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eKonferencije.com: Behavior of Advanced High Strength Steels in Deep Drawing Processes

Behavior of Advanced High Strength Steels in Deep Drawing Processes

1. Mathias Liewald, University of Stuttgart, Institute for Metal Forming Technology , Germany
2. Ranko Radonjic

Current requirements for vehicle safety and weight reduction in automotive industry lead to the increased use of advanced high strength steels (AHSS). These materials are multi-phase steels which contain martensite, bainite and/or retained austenite, and they are usually used for manufacturing of dedicated car body components like rails, A and B – pillars or hood reinforcements, for which safety is superior criterion. These materials have less drawability, while springback amount after deep drawing process is tremendously higher compared to mild steels. Also they have greater tendency to wrinkle due to lack of adequate capacity of part holder and often a reduction in sheet thickness. This paper discusses behaviors of the AHSS in deep drawing process with the emphasis on formability and springback compensation.

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Datum: 14.02.2013.

DEMI 2013

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