Method and apparatus for thermoforming of steel sheets

A method for transforming steel sheets and more particularly to methods for press hardening of steel sheet, wherein a heated to a temperature above AC characterized in that the punch (2) until reaching the form-fit and / or exceeding a predetermined path of the punch and / or a predetermined pressing force of the stamp onto the board (7) and / or the die (into the die (3) 3 ) and / or to the exceeding of a predetermined pressing force of the punch, the punch (3) without or without significant change in speed (in the female mold 3) is retracted, and an apparatus for performing the method.