Cross member for vehicle bumper bar and method for making same

Details Cross member for vehicle bumper bar and method for making same Cross member for vehicle bumper bar and method for making same

2005-09-27

2005-09-27

Gutman, H. (Department: 3612)

Vehicle fenders

Buffer or bumper type

C276S020000

Reexamination Certificate

active

06948749

ABSTRACT:
A two step system or stage is provided to manufacturer a bumper of “B” shape cross section including a roll forming-welding stage where a straight cross member of a length to mount on the front or rear of various models of automobiles and the bending stage where any curvature or sweep is introduced into the cross member as required by the design of the automobile. The roll forming welding stage include the spot or tack welding of the front wall to the web followed immediately by welding together without any gaps therebetween the abutting longitudinal edges utilizing a high frequency welder. Thus, the “B” shaped cross section of the bumper may be used to make different bumpers of various lengths and curvatures.

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