Comparison of Material Behavior and Economic Effects of Cold and High Temperature Forming Technologies Applied to High-Strength Steels

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The focus of forming high-strength steel at elevated temperature is to improve its forming properties like elongation and to reduce the power requirements during the forming process in opposite to cold forming. Because of the undefined and large spring-back effects parts made by cold forming are not able to achieve the demanded dimensional accuracy, which is necessary for laser welding operations in car body assembly. The reduction of the spring-back behavior is another advantage of the temperature controlled forming technology. On the other side the forming at elevated temperatures requires increased costs for forming tools and tempering equipment. For a fundamental evaluation of this technology, expenditures for the complete process chain have to be considered.

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101-108

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May 2005

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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[1] DFB-Forschungsbericht Nr. 16 "Untersuchung zur temperaturbedingten Beeinflussung des Werkstoffflusses und des Reibvorganges beim Tiefziehen von Blechen.

Google Scholar

[2] M. Weber: Wirtschaftlicher Einsatz von metallischen Werkstoffen in der Karosserie. Magnesium im Fahrzeugbau, Sindelfingen (2003).

Google Scholar

[3] K. Dröder: Untersuchung zum Umformen von Feinblechen aus Magnesiumknetlegierung. Dissertation, Hannover (1999).

Google Scholar

[4] C. Hoff: Auslegung des Prozessfensters für die Warmumformung höchstfester Vergütungsstähle bei erhöhten Temperaturen. Forschungsvereinigung Stahlanwendung e.V. Projektnr. P644, Erlangen (2004).

Google Scholar

[5] MAINE project, co-financed by SAB bank Saxony.

Google Scholar

[6] Information of Volkswagen AG (Kassel).

Google Scholar

[7] Systemlösungen zur Umformung höherfester Stähle. Pressearchiv der Schuler AG, 24. 09. (2004).

Google Scholar

[8] Bessere Leichtbauteile durch Presshärten. Schuler AG, Industrieanzeiger, Ausgabe 2004/027, p.16.

Google Scholar

[9] T. Heller: 22MnB5 für die Warmumformung. Werkstoffkompetenzzentrum ThyssenKruppStahl, (2004).

Google Scholar