Hot stamping is today proving to be a challenging technology for competitiveness in the automotive industry. The high formability and the reduced springback exhibited by high strength steels at elevated temperatures, together with the microstructural evolution control during simultaneous forming and quenching, are the main features that make this technology suitable to produce complex parts with very high strength-to-weight ratio. In this paper, the material formability during processing is evaluated through a novel experimental procedure, taking into account the effects of microstructure phenomena due to phase transformation.
Material formability and microstructure phenomena in hot stamping
GHIOTTI, ANDREA;BRUSCHI, STEFANIA;
2008
Abstract
Hot stamping is today proving to be a challenging technology for competitiveness in the automotive industry. The high formability and the reduced springback exhibited by high strength steels at elevated temperatures, together with the microstructural evolution control during simultaneous forming and quenching, are the main features that make this technology suitable to produce complex parts with very high strength-to-weight ratio. In this paper, the material formability during processing is evaluated through a novel experimental procedure, taking into account the effects of microstructure phenomena due to phase transformation.File in questo prodotto:
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