etching Cracks (WECs)citations
- 2018Fatigue life calculation of load-adapted hybrid angular contact ball bearingscitations
- 2018Untersuchung von maßgeschneiderten Umformbauteilen als tribologisch belastete Maschinenelementecitations
- 2018Tribological study on tailored-formed axial bearing washerscitations
Places of action
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article
Manufacturing and evaluation of multi-material axial-bearing washers by tailored forming
Abstract
Components subject to rolling contact fatigue, such as gears and rolling bearings, are among the fundamental machine elements in mechanical and vehicle engineering. Rolling bearings are generally not designed to be fatigue-resistant, as the necessary oversizing is not technically and economically marketable. In order to improve the load-bearing capacity, resource efficiency and application possibilities of rolling bearings and other possible multi-material solid components, a new process chain was developed at Leibniz University Hannover as a part of the Collaborative Research Centre 1153 “Tailored Forming”. Semi-finished products, already joined before the forming process, are used here to allow a further optimisation of joint quality by forming and finishing. In this paper, a plasma-powder-deposition welding process is presented, which enables precise material deposition and control of the welding depth. For this study, bearing washers (serving as rolling bearing raceways) of a cylindrical roller thrust bearing, similar to type 81212 with a multi-layer structure, were manufactured. A previously non-weldable high-performance material, steel AISI 5140, was used as the cladding layer. Depending on the degree of forming, grain-refinement within the welded material was achieved by thermo-mechanical treatment of the joining zone during the forming process. This grain-refinements lead to an improvement of the mechanical properties and thus, to a higher lifetime for washers of an axial cylindrical roller bearing, which were examined as an exemplary component on a fatigue test bench. To evaluate the bearing washers, the results of the bearing tests were compared with industrial bearings and deposition welded axial-bearing washers without subsequent forming. In addition, the bearing washers were analysed micro-tribologically and by scanning acoustic microscopy both after welding and after the forming process. Nano-scratch tests were carried out on the bearing washers to analyse the layer properties. Together with the ...