Systems and methods for manufacturing wear pads

Patent metadata

Field	Value
Publication number	US-2023093175-A1
Application number	US-202117483394-A
Country	US
Kind code	A1
Filing date	Sep 23, 2021
Priority date	Sep 23, 2021
Publication date	Mar 23, 2023
Grant date	—

Abstract

A manufacturing process may comprise: stacking a plurality of friction discs together, each friction disc comprising a lug defining a surface; and depositing a composition to bond to the surface of a first friction disc in the plurality of friction discs to form a wear pad defining a wear surface.

First claim

We claim:

1 . A manufacturing process comprising:
stacking a plurality of friction discs together, each friction disc comprising a lug defining a surface; and depositing a composition to bond to the surface of a first friction disc in the plurality of friction discs to form a wear pad defining a wear surface.

2 . The manufacturing process of claim 1 , wherein depositing the composition comprises depositing the composition via one of directed energy deposition or wire arc additive manufacturing.

3 . The manufacturing process of claim 1 , wherein depositing the composition includes generating a functionally graded structure on the surface.

4 . The manufacturing process of claim 1 , further comprising texturing the surface prior to depositing the composition.

5 . The manufacturing process of claim 4 , wherein the surface is textured via a laser beam emitted from a laser source.

6 . The manufacturing process of claim 5 , wherein the depositing the composition includes forming a molten deposit pool via directing the laser source towards the surface and depositing a powder on the surface.

7 . The manufacturing process of claim 1 , further comprising depositing the composition to bond to a second surface of a second friction disc, the second friction disc disposed adjacent to the first friction disc in the plurality of friction discs.

8 . The manufacturing process of claim 1 , wherein a first friction surface of the first friction disc abuts a second friction surface of a second friction disc in the plurality of friction discs.

9 . A manufacturing process, comprising:
texturing a surface of a lug of a friction disc via a laser source; and depositing a composition on the surface to form a wear pad defining a wear surface.

10 . The manufacturing process of claim 9 , wherein depositing the composition includes forming a molten deposit pool via directing the laser source towards the surface and depositing a powder on the surface.

11 . The manufacturing process of claim 10 , wherein the powder forms a molten deposit pool in response to being contacted by a laser beam of the laser source, the molten deposit pool configured to flow into a textured surface formed via texturing the surface.

12 . The manufacturing process of claim 11 , wherein the molten deposit pool bonds to the textured surface.

13 . The manufacturing process of claim 9 , further comprising stacking a plurality of friction discs together prior to texturing the surface, the plurality of friction discs including the friction disc.

14 . The manufacturing process of claim 13 , further comprising depositing the composition on a plurality of lugs for each friction disc in the plurality of friction discs.

15 . The manufacturing process of claim 14 , wherein the plurality of lugs are spaced apart along a radial surface of the friction disc.

16 . The manufacturing process of claim 9 , wherein the wear surface is configured to interface with one of a torque bar or a torque plate in a brake assembly.

17 . The manufacturing process of claim 1 , wherein the friction disc comprises a fiber reinforced carbon or ceramic matrix composite, and wherein the composition comprises a metal alloy.

18 . A friction disc, comprising:
an annular structure and a plurality of lugs, each lug in the plurality of lugs extending radially from the annular structure, the plurality of lugs being spaced apart; and a plurality of wear pads, each wear pad defining a wear surface configured to interface with one of a spline, a torque bar, or a torque plate, each wear pad in the plurality of wear pads being bonded to a surface of a lug in the plurality of lugs.

19 . The friction disc of claim 18 , wherein the annular structure comprises a fiber reinforced carbon or ceramic matrix composite, and wherein each wear pad in the plurality of wear pads comprises a metal alloy.

20 . The friction disc of claim 18 , wherein a first wear pad in the plurality of wear pads is spaced apart from a second wear pad in the plurality of wear pads, the first wear pad and the second wear pad defining a channel therebetween configured to receive the spline, the torque bar, or the torque plate.

Assignees

• Goodrich Corp

Inventors

• Borkowski Luke
• El-Wardany Tahany Ibrahim
• Steele Leslie

Classifications

• Y02P10/25

  Process efficiency · CPC title

• F16D2200/006

  containing fibres or particles · CPC title

• F16D2250/0092

  Tools or machines for producing linings · CPC title

• F16D2065/1392

  Connection elements · CPC title

• F16D2250/0046

  Coating · CPC title