| 摘要 |
The invention relates to a method for producing a sheet steel component having areas of different hardness or ductility, wherein either the sheet steel is cold formed into the component in a tool from a blank and the formed component is then heated to a temperature above the austenitizing temperature and is inserted into a second tool for the purpose of hardening and is quench-hardened in the second tool, or wherein a blank is heated to a temperature above the austenitizing temperature and then is inserted into a forming tool for the purpose of forming and quench-hardening, is formed and quench-hardened there, wherein either during quench-hardening, in areas that should receive a lower hardness or higher ductility, energy is introduced into said areas using at least one induction coil in such a way that a reduced or no quench-hardening takes place, because the cooling down takes place at a temperature above the critical hardening rate, or the temperature in said area is held at a desired higher level until shaping, or the hardened component, after shaping, is bought into or onto another form after the shaping, in or on which inductive action are applied to the component in partial areas in such a way that the existing hardness is partially or completely eliminated. |
