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Hot metal gas forming of titanium grade 2 bent tubes

Temperierte Innenhochdruck-Umformung von Titan Grade 2 Hohlprofilen
: Paul, Alexander; Werner, Markus; Trân, Ricardo; Landgrebe, Dirk


American Institute of Physics -AIP-, New York:
20th International ESAFORM Conference on Material Forming 2017. Proceedings : 26th-28th April 2017, Dublin City University, Ireland
New York, N.Y.: AIP Press, 2017 (AIP Conference Proceedings 1896)
ISBN: 978-0-7354-1580-5
Art. 050009-1, 6 S.
International Conference on Material Forming (ESAFORM) <20, 2017, Dublin>
Fraunhofer IWU ()
hot metal gas forming; hot forming; titanium; Grade 2; Bent tubes; hollow profiles

Within the framework of investigations, an exhaust gas component made of Titanium Grade 2 was produced by means of Hot Metal Gas Forming (HMGF) at the Fraunhofer IWU in Chemnitz, Germany. The semi-finished products were two-fold bent, thermal joined, calibrated and pre-formed tubes. So far, a three-stage internal high-pressure forming process at room temperature plus two necessary intermediate heat treatments were used to produce the component. Due to its complexity as well as the limited forming ability of Titanium Grade 2 at room temperature an one step Hot Metal Gas Forming was developed to replace the former procedure.