| 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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Grodotzki, Joshua
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2025Soziotechnische Systeme - Symbiose von Mensch & Maschine
- 2024Sequentially tailored profiles with adjustable transition zones by roll-slide-drawingcitations
- 2024Controlling the Damage Evolution in Roll Forming of a V-Section by Elastomer Rollers
- 2024Komplexität beherrschen, Kreisläufe schließen - Soziotechnische Systeme für ressourceneffiziente Leichtbaustrukturen
- 2024Tailoring the Hardness in Multi-stage Press Hardening of 22MnB5 Sheet Material in a Progressive Die
- 2024Augmented reality based control of autonomous mobile robots
- 2024Potential and Limits of Augmented Reality in Engineering Education and Industry 4.0
- 2024Process Development for Passive Granular Media-Based Tube Press Hardening
- 2024Characterization of Tool Surface Properties Generated by Directed Energy Deposition and Subsequent Ball Burnishingcitations
- 2024Quick prediction of thinning in stretch forming of hat-shaped profiles during multi-stage hot sheet metal formingcitations
- 2024Enhancing the immersion of augmented reality through haptic feedback
- 2023Soft sensors for property-controlled multi-stage press hardening of 22MnB5
- 2023Comparative analysis of remote, hands-on, and human-remote laboratories in manufacturing education
- 2023Augmented Reality Image Correlation App: Algorithms and Synthetic Verification
- 2023Introducing a general-purpose augmented reality platform for the use in engineering educationcitations
- 2023Numerical and experimental analysis of the isothermal high temperature pneumoforming process
- 2023Einfluss der Herstellungsroute auf die Umformbarkeit von Cr-Mn-Verbundwerkstoffen für das Presshärten
- 2021Engineering education amid a global pandemiccitations
- 2020Remote-Labore in der Ingenieurausbildungcitations
- 2020Remote lab to illustrate the influence of process parameters on product properties in additive manufacturing
- 2020Development of a remote tube bending lab to illustrate springback and determine process limits
- 2020Development of a remote compression test lab for engineering educationcitations
- 2020Augmented reality application for the mobile measurement of strain distributionscitations
- 2020Remote laboratories in engineering education − deriving guidelines for their implementation and operation
- 2018Remote and virtual labs for engineering education 4.0citations
- 2018Virtual und Augmented Reality in der MINT-Lehre
- 2017Demonstration of deep drawing experiments in a remote lab environment
- 2017Development of a FEM-lab for the virtual experimentation in forming processescitations
- 2017Material flow analysis for the incremental sheet-bulk gearing by rotating toolscitations
Places of action
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article
Characterization of Tool Surface Properties Generated by Directed Energy Deposition and Subsequent Ball Burnishing
Abstract
<jats:title>Abstract</jats:title><jats:p>By Directed Energy Deposition (DED) a flexible design of cooling channels in forming tools, e.g. hot stamping, with a variety of sizes and a high positioning flexibility compared to machining processes is possible. The subsequent ball burnishing of the tool surfaces in combination with a variation of the DED process parameters enables a control of the tool surface properties and the friction behavior. Parameters such as the ball burnishing pressure or the path overlapping in the DED process are investigated to quantify their effects on roughness, hardness, friction, residual stresses and heat transfer coefficient of generic tool surfaces. The friction coefficient at elevated temperatures depends strongly on the surface roughness of the tool steel surfaces generated by DED and ball burnishing. The latter process improves the surface integrity: the roughness peaks are leveled by up to 75 %, the hardness and the residual stresses are enhanced by up to 20 % and 70 %, respectively. However, the roughness of the tool surfaces is determined mainly by the path overlapping of the welded beads in the DED process. Despite the higher surface roughness, the heat transfer coefficient is in the range of conventionally manufactured tool surfaces of up to 2,700 W/m2K for contact pressures up to 40 MPa. First hot stamping experiments demonstrate that the tools manufactured by the novel process combination are able to manufacture 22MnB5 hat profiles with an increased and more homogenous hardness as well as more homogeneous thickness distribution compared to conventionally manufactured tools.</jats:p>