Wire manufactured by additive manufacturing methods

Patent metadata

Field	Value
Publication number	US-10688596-B2
Application number	US-201615373230-A
Country	US
Kind code	B2
Filing date	Dec 8, 2016
Priority date	Dec 18, 2015
Publication date	Jun 23, 2020
Grant date	Jun 23, 2020

Abstract

Systems and methods for the manufacture of a solid wire using additive manufacturing techniques are disclosed. In one embodiment, a fine powdery material is sintered or melted or soldered or metallurgically bonded onto a metal strip substrate in a compacted solid form or a near-net shape (e.g., a near-net solid wire shape) before being turned into a final product through forming or drawing dies.

First claim

What are claimed:

1. A system for manufacturing a welding-type filler metal wire, comprising:
a transporter system configured to move a work-in-progress filler metal build under a heat source;
a material source system that provides a source material that is added to a substrate or a previously bonded material by the heat source over one or more passes, wherein one or both of the transporter system and the material system build a near-net shaped solid wire; and
a plate assembly or a die assembly that draws down to ensure a diameter or a cross-sectional area of the near-net shape solid wire into a finished solid wire,
wherein the heat source is configured to fuse the source material as a layer onto the substrate with a spot size commensurate with the width of the layer.

2. The system according to claim 1 , wherein the plate assembly or the die assembly is configured to reduce the diameter of the near-net shape solid wire by less than ten percent.

3. The system according to claim 1 , wherein the substrate or the previously bonded material includes a metal strip.

4. The system according to claim 1 , wherein the substrate or the previously bonded material includes a powder, a flux, a wire, or a rod.

5. The system according to claim 1 , wherein the transporter system includes one or more pulleys that move the substrate or the previously bonded material.

6. The system according to claim 1 , wherein the transporter system includes one or more motorized drive rolls.

7. The system according to claim 1 , wherein the heat source includes one or more of the following: a laser source, an induction heating source, an electron beam source, and an arc.

8. The system according to claim 1 , wherein the finished solid wire is consumed in an electric arc or high energy density beam for one or more of welding, brazing, cladding, cutting, or gouging.

9. The system according to claim 1 , wherein the transporter system is configured to continuously or periodically move the substrate or the previously bonded material.

10. The system according to claim 1 , wherein the material source system includes a powder bed, wherein the transporter system is configured to move the substrate or the previously bonded material multiple times through the powder bed, and wherein each time through the powder bed causes a deposition of a layer of material in powder form on the substrate or the previously bonded material.

11. The system according to claim 1 , wherein the heat source is configured to sinter or melt the deposited layer of metal and a non-metallic material onto the substrate or the previously bonded material.

12. The system according to claim 1 , wherein the material source system includes a wire feeding system configured to provide a feeder wire to the substrate or the previously bonded material such that the feeder wire melts and solidifies with the substrate or the previously bonded material.

13. The system according to claim 1 , wherein the near-net shaped wire has a porous internal structure and an external surface.

14. The system according to claim 1 , wherein the near-net shaped wire has a hermetically sealed exterior.

15. The system according to claim 1 , wherein the near-net shaped wire has different compositions or constitution that repeat in a length-wise direction of the near-net shaped wire.

16. The system according to claim 1 , wherein the near-net shaped wire has different physical properties that repeat in a length-wise direction of the near-net shaped wire.

17. The system according to claim 1 , wherein the near-net shaped wire has different physical structures that repeat in a length-wise direction of the near-net shaped wire.

18. The system according to claim 1 , wherein the substrate or the previously bonded material is initially a C-shaped, U-shaped, or flat metal strip.

19. The system according to claim 1 , wherein the source material includes metal or metal oxide powders including or more of the following: iron, niobium, vanadium, zirconium, titanium, molybdenum, boron, rare-earth metals, aluminum, nickel, magnesium, manganese, and chromium.

20. The system according to claim 1 , wherein the source material includes a non-metallic material that includes one or more of the following: an arc stabilizer and a shielding agent.

21. The system according to claim 20 , wherein the arc stabilizer includes one or both of potassium and sodium, or wherein the shielding agent includes one or both of lime stone and ferrosilicon.

22. The system according to claim 1 , wherein the welding-type filler metal wire is configured to be used for welding, joining, brazing, soldering, or cladding with an arc, a laser, an electron beam, or friction as an energy source.

23. The system according to claim 1 ,
wherein the material source system includes a laser metal deposition (LMD) head or an electron beam or an electric arc torch, and is configured to deposit the source material and to heat the deposited material to additively manufacture a near-net shaped wire in an axial direction of the near-net shaped wire, and
wherein the transportation system is configured to axially move the wire away from the LMD head or the electron beam or the electric arc torch, wherein the LMD head or the electron beam or the electric arc torch and the transportation system are matched in speed.

24. The system according to claim 23 , wherein the drawing plate assembly or the drawing die assembly is configured to reduce the diameter of the near-net shape solid wire by less than ten percent by.

25. The system according to claim 23 , wherein the LMD head coaxially provides a laser beam, the source material, and a shielding gas.

26. The system according to claim 23 , wherein the LMD head is configured to build up the near-net shaped wire axially.

27. The system according to claim 1 ,
wherein the material source system includes a laser metal deposition (LMD) head or an electron beam or an electric arc torch configured to heat the substrate or the previously bonded material and to deposit the source material onto the heated metal substrate or the heated previously bonded material to additively manufacture a near-net shaped wire, and
wherein the transportation system is configured to move the substrate or the previously bonded material under the LMD head or the electric arc torch or the electron beam.

28. The system according to claim 1 , wherein the heat source is configured to modify a surface property or a geometry of the work-in-progress filler metal build.

29. The system according to claim 28 , wherein the heat source is configured to surface mark or texture the work-in-progress filler metal build.

30. The system according to claim 28 , wherein the heat source is configured to micro hole drill or micromachine to create cavities in the work-in-progress filler metal build.

31. The system according to claim 28 , wherein the heat source is configured to introduce residual stress in particular patterns in the work-in-progress filler metal build.

32. The system according to claim 1 , wherein the material source system is configured to provide a metal oxide, a carbide, a silica, a flux, or a high temperature nanoparticle to the substrate, and wherein the heat source is configured to bond the metal oxide, a carbide, a silica, a flux, or a high tem

Assignees

• Illinois Tool Works

Inventors

• Hsu Christopher

Classifications

• B22F5/12 Primary

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

• B22F12/50

  Means for feeding of material, e.g. heads · CPC title

• B22F12/13

  to preheat the material · CPC title

• B22F10/66

  by mechanical means · CPC title

• B22F10/50

  Treatment of workpieces or articles during build-up, e.g. treatments applied to fused layers during build-up · CPC title