Results 11 to 20 of about 133,474 (276)

Correlating Ultrasonic Velocity in DC04 with Microstructure for Quantification of Ductile Damage

Journal of Manufacturing and Materials Processing, 2023
The detection of ductile damage by image-based methods is time-consuming and typically probes only small areas. It is therefore of great interest for various cold forming processes, such as sheet-bulk metal forming, to develop new methods that can be ...
Steffen Wackenrohr, Sebastian Herbst, Patrick Wöbbeking, Gregory Gerstein, Florian Nürnberger   +4 more
doaj   +1 more source

Sheet Bulk Forming of Thin-Walled Components with External Gearing through Upsetting Using Controllable Deformation Zone Method

Chinese Journal of Mechanical Engineering, 2021
Sheet-bulk metal forming (SBMF) is a promising process for manufacturing complex sheet components with functional elements. In this study, the entire forming process for a typical thin-walled component with external gearing is investigated, including ...
Xincun Zhuang, Meile Liang, Shengfa Zhu, Yin Zhu, Zhen Zhao   +4 more
doaj   +1 more source

Adapting the Surface Integrity of High-Speed Steel Tools for Sheet-Bulk Metal Forming

Journal of Manufacturing and Materials Processing, 2022
New manufacturing technologies, such as Sheet-Bulk Metal Forming, are facing the challenges of highly stressed tool surfaces which are limiting their service life.
Wolfgang Tillmann, Dominic Stangier, Alexander Meijer, Eugen Krebs, Alexander Ott, Timo Platt, Nelson Filipe Lopes Dias, Leif Hagen, Dirk Biermann   +8 more
doaj   +1 more source

Influence of Tailored Surfaces and Superimposed-Oscillation on Sheet-Bulk Metal Forming Operations

Journal of Manufacturing and Materials Processing, 2020
Producing complex sheet metal components in fewer process steps motivated the development of the innovative forming process called sheet-bulk metal forming (SBMF).
Bernd-Arno Behrens, Wolfgang Tillmann, Dirk Biermann, Sven Hübner, Dominic Stangier, Dennis Freiburg, Alexander Meijer, Sergej Koch, Daniel Rosenbusch, Philipp Müller   +9 more
doaj   +1 more source

SLASSY—An Assistance System for Performing Design for Manufacturing in Sheet-Bulk Metal Forming: Architecture and Self-Learning Aspects

AI, 2021
Substantial efforts have been made to integrate manufacturing- and design-relevant knowledge into product development processes. A common approach is to provide the relevant knowledge to the design engineers using a knowledge-based system (KBS) that, in ...
Christopher Sauer, Thilo Breitsprecher, Christof Küstner, Benjamin Schleich, Sandro Wartzack   +4 more
doaj   +1 more source

Pin Extrusion for Mechanical Joining from Orbital Formed Tailored Blanks with Local Material Pre-Distribution

Journal of Manufacturing and Materials Processing, 2022
Pin extrusion is a common process to realise pin structures in different geometrical dimensions for a subsequent joining operation. Nevertheless, the process of pin extrusion offers process limits regarding sheet thinning as a consequence of the punch ...
David Römisch, Andreas Hetzel, Simon Wituschek, Michael Lechner, Marion Merklein   +4 more
doaj   +1 more source

Multi-scale friction modeling for manufacturing processes: The boundary layer regime [PDF]

, 2012
This paper presents a multi-scale friction model for largescale forming simulations. A friction framework has been developed including the effect of surface changes due to normal loading and straining the underlying bulk material.
Hol, J., Karupannasamy, D.K., Meinders, V.T.   +2 more
core   +2 more sources

Dirac points with giant spin-orbit splitting in the electronic structure of two-dimensional transition-metal carbides [PDF]

, 2015
Two-dimensional (2D) materials, especially their most prominent member, graphene, have greatly influenced many scientific areas. Moreover, they have become a base for investigating the relativistic properties of condensed matter within the emerging field
Abrikosov, I. A., Eklund, P., Fashandi, H., Ivady, V., Katsnelson, M. I., Spetz, A. Lloyd, Кацнельсон, М. И.   +6 more
core   +5 more sources

A comparative investigation of the efficacy of CO2 and high power diode lasers for the forming of EN3 mild steel sheets [PDF]

, 2002
A comparative investigation of the effectiveness of a high power diode laser (HPDL) and a CO2 laser for the forming of thin section EN3 mild steel sheet has been conducted.
Albertini N., Arnet H., Chen G. F., Hennige T., Holt R. E., Holt R. E., Holzer S., Scully K., Sprenger D., Vollersten F., Vollersten F., Vollersten F., Vollersten F., Vollersten F., Vollersten F., Wilson J., Yau C. L.   +16 more
core   +1 more source

The Performance of 3D Printed Polymer Tools in Sheet Metal Forming

Metals, 2021
Additively manufactured polymer tools are evaluated for use in metal forming as prototype tools and in the attempt to make sheet metal more attractive to small production volumes.
Fabio Tondini, Alberto Basso, Ulfar Arinbjarnar, Chris Valentin Nielsen   +3 more
doaj   +1 more source