General Electric Company
METHOD OF MAKING 3D TUBE AND 3D TUBE MADE THEREBY

Abstract:

A method of making a 3D tube and the 3D tube made thereby. The method comprises: inserting a deflated pre-formed bladder into the 3D tube; and inflating the pre-formed bladder to deform the 3D tube and make the 3D tube have a substantially similar shape as that of the pre-formed bladder inflated.