US 12,252,183 B2
Method for manufacturing a motor vehicle structural component from an extruded multichamber hollow profile
Gaurav Ahuja, Lasalle (CA); Vijay Michael, Grand Rapids, MI (US); Per Ivar Stemnes, Raufoss (NO); and Jochem Grewe, Salzkotten (DE)
Assigned to BENTELER AUTOMOBILTECHNIK GMBH, Paderborn (DE)
Filed by BENTELER AUTOMOBILTECHNIK GMBH, Paderborn (DE)
Filed on Apr. 24, 2024, as Appl. No. 18/644,129.
Application 18/644,129 is a continuation of application No. 17/539,239, filed on Dec. 1, 2021, granted, now 11,999,413.
Prior Publication US 2024/0367728 A1, Nov. 7, 2024
Int. Cl. B62D 29/00 (2006.01); B21C 23/12 (2006.01); B21C 23/14 (2006.01)
CPC B62D 29/008 (2013.01) [B21C 23/12 (2013.01); B21C 23/142 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method for manufacturing a motor vehicle structural component from an extruded multichamber hollow profile, the method comprising:
a) providing an extruded profile with at least two precursor hollow chambers which are separated from one another by an inner wall, wherein in at least one outer wall of at least one precursor hollow chamber in cross-section perpendicularly to a longitudinal extent of the extruded profile has a region with non-linear course; and
b) forming of the extruded profile in at least one of its end regions into the motor vehicle structural component, wherein at least the region with non-linear course of the at least one outer wall of the at least one precursor hollow chamber, with non-linear course in cross-section, is at least partially straightened, with a change in cross-section of the respective precursor hollow chamber into the cross-section of the corresponding hollow chamber of the motor vehicle structural component,
wherein at least one of the hollow chambers of the motor vehicle structural component has a smaller width than the corresponding precursor hollow chamber of the extruded profile and a greater height than the corresponding precursor hollow chamber of the extruded profile,
or
wherein at least one of the hollow chambers of the motor vehicle structural component has a greater width than the corresponding precursor hollow chamber of the extruded profile and a smaller height than the corresponding precursor hollow chamber of the extruded profile.