Hybrid torque tube

Patent metadata

Field	Value
Publication number	US-10927908-B2
Application number	US-202016865635-A
Country	US
Kind code	B2
Filing date	May 4, 2020
Priority date	Feb 2, 2018
Publication date	Feb 23, 2021
Grant date	Feb 23, 2021

Abstract

A hybrid torque tube for a brake assembly may comprise a tube portion having a centerline axis, and a conical back-leg portion extending from the tube portion. A stator spline may be formed on a radially outward surface of the tube portion. A foot may be formed on a radially inward surface of the tube portion. The tube portion is formed using a first manufacturing process and at least one of the conical back-leg, stator spline, or foot is formed using additive manufacturing.

First claim

What is claimed is:

1. A hybrid torque tube for a brake assembly, the hybrid torque tube comprising:
a tube portion having a centerline axis, the tube portion comprising a first metal alloy;
a conical back-leg extending from the tube portion in a radially outward angled orientation relative to the centerline axis;
a stator spline formed on a radially outward surface of the tube portion; and
a foot formed on a radially inward surface of the tube portion, wherein at least one of the conical back-leg, the stator spline, or the foot comprises a second metal alloy different from the first metal alloy.

2. The hybrid torque tube of claim 1 , wherein a portion of the stator spline is hollow.

3. The hybrid torque tube of claim 1 , wherein a portion of the stator spline comprises a lattice structure.

4. The hybrid torque tube of claim 1 , wherein the first metal alloy comprises a first non-ferrous material, and wherein the second metal alloy comprises a second non-ferrous material different from the first non-ferrous material, the second non-ferrous material having a greater resistance to creep as compared to the first non-ferrous material.

5. The hybrid torque tube of claim 4 , wherein the first metal alloy comprises, by weight, 6% aluminum, 4% vanadium, a maximum of 0.2% oxygen, a maximum of 0.25% iron, and at least 89% titanium, and wherein the second metal alloy comprises, by weight, 6% aluminum, 2% tin, 4% zirconium, 2% molybdenum, and at least 85% titanium.

6. The hybrid torque tube of claim 1 , wherein the first metal alloy comprises a first ferrous material, and wherein the second metal alloy comprises a second ferrous material different from the first ferrous material.

7. The hybrid torque tube of claim 1 , wherein an end of the stator spline proximate the conical back-leg is tapered.

Assignees

• Goodrich Corp

Inventors

• Steele Leslie
• Filburn Thomas P
• Klecka Michael A

Classifications

• B33Y70/00

  Materials specially adapted for additive manufacturing · CPC title

• F16D55/36 Primary

  Brakes with a plurality of rotating discs all lying side by side · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title

• F16D65/02

  Braking members; Mounting thereof (friction linings or attachment thereof F16D69/00) · CPC title

• F16D2065/1388

  to shaft or axle · CPC title