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Heated gripper concept to optimize heat transfer of fiber-reinforced-thermoplastics in automated thermoforming processes

Bruns, Christopher; Bohne, Florian; Micke-Camuz, Moritz; Behrens, Bernd-Arno; Raatz, Annika (Amsterdam : Elsevier B.V., 2019)

Today composite materials become increasingly more common to use for lightweight applications. This paper introduces a simulation approach for a handling and forming process. This process focusses on the robot based gripping, ...
Non-local ductile damage formulations for sheet bulk metal forming

Beese, Steffen; Loehnert, Stefan; Wriggers, Peter (Bristol : Institute of Physics Publishing, 2016)

A ductile damage model for sheet bulk metal forming processes and its efficient and accurate treatment in the context of the Finite Element Method is presented. The damage is introduced as a non-local field to overcome ...
Numerical analysis of a deep drawing process with additional force transmission for an extension of the process limits

Behrens, Bernd-Arno; Bonk, Christian; Grbic, Nenad; Vucetic, Milan (Bristol : Institute of Physics Publishing, 2017)

By sheet metal forming processes the forming limits and part characteristics are defined through the process specific loads. In deep drawing processes the maximum deep draw ratios as well as the springback behaviour of the ...
Numerical and Experimental Investigation of Thermoplastics in Multi-Axis Forming Processes

Dröder, Klaus; Behrens, Bernd-Arno; Bohne, Florian; Chugreev, Alexander; Schulze, Henrik; Wonnenberg, Birk (Amsterdam [u.a.] : Elsevier, 2019)

Process planning for multi-axis forming presses is a particular challenge. This process provides the option to actively influencing the material flow in the forming process by defining a six dimensional tool motion path ...
Numerical simulation and experimental validation of the cladding material distribution of hybrid semi-finished products produced by deposition welding and cross-wedge rolling

Kruse, Jens; Mildebrath, Maximilian; Budde, Laura; Coors, Timm; Faqiri, Mohamad Yusuf; Barroi, Alexander; Stonis, Malte; Hassel, Thomas; Pape, Florian; Lammers, Marius; Hermsdorf, Jörg; Kaierle, Stefan; Overmeyer, Ludger; Poll, Gerhard (Basel : MDPI AG, 2020)

The service life of rolling contacts is dependent on many factors. The choice of materials in particular has a major influence on when, for example, a ball bearing may fail. Within an exemplary process chain for the ...

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