Within the Salzgitter Group a possible application of a new Fe-Mn-Al-Si-steel was evaluated in a cooperation of the R&D-department, the steel production, the tube manufacturing and the hydroforming experts. As shown in this article the good mechanical-technological properties of the HSD-steel could be transferred to an HFI-welded HSD-tube with tensile strength values of ≈ TS (Rm) of 950 MPa and a total elongation TE (A5) of 60 %. Using such a semi-finished product, for the hydroforming process, enables the engineers in the automotive industry to increase component performance. As an example of the possibilities of the component performance, the reachable component strength was evaluated within a finite element analysis of a demonstrator component. As shown in this analysis component strength of over 1500 MPa is reachable with sufficient ductility remaining. Detailed results on real parts are planned for the oral presentation.
Process chain for new steel grades - from semifinished product precision steel tube to hydroforming: Potentials for automotive light weight construction for chassis and car body
Prozesskette für neue Stahlgüten - vom Präzisionsstahlrohr-Halbzeug zum Hydroumformen: Potenziale für den Fahrzeugleichtbau für Fahrzeugrahmen und Karosserie
2014
9 Seiten, 8 Bilder, 1 Tabelle, 8 Quellen
Aufsatz (Konferenz)
Englisch
Stahlrohr , Hydroformteil , Hydroumformen , Hochgeschwindigkeitsumformen , Kaltumformen , Halbzeug , Fahrzeugrahmen , Karosserie , Manganstahl , Leichtbau , Anwendung im Fahrzeugbau , mechanische Eigenschaft , Spannungs-Dehnungs-Diagramm , Fertigungsverfahren , geschweißtes Rohr , Kaltziehen , Werkstoffvergleich , Kaltverfestigung , Finite-Elemente-Analyse , DIN-Norm , Hochfrequenzschweißen
Hydroforming high strength steel tube for automotive structural applications using expansion
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|Hydroforming High Strength Steel Tube for Automotive Structural Applications Using Expansion
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|Hydroforming High Strength Steel Tube for Automotive Structural Applications Using Expansion
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|Hydroforming High Strength Steel Tube for Automotive Structural Applications Using Expansion
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