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Opportunities for progressive applications by means of integrating and combining various technologies with hydroforming

: Neugebauer, Reimund; Sterzing, A.; Schieck, F.

Yuan, S. ; China Society for Technology of Plasticity; Harbin Institute of Technology, Harbin:
Tube Hydroforming Technology : June 4-5, 2007, Harbin
Harbin, 2007
ISBN: 978-7-5603-2535-4
International Conference on Tube Hydroforming (TUBEHYDRO) <2007, Harbin>
Conference Paper
Fraunhofer IWU ()
hydroforming; integration of technology; piercing; joining; heat treatment

Parts manufactured using the hydroforming process are state of the art for a number of applications, in particular in car body structures such as engine cradles, axle frames, side members and exhaust parts. Unfortunately, integration of these parts within the vehicle structure frequently involves thermal technologies such as welding. Consequently the tolerances and other beneficial properties of hydroformed parts whose primary characteristic is precision will be detrimentally affected by the influence of temperature. There are additional disadvantages for structures based on hydroforming in terms of process flow in an assembly line, such as complex handling and joining with a large number of process steps.