HOT STAMPING – INDIRECT PROCESS
Hot stamping is a process to manufacture components from high-tensile and super high strength sheets (22MnB5 or the like). The high strength is achieved by the martensitic transformation in cooled tools during quenching. Two processes for this have taken hold of the market. With indirect hot stamping, the sheet is shaped to a component in a soft, cold state, subsequently austenitized and quenched between cooled tools.
HOT STAMPING – DIRECT PROCESS
With direct hot stamping, the shaping and quenching of the previously austenitized sheet takes place in one work step. After quenching, the components are cut and shaped to their final contour. If required, the component surface may also be conditioned.