Method to make a vehicle door
AssigneeGestamp Hardtech AB
InventorsHans Bodin, Martin Jonsson
Life of this patent
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Abstract
A vehicle door is manufactured by producing a supportive frame (10) and a waist rail (14) and a side impact guard beam (22) which are formed integrally with the supportive frame. The door is produced by hot stamping a steel sheet blank into the shape of a supportive door frame that includes an integral waist rail (14) and a side impact guard beam (22), and hardening the shaped door frame while the frame remains in the shaping tools, and fastening an outer panel (31) to the finished door such that the side collision guard beam (22) of the frame will lie close to the outer panel (31).
Claims14
A method of manufacturing a vehicle door, said method comprising the steps of hot stamping a sheet steel blank into the form of a supportive door frame which comprises a ring shaped hat beam having a crown facing in towards the vehicle interior and side flanges of varying widths;
- hardening the formed door frame while it remains in forming tools;
- and, when finishing the door, fastening an outer panel on an outer one of the side flanges.
Dependencies are inferred from the claim text.