IP Library Granted Patent US 9,925,680
Granted Patent B2
US 9,925,680 · App. 13/914,737 · Granted Mar 27, 2018

System and method of post-cure processing of composite core

Inventors: Phillip A. Kendrick (Fort Worth, TX); Levi H. Armstrong (Saginaw, TX)
Assignee: Bell Helicopter Textron Inc.
B26D1/157B26D7/01B29C53/60B29C69/001B29C70/545B29D99/0089B26D1/08B26D1/10B26D3/167B29C66/543B29C70/30B32B3/12B32B37/146Y10T83/04Y10T83/0405Y10T83/0524Y10T156/1026Y10T156/1059Y10T156/1066Y10T156/1079Y10T156/13Y10T156/1357
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 9,925,680
App. No.
13/914,737
Granted
Mar 27, 2018
Kind
B2
Abstract

A method of cutting a wafer of composite core from a bulk composite core includes stabilizing the bulk composite core with a fixture, the bulk composite core having a plurality of tube members. The method also includes cutting through each of the tube members to create the wafer while the bulk composite core is stabilized by the fixture.

Claims (13)

1. A method of cutting a wafer of composite core from a bulk composite core, the method comprising the steps of:

providing a bulk composite core having a substantially hexagonal outer geometry and a plurality of tube members, each of the tube members comprises a plurality of reinforcement fibers disposed in a polymeric matrix;

stabilizing the bulk composite core with a fixture having a hexagonal inner surface that lies adjacent to the hexagonal outer geometry of the bulk composite core;

positioning the bulk composite core within the fixture so as to partially expose a desired amount of the bulk composite core for cutting; and

cutting through each of the tube members in the bulk composite core to create a wafer having a substantially hexagonal outer geometry.

2. The method according to claim 1 , wherein each tube member has a hexagonal shaped geometry.

3. The method according to claim 1 , wherein the step of cutting through each of the tube members in the bulk composite core includes cutting through an unsupported portion of the bulk composite core adjacently to a portion of the bulk composite core supported by the fixture.

4. The method according to claim 1 , wherein the step of cutting through each of the tube members in the bulk composite core comprises cutting along a plane that is parallel to an exposed surface network of the bulk composite core.

5. The method according to claim 1 , wherein the positioning and cutting steps are repeated to create additional wafers having a substantial hexagonal outer geometry.

6. The method according to claim 1 , wherein the reinforcement fibers comprise at least one or more of the following: carbon, graphite, glass, an aromatic polyamide material, and a variant of an aromatic polyamide material.

7. The method according to claim 1 , wherein the polymeric matrix comprises a resin.

8. The method according to claim 7 , wherein the resin is a thermoplastic resin or a thermosetting resin.

9. The method according to claim 1 , wherein the plurality of reinforcement fibers are oriented in one or more directions.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 11, 2013
From: ARMSTRONG, LEVI H.; KENDRICK, PHILLIP A.
To: BELL HELICOPTER TEXTRON INC.
Reel/Frame 030585/0096 →
Continuity (1)
Related Publication 20140360323A1 · Dec 11, 2014