Patent ID: 8646302

Claim:
A drawing tool for shaping and cooling a steel piece from a blank, the drawing tool comprising: at least one punch; and at least one matrix; wherein the punch and the matrix each include: at least a first portion corresponding to a hot area of the drawing tool; and at least a second portion corresponding to a cold area of the drawing tool; wherein, in the cold area of the drawing tool, the second portion of the punch and the second portion of the matrix are brought into contact with the blank when the drawing tool is closed; and wherein, in the hot area of the drawing tool, a heater is provided for heating said hot area to a temperature higher than 400° C.; and wherein, in the hot area, a distance (L), in addition to the blank thickness (e) is provided between the punch and the matrix when the drawing tool is closed, is related to the temperature (T) of the hot area, and is given by the formula: T= 110·(6 −L ), with L>0.2 and 400≦T<600, L being expressed in mm and T in ° C.