METHOD FOR PRODUCING A MOTOR VEHICLE COMPONENT WITH AT LEAST TWO REGIONS OF DIFFERENT STRENGTHS
The invention relates to a method for producing a motor vehicle component (14) with at least two regions of different strengths and a protective layer. The method is characterized by the following steps: - providing pre-coated blanks (2), in particular precut blanks, made of a steel alloy which can...
Gespeichert in:
Hauptverfasser: | , , , , , |
---|---|
Format: | Patent |
Sprache: | chi ; eng |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | The invention relates to a method for producing a motor vehicle component (14) with at least two regions of different strengths and a protective layer. The method is characterized by the following steps: - providing pre-coated blanks (2), in particular precut blanks, made of a steel alloy which can be hardened, - homogenously heating the blank to a heating temperature which is at least equal to orgreater than the AC1 temperature, preferable equal to or greater than the AC3 temperature - maintaining the heating temperature such that the pre-coating alloys with the blank (2), - homogenously intercooling the alloyed blank (2) to an intercooling temperature between 450 and 700 DEG C, - partially heating the blank (2) from the intercooling temperature in regions of a first type (10) to at least the AC3 temperature and keeping regions of a second type (11) substantially at the intercooling temperature, - hot-forming and press-hardening the partially tempered blank (12) so as to form a motorvehicle component (14), w |
---|