Systems and methods for high strength titanium wire additive manufacturing

Patent metadata

Field	Value
Publication number	US-11192186-B2
Application number	US-201816102430-A
Country	US
Kind code	B2
Filing date	Aug 13, 2018
Priority date	Aug 13, 2018
Publication date	Dec 7, 2021
Grant date	Dec 7, 2021

Abstract

A method of titanium wire additive manufacturing is disclosed. The method may comprise mixing a plurality of powdered metals comprising titanium, iron, vanadium, and aluminum to produce a powder blend, sintering the powder blend to form a billet, performing a wire forming operation to produce a worked wire, heat treating the worked wire to produce a heat treaded wire, loading the heat treated wire into a wirefeed additive manufacturing machine, and producing a metallic component from the heat treated wire. The titanium may be a titanium hydride powder.

First claim

What is claimed is:

1. A method of titanium wire additive manufacturing, comprising:
mixing a plurality of powdered metals comprising titanium, iron, vanadium, and aluminum to produce a powder blend, wherein the powder blend comprises between 4% and 6% by weight iron, between 0.5% to 2% by weight aluminum, and between 6% to 9% by weight vanadium;
sintering the powder blend to form a billet;
performing a wire forming operation on the billet to produce a worked wire, wherein the wire forming operation includes applying an anti-oxidation coating;
heat treating the worked wire to produce a heat treated wire;
loading the heat treated wire into a wirefeed additive manufacturing machine configured to deposit the heat treated wire; and
producing a metallic component from the heat treated wire, the metal component comprising between 4% and 6% by weight iron, between 0.80% to 1.50% by weight aluminum, and between 7.5% to 8.5% by weight vanadium.

2. The method of claim 1 , wherein the titanium is a titanium hydride powder.

3. The method of claim 2 , wherein the metallic component is at least one of a piston, a bogie beam, or a torque link.

4. The method of claim 3 , wherein the sintering is performed between 900° F. and 1600° F. and under a vacuum.

5. The method of claim 3 , wherein the wire forming operation further includes at least one of rotary swaging, rolling, or extrusion.

6. The method of claim 5 , wherein the wire forming operation further includes at least one of a metal pickling treatment or an intermediate heat treatment.

7. The method of claim 6 , wherein at least one of the rotary swaging, rolling, extrusion, metal pickling treatment, or intermediate heat treatment are performed in at least one of a vacuum or under an inert gas.

8. The method of claim 6 , wherein at least one of the heat treatment or the intermediate heat treatment includes at least one of annealing, solutionizing, or aging.

9. The method of claim 1 , wherein the heat treated wire comprises between 0.1% and 1.0% by weight oxygen and between 0.001% and 0.015% by weight hydrogen.

10. The method of claim 9 , wherein the heat treated wire has undergone at least one of a beta phase transformation, a beta anneal, or an alpha beta anneal during at least one of the heat treatment or the intermediate heat treatment.

11. The method of claim 10 , wherein the diameter of the heat treated wire is between 0.0104 in and 0.156 in.

12. A method of forming a wire for titanium wire additive manufacturing, comprising:
mixing a plurality of powdered metals comprising titanium, iron, vanadium, and aluminum to produce a powder blend, wherein the powder blend comprises between 4% and 6% by weight iron, between 0.5% to 2% by weight aluminum, and between 6% to 9% by weight vanadium;
sintering the powder blend to form a billet;
annealing the billet after sintering the powder blend;
performing a wire forming operation on the billet after annealing the billet to produce a worked wire, wherein the wire forming operation includes applying an anti-oxidation coating; and
heat treating the worked wire to produce a heat treated wire.

13. The method of claim 12 , wherein the titanium is a titanium hydride powder.

14. The method of claim 13 , wherein the heat treated wire comprises between 4% and 6% by weight iron, between 0.80% to 1.50% by weight aluminum, and between 7.5% to 8.5% by weight vanadium.

15. The method of claim 14 , wherein the sintering is performed between 900° F. and 1600° F. and under a vacuum.

16. The method of claim 12 , wherein performing the wire forming operation on the billet comprises:
performing a plurality of wire forming operations on the billet to achieve a desired wire diameter; and
reapplying the anti-oxidation coating to the billet between successive wire forming operations of the plurality of wire forming operations.

17. The method of claim 12 , wherein performing the wire forming operation on the billet comprises:
performing a plurality of wire forming operations on the billet to achieve a desired wire diameter;
subjecting the wire to a first pickling treatment after a first wire forming operation of the plurality of wire forming operations and prior to a second wire forming operation of the plurality of wire forming operations; and
subjecting the wire to a second pickling treatment after the second wire forming operation of the plurality of wire forming operations and prior to a third wire forming operation of the plurality of wire forming operations.

Assignees

• Goodrich Corp

Inventors

• Panza-Giosa Roque
• Haynes Noel C

Classifications

• B22F5/12 Primary

  of wires {(of tubes B22F5/10)} · CPC title

• B22F10/25

  Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS] · CPC title

• B22F10/18

  by mixing binder with metal in filament form, e.g. fused filament fabrication [FFF] · CPC title

• B22F1/12

  Metallic powder containing non-metallic particles (containing lubricating or binding agents or organic material B22F1/10) · CPC title

• B22F1/09

  Mixtures of metallic powders · CPC title