Method of making variable thickness tubular member for vehicles

Details Method of making variable thickness tubular member for vehicles Method of making variable thickness tubular member for vehicles

2008-05-13

2008-05-13

Jones, David B (Department: 3725)

Metal deforming

By application of fluent medium, or energy field

Using fixed die

C072S062000, C072S370220, C029S421100

Reexamination Certificate

active

07370504

ABSTRACT:
A method of making a variable thickness tubular member for a vehicle includes the steps of providing a tubular member and positioning a mandrel inside of the tubular member. The method also includes the steps of hydroforming the tubular member into a variable thickness tubular member having a variable wall thickness along its perimeter.

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