Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK

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  • Publication
    Development of a test method for determining the cracking susceptibility of resistance spot welded high strength steel sheets
    ( 2014)
    Rethmeier, Michael
    ;
    Suwala, Hubert
    In this study a test method for determining the cracking susceptibility of resistance spot welded high strength steel sheets was investigated. The development of a suitable test procedure is based on the External-Loaded Hot Crack Test (PVC-Test). The test modification for resistance spot welding contains a constant tensile force load. The test method for determining the cracking susceptibility was experimentally verified for a high strength steel, a transformation induced plasticity steel (TRIP) and two complex phase steel (CP). The result shows that the external loaded test method has a significant influence on the crack formation of the investigated steels.