Tailored forming technology for three dimensional components

Approaches to heating and forming

verfasst von: Bernd Arno Behrens, Anas Bouguecha, Conrad Frischkorn, Adis Huskic, Anna Stakhieva, Deniz Duran
Abstract: The continuous need for lightweight components calls for a means to extensively utilise lighter three dimensional components in design and production without compromising on the strength. In order to address this need, suitable process chain possibilities to manufacture high performance hybrid components are being researched at Leibniz Universität Hannover in the context of the Collaborative Research Centre (CRC) 1153. In the construction of hybrid components in the CRC 1153, two different materials are essentially involved; one of which is of higher mechanical strength and situated in the area under loading (mainly steel variants), whereas the rest of the bulk is constituted by the lightweight material (mainly aluminium alloy variants). In first step of the process chain, hybrid semi-finished workpieces are manufactured by joining the two materials using a process such as friction welding, laser welding or compound extrusion. As a result of joining, the joining zone is accompanied by irregular microstructure and brittle intermetallic phases. Therefore, it should be treated by thermomechanical processing during forming; otherwise, the manufactured components are likely to fail in operation. The primary challenge for forming is a suitable tooling design that is supposed to provide a good control over the joining zone. Moreover, a tailored heating strategy is required to obtain a material-specific initial temperature distribution along the semi-finished hybrid workpieces. In this paper, associated solution approaches to these challenges are presented for two different hybrid components: a bearing bushing and a stepped shaft.
Organisationseinheit(en): Institut für Umformtechnik und Umformmaschinen
Typ: Paper
Publikationsdatum: 2016
Publikationsstatus: Veröffentlicht
Peer-reviewed: Ja
ASJC Scopus Sachgebiete: Maschinenbau, Metalle und Legierungen, Werkstoffmechanik
: Details im Forschungsportal „Research@Leibniz University“

BibTeX

@conference{4ca961627f244606b111ed94c77be778,
title = "Tailored forming technology for three dimensional components: Approaches to heating and forming",
abstract = "The continuous need for lightweight components calls for a means to extensively utilise lighter three dimensional components in design and production without compromising on the strength. In order to address this need, suitable process chain possibilities to manufacture high performance hybrid components are being researched at Leibniz Universit{\"a}t Hannover in the context of the Collaborative Research Centre (CRC) 1153. In the construction of hybrid components in the CRC 1153, two different materials are essentially involved; one of which is of higher mechanical strength and situated in the area under loading (mainly steel variants), whereas the rest of the bulk is constituted by the lightweight material (mainly aluminium alloy variants). In first step of the process chain, hybrid semi-finished workpieces are manufactured by joining the two materials using a process such as friction welding, laser welding or compound extrusion. As a result of joining, the joining zone is accompanied by irregular microstructure and brittle intermetallic phases. Therefore, it should be treated by thermomechanical processing during forming; otherwise, the manufactured components are likely to fail in operation. The primary challenge for forming is a suitable tooling design that is supposed to provide a good control over the joining zone. Moreover, a tailored heating strategy is required to obtain a material-specific initial temperature distribution along the semi-finished hybrid workpieces. In this paper, associated solution approaches to these challenges are presented for two different hybrid components: a bearing bushing and a stepped shaft.",
keywords = "Extrusion, Forging, Induction heating, Joining zone, Tailored forming",
author = "Behrens, {Bernd Arno} and Anas Bouguecha and Conrad Frischkorn and Adis Huskic and Anna Stakhieva and Deniz Duran",
year = "2016",
language = "English",
note = "5th International Conference on ThermoMechanical Processing, TMP 2016 ; Conference date: 26-10-2016 Through 28-10-2016",
}