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Extruded Hollow Shafts for Efficient Drive Solutions in E-Mobility

An increasing trend toward electrically powered vehicles can now be discerned clearly worldwide. However, vehicles powered by electricity alone are still contending with the problems of high procurement costs and low range, and are therefore penetrating the market only very slowly.

In the research project ESKAM (German: Elektrisches SKalierbares Achs-Modul = Electrical Scalable Axle Module - http://www.iwu.fraunhofer.de/de/presse_und_medien/ESKAM.html) funded by the Federal Ministry of Education and Research, a consortium comprising 11 partners, including Hirschvogel, has come together to improve this situation. The ambitious goal has been set to develop a highly integrated, electrically driven axle module. A major priority was to ensure implementation of lightweight design technologies suitable for large-series production - a field in which Hirschvogel was able to bring its comprehensive development and production know-how to the table.

Hirschvogel decided to produce the output shaft of the transmission gearbox in this project. The result of an intensive engineering phase was a very ambitiously designed cold forging process which included the forging of ready-for-assembly splines.