公开(公告)号：US20230201950A1

公开(公告)日：2023-06-29

申请号：US17982129

申请日：2022-11-07

Applicant: Spirit AeroSystems, Inc.

Inventor： James Michael Wagner ,  Rahbar Nasserrafi ,  Paul Ray Toivonen ,  Heath Edward Misak ,  Craig Matthew Clasper

IPC: B23K11/20 ,  B23K11/00

CPC classification number: B23K11/20 ,  B23K11/0006

Abstract: A method of bonding two or more metallic components into a single piece. The bonding surfaces of the metallic components are protected from reaction with the environment. A force is applied to the metallic components to push the bonding surfaces together. Simultaneous with applying the force, an electric current is passed through the bonding surfaces to joule heat and weld the bonding surfaces together to form the single piece. The bonding surfaces may be protected by plating with a noble metal, applying a coating, shielding with a noble gas, or placing into a vacuum. A press may be used to apply the force. The force and the electric current may be sufficient to push out metal around the joint of the bonding surfaces, and at least one of the bonding surfaces may be drafted to facilitate pushing out the metal. The electric current may be pulsed to induce electroplasticity.

公开(公告)号：US20230271242A1

公开(公告)日：2023-08-31

申请号：US17682878

申请日：2022-02-28

Applicant: Spirit AeroSystems, Inc.

Inventor： James Michael Wagner, Jr. ,  Theodore Joseph Eilert ,  Rahbar Nasserrafi ,  Craig Matthew Clasper ,  Gerald Eugene Hicks, Jr.

IPC: B21D37/16 ,  C21D9/46 ,  C21D1/673 ,  B21D22/02

CPC classification number: B21D37/16 ,  C21D9/46 ,  C21D1/673 ,  B21D22/022

Abstract: A method of manufacturing a complex-shaped metal part, including the steps of applying a metallic sheath around a sheet metal workpiece and applying an electric current through the workpiece in the metallic sheath to heat the workpiece. The method also includes shaping the workpiece in the metallic sheath into a complex-shaped metal part while it is being heated. The shaping can be performed between two ceramic dies or using other techniques for forming complex shapes and curvatures into the workpiece. The method then may include cooling the complex-shaped metal part and removing the metallic sheath from the complex-shaped metal part. This method can allow reactive and refractory material to be safely heated without oxidation when heating/forming in air when the workpiece is sealed within a sacrificial stainless steel or nickel alloy envelope to protect the enclosed workpiece.