Development of a test method for determining the cracking susceptibility of resistance spot welded high strength steel sheets
Abstract
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.
