Investigation of Thermal and Mechanical Properties of Quenchable High-Strength Steels in Hot Stamping
The interfacial heat transfer coefficient (IHTC) is determined in the industrial range of contact pressure applied during the hot stamping process of boron steel sheets, under similar conditions to those used in industrial practice. The mechanical properties and microstructure of the parts are also examined. Moreover, the influence of the stamping pressure on the IHTC is investigated in detail via mechanical property and microstructural characterization.
KeywordsContact Pressure Wire Electrical Discharge Machine Interfacial Heat Transfer Coefficient Boron Steel 22MnB5 Steel
The authors gratefully acknowledge the funding provided by the Department of Research and Universities of the Basque Government under Grant No. IT432-10, and the University of the Basque Country UPV/EHU under Program No. UFI 11/29. The authors also thank Gestamp GTH for having allowed them to use their facilities, which made this investigation possible.