Challenges in compound forging of steel-aluminum parts

verfasst von
Klaus Georg Kosch, Bernd Arno Behrens
Abstract

In times of increasing energy costs automotive lightweight construction is gaining in importance. This paper deals with the production of hybrid steel-aluminum compounds by forging. The compound forging process is a promising method to successfully manufacture functional parts by applying resource-saving process steps. Nevertheless, challenges resulting from different material properties must be solved. The heating of hybrid material work pieces made of steel and aluminum is a great challenge. Steel is forged at a temperature of at least T st = 900°C, while aluminum should not exceed a temperature of T Al = 500°C For achieving the required temperature gradient extensive experimental investigations have been carried out. Intermetallic phases form during the manufacturing process and can influence the bonding and the global part quality. In addition, methods for the characterization of the joining zone between the materials steel and aluminum are analyzed and the factors influencing the formation of intermetallic phases are determined experimentally.

Organisationseinheit(en)
Institut für Umformtechnik und Umformmaschinen
Typ
Aufsatz in Konferenzband
Seiten
169-176
Anzahl der Seiten
8
Publikationsdatum
15.05.2012
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Physik der kondensierten Materie, Werkstoffmechanik, Metalle und Legierungen
 

Details im Forschungsportal „Research@Leibniz University“