Strut and method of forming strut

Patent metadata

Field	Value
Publication number	US-2019091749-A1
Application number	US-201816112827-A
Country	US
Kind code	A1
Filing date	Aug 27, 2018
Priority date	Sep 27, 2017
Publication date	Mar 28, 2019
Grant date	—

Abstract

A method of forming a strut includes providing a ring with a threaded section, coupling a mandrel to the ring, and electroforming a metallic layer over the mandrel and ring. The strut can include an integral monolithic body.

First claim

What is claimed is:

1 . A method of forming a strut, comprising:
providing a ring having an internal threaded section; coupling a mandrel to the ring having the internal threaded section; electroforming a metallic layer over exposed surfaces of the ring having the internal threaded section and outer surfaces of the mandrel; and removing the mandrel to define the strut having an integral monolithic body with the internal threaded section.

2 . The method of claim 1 wherein the coupling the mandrel to the ring having the internal threaded section includes injection molding the mandrel.

3 . The method of claim 1 , further comprising attaching a strut end fitting within the internal threaded section.

4 . The method of claim 3 wherein the strut end fitting includes an external threaded section and the attaching comprises threading the external threaded section of the strut end fitting into the internal threaded section of the integral monolithic body.

5 . The method of claim 1 , further comprising electroforming an additional layer over the metallic layer on the ring.

6 . The method of claim 1 wherein the mandrel is a sacrificial mandrel made of wax or plastic.

7 . The method of claim 1 wherein two rings are provided and the mandrel is coupled between the two rings.

8 . A method of forming a strut, comprising:
providing a ring having an internal threaded section; coupling a metal mandrel to the ring having the internal threaded section; and electroforming a metallic layer over exposed surfaces of the ring having the internal threaded section and outer surfaces of the mandrel to define a strut rod having an integral monolithic body with the internal threaded section.

9 . The method of claim 8 wherein the metal mandrel is a hollow aluminum mandrel.

10 . The method of claim 9 wherein the hollow aluminum mandrel includes a threaded section and the ring further includes an external threaded section and the coupling includes threading the hollow aluminum mandrel onto the external threaded section.

11 . The method of claim 9 wherein the coupling includes welding the hollow aluminum mandrel to the ring.

12 . The method of claim 8 further comprising drawing a metal body to form the metal mandrel.

13 . The method of claim 8 , further comprising attaching a strut end fitting within the internal threaded section.

14 . The method of claim 8 , further comprising electroforming an additional layer over the metallic layer on the ring.

15 . The method of claim 8 wherein two rings are provided and the metal mandrel is coupled between the two rings.

Assignees

• Ge Aviat Systems Ltd

Inventors

• Rajagopal Sridhar
• Paramashivaiah Sagar
• Sebastian Merin
• Kumar Sandeep
• Jonnalagadda Dattu Guruvenkata

Classifications

• F16B37/048

  Non-releasable devices (F16B37/044, F16B37/045 and F16B37/06 take precedence) · CPC title

• B64D27/12

  within, or attached to, wings · CPC title

• C25D1/02 Primary

  Tubes; Rings; Hollow bodies · CPC title

• B23P15/00 Primary

  Making specific metal objects by operations not covered by a single other subclass or a group in this subclass · CPC title

• C25D1/00

  Electroforming · CPC title