Institut für Transport- und Automatisierungstechnik Forschung Publikationen
Influence of an oxygen-free atmosphere on laser beam brazing of aluminium with prior surface deoxidation by pulsed laser radiation

Basic study on the process combination of deposition welding and subsequent hot bulk forming

Kategorien Zeitschriften/Aufsätze
Jahr 2013
Autoren Behrens, B.-A.; Overmeyer, L.; Barroi, A.; Frischkorn, C.; Hermsdorf, J.; Kaierle, S.; Stonis, M.; Huskic, A.
Veröffentlicht in Production Engineering, Springer-Verlag
Beschreibung

Today most technical parts and components are made of monolithic materials. Nevertheless, the previously used monolithic materials reach their technological and constructive limits, so that an improvement of the component properties can be realized by hybrid parts. Forging of previously joined semi-finished products to net shape hybrid components is a promising method to produce functional adapted parts in a few process steps. This new process chain offers a number of advantages compared to other manufacturing technologies. Examples are the production of specific load-adapted forging parts with a high level of material utilization, an improvement of the joining zone caused by the followed forming process and an easy to implement joining process because of the simple geometries of the semi-finished products. This paper describes the production process of hybrid steel parts, which are produced by a combination of a deposition welding process with a subsequent hot forging (upsetting) or cross-wedge-rolling. It could be shown that the innovative process chain enables the production of hybrid parts whereby the forging processes lead to an improvement of the mechanical properties of the laser deposited material.

 

DOI 10.1007/s11740-013-0478-y