Multi-material wires for additive manufacturing of titanium alloys

Patent metadata

Field	Value
Publication number	US-2017326868-A1
Application number	US-201715595493-A
Country	US
Kind code	A1
Filing date	May 15, 2017
Priority date	May 16, 2016
Publication date	Nov 16, 2017
Grant date	—

Abstract

Wires for use in electron beam or plasma arc additive manufacturing of titanium alloys are disclosed. The wires have a first portion comprising a first material, and a second portion comprising a second material. The combination of the first and second materials results in a titanium alloy product of the appropriate composition.

First claim

What is claimed is:

1 . A wire for use in electron beam or plasma arc additive manufacturing, the wire comprising:
an outer tube portion comprising a first material, the first material at least comprising aluminum; and a volume of particles contained within the outer tube portion, the volume of particles being a second material, wherein the second material is different than the first material and at least comprises titanium; wherein the composition of the first material and second material are sufficient to produce a titanium alloy product when the wire is used in additive manufacturing.

2 . The wire of claim 1 , wherein the second material comprises an aluminum-containing titanium alloy.

3 . The wire of claim 2 , wherein the second material is a titanium alloy selected from the group consisting of Ti-6Al-4V, Ti-6Al-6V-2Sn, Ti-7Al-4Mo, Ti-6Al-2Sn-4Zr-6Mo, Ti-5Al-2Sn-2Zr-4Mo-4Cr, Ti-6Al-2Sn-2Zr-2Mo-2Cr, Ti-3Al-2.5V, Ti-10V-2Fe-3Al, Ti-13V-11Cr-3Al, Ti-8Mo-8V-2Fe-3Al, Ti-3Al-8V-6Cr-4Mo-4Zr, Ti-5Al-2.5Sn, Ti-8Al-1Mo-1V, Ti-6Al-2Sn-4Zr-2Mo, Ti-6Al-2Nb-1Ta-0.8Mo, Ti-2.25Al-11Sn-5Zr-1Mo, and Ti-5Al-5Sn-2Zr-2Mo.

4 . The wire of claim 1 , wherein the first material is a 1xxx aluminum alloy.

5 . The wire of claim 1 , wherein the first material comprises a sufficient amount of the aluminum and any secondary elements to achieve the target composition of the titanium alloy product.

6 . The wire of claim 5 , wherein the secondary elements are selected from the group of vanadium (V), tin (Sn), molybdenum (Mo), zirconium (Zr), niobium (Nb), chromium (Cr), iron (Fe) and combinations thereof.

7 . The wire of claim 1 , wherein the first material is essentially free of titanium.

8 . The wire of claim 1 , wherein the first material is a lxxx aluminum alloy and wherein the second material is Ti-6Al-4V.

9 . A wire for use in electron beam or plasma arc additive manufacturing, comprising:
(a) a first elongate outer tube;
(i) wherein the first elongate outer tube comprises a first material or a second material
(b) a second elongate inner tube disposed within the first elongate outer tube;
(i) wherein the second elongate inner tube comprise the other of the first material and the second material relative to the first elongate outer tube;
wherein the first material at least comprises aluminum; wherein the second material is different than the first material and at least comprises titanium; wherein the composition of the first material and second material are sufficient to produce a titanium alloy product when the wire is used in additive manufacturing.

10 . The wire of claim 9 , wherein the second material comprises an aluminum-containing titanium alloy.

11 . The wire of claim 9 , wherein the first material is a 1xxx aluminum alloy.

12 . The wire of claim 9 , wherein the first material is essentially free of titanium.

13 . The wire of claim 9 , wherein the first material is a 1xxx aluminum alloy and wherein the second material is Ti-6Al-4V.

14 . A wire for use in electron beam or plasma arc additive manufacturing, comprising:
(a) a first fiber;
(i) wherein the first fiber comprises a first material, the first material at least comprising aluminum;
(b) a second fiber intertwined with the first fiber;
(i) wherein the second fiber comprises a second material;
(ii) wherein the second material is different than the first material and at least comprises titanium;
wherein the composition of the first material and second material are sufficient to produce a titanium alloy product when the wire is used in additive manufacturing.

15 . The wire of claim 14 , wherein the second material comprises an aluminum-containing titanium alloy.

16 . The wire of claim 14 , wherein the first material is a 1xxx aluminum alloy.

17 . The wire of claim 14 , wherein the first material is essentially free of titanium.

18 . The wire of claim 14 , wherein the first material is a 1xxx aluminum alloy and wherein the second material is Ti-6Al-4V.

Assignees

• Arconic Inc

Inventors

• Heard David W
• Satoh Gen
• Sample Vivek M
• Kulovits Andreas
• Kilmer Raymond J

Classifications

• B23K15/0093

  characterised by the properties of the materials to be welded · CPC title

• C22C21/003

  containing at least 2.6% of one or more of the elements: tin, lead, antimony, bismuth, cadmium, and titanium · CPC title

• H01J37/30

  Electron-beam or ion-beam tubes for localised treatment of objects · CPC title

• B23K35/325

  Ti as the principal constituent · CPC title

• B23K35/0266

  flux-cored · CPC title