Plated tubular lattice structure

Patent metadata

Field	Value
Publication number	US-9789664-B2
Application number	US-201414903305-A
Country	US
Kind code	B2
Filing date	Jul 9, 2014
Priority date	Jul 9, 2013
Publication date	Oct 17, 2017
Grant date	Oct 17, 2017

Abstract

A plated tubular lattice structure is described. The plated tubular lattice structure may comprise a backbone structure which may include a plurality of axial posts and a plurality of pyramidal structures extending laterally from the axial posts and connecting the axial posts at nodes. The plated tubular lattice structure may further comprise a metal plating layer plated on an outer surface of the backbone structure.

First claim

What is claimed is:

1. A plated tubular lattice structure, comprising:
a backbone structure including
a plurality of axial posts aligned in parallel, and
a plurality of pyramidal structures extending laterally from the axial posts and connecting the axial posts at nodes; and
a metal plating layer on an activated outer surface of the backbone structure; and
a polymer coating an outer surface of the metal plating layer.

2. The plated tubular lattice structure of claim 1 , wherein the backbone structure is formed from a composite of continuous fibers in a resin.

3. The plated tubular lattice structure of claim 2 , wherein the continuous fibers are selected from the group consisting of carbon fibers, fiberglass, and aramid fibers.

4. The plated tubular lattice structure of claim 1 , wherein the backbone structure is formed from a polymeric material.

5. The plated tubular lattice structure of claim 4 , wherein the polymeric material includes a hollow center.

6. The plated tubular lattice structure of claim 4 , wherein the polymeric material is a thermoplastic material selected from the group consisting of polyetherimide, thermoplastic polyimide, polyether ether ketone, polyether ketone ketone, polysulfone, polyamide, polyphenylene sulfide, polyester, polyimide, and combinations thereof.

7. The plated tubular lattice structure of claim 4 , wherein the polymeric material is a thermoset material selected from the group consisting of a condensation polyimide, an addition polyimide, an epoxy cured with an aliphatic amine, an epoxy cured with an aromatic amine, an epoxy cured with an anhydride, a cyanate ester, a phenolic, a polyester, a polybenzoxazine, a polyurethane, a polyacrylate, a polymethacrylate, a thermoset silicone, and combinations thereof.

8. The plated tubular lattice structure of claim 1 , wherein the backbone structure comprises a polymer substrate molded around a composite of continuous fibers in a resin.

9. A plated tubular lattice structure including a plurality of axial posts aligned in parallel and a plurality of pyramidal structures extending laterally from the axial posts and connecting the axial posts at nodes, the plated tubular lattice structure being fabricated by a method comprising:
forming a backbone structure in a shape of the plated tubular lattice structure;
activating and metallizing an outer surface of the backbone structure;
depositing a metal plating layer on the activated/metallized outer surface of the backbone structure to provide the plated tubular lattice structure; and
coating an outer surface of the plated tubular lattice structure with a polymer.

10. The plated tubular lattice structure of claim 9 , wherein the metal plating layer includes a platable metallic material selected from the group consisting of nickel, cobalt, copper, iron, gold, silver, palladium, rhodium, chromium, zinc, tin, cadmium, an alloy of any of the foregoing comprising at least 50 wt. % of the alloy, and combinations thereof.

11. The plated tubular lattice structure of claim 10 , wherein the metal plating layer has an average thickness in a range of 0.05 mm to 3.8 mm.

12. The plated tubular lattice structure of claim 9 , wherein forming the backbone structure in the shape of the plated tubular lattice structure comprises molding the backbone structure from a polymeric material.

13. The plated tubular lattice structure of claim 12 , wherein molding the backbone structure from the polymeric material is carried out by injection molding.

14. The plated tubular lattice structure of claim 9 , wherein forming the backbone structure in the shape of the plated tubular lattice structure comprises forming the backbone structure from a composite of continuous fibers in a resin.

15. The plated tubular lattice structure of claim 14 , wherein forming the backbone structure from the composite of continuous fibers in a resin comprises winding tows of the continuous fibers in the resin over a mandrel followed by removing the mandrel.

16. The plated tubular lattice structure of claim 14 , further comprising molding a polymer substrate around the backbone structure.

17. A method for fabricating a plated tubular lattice structure, comprising:
forming a backbone structure having a plurality of axial posts aligned in parallel and a plurality of pyramidal structures extending laterally from the axial posts and connecting the axial posts at nodes;
activating and metallizing an outer surface of the backbone structure; and
depositing a metal plating layer on the activated/metallized outer surface of the backbone structure to provide the plated tubular lattice structure; and
coating an outer surface of the plated tubular lattice structure with a polymer.

18. The method of claim 17 , wherein forming the backbone structure comprises molding the backbone structure from a polymeric material.

19. The method of claim 17 , wherein forming the backbone structure comprises forming the backbone structure from a composite of continuous fibers in a resin.

Assignees

• United Technologies Corp

Inventors

• Cook Iii Grant O
• Roach James T

Classifications

• B29C49/071

  Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties · CPC title

• B29C2949/0715

  the preform having one end closed · CPC title

• E04B1/19

  Three-dimensional [3D] framework structures · CPC title

• B32B2307/558

  Impact strength, toughness · CPC title

• B29C45/14

  incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles {(B29C45/1671 takes precedence)} · CPC title