Structural rework of cellular core panels

Patent metadata

Field	Value
Publication number	US-11207877-B2
Application number	US-202016779922-A
Country	US
Kind code	B2
Filing date	Feb 3, 2020
Priority date	Nov 29, 2017
Publication date	Dec 28, 2021
Grant date	Dec 28, 2021

Abstract

Methods for reworking structures and reworked cellular core panels, reworked structures comprising the reworked cellular core panels, and guides and cutting apparatuses for reworking cellular acoustic panels and reworking cellular acoustic and non-acoustic panels are disclosed.

First claim

What is claimed is:

1. A guide for a cutting instrument, the guide comprising:
a base;
at least one leg in communication with the base, said at least one leg dimensioned to mate with a cellular core cell, said cellular core cell comprising a cellular core geometry and said at least one leg comprising the cellular core geometry,
a guide slot configured to extend longitudinally through the base, said guide slot defined by the at least one leg and the base, said guide slot positioned proximate to a cell wall juncture of adjoining cellular core cells, said guide slot configured to receive a cutting instrument having a leading blade edge; and
wherein when the cutting instrument is received by the guide slot, the cutting instrument is configured to sever at least one cell wall of the cellular core cell completely from an adjoining cell wall at the cell wall juncture to form at least one of: a cellular section rework plug or a cut-out cellular core section.

2. The guide of claim 1 , wherein
the at least one leg is dimensioned to extend into the cellular core cell, said cellular core cell comprising a plurality of cell walls; and
wherein said guide slot is defined by the at least one leg and the base.

3. The guide of claim 1 , wherein the cutting instrument comprises a leading blade edge.

4. The guide of claim 3 , wherein the guide is configured to direct the cutting instrument proximate to the cell wall juncture.

5. The guide of claim 4 , wherein said cell wall juncture comprises a plurality of cell walls of adjacent cellular core cells.

6. The guide of claim 1 , wherein the guide further comprises a handle, said handle extending from the base, said handle configured to allow a user to selectively insert said guide at least partially into the cellular core cell.

7. The guide of claim 1 , wherein the at least one leg is dimensioned to mate with the cellular core cell when the at least one leg is inserted into the cellular core cell.

8. The guide of claim 1 , wherein said guide slot is further configured to guide the leading blade edge to engage at least one cell wall.

9. The guide of claim 4 , wherein said guide slot is further configured to guide the leading blade edge to engage the cell wall adjoining the pair of cellular core cells.

10. The guide of claim 1 , further comprising a pair of legs in communication with the base, wherein each of the pair of legs is dimensioned, respectively, to extend into each of an adjacent pair of cellular core cells, wherein the guide slot is defined by the pair of legs and the base to extend longitudinally within the guide and substantially between the pair of legs.

11. The guide of claim 1 , wherein the cellular core geometry comprises a hexagonally configured cellular core cell.

12. An apparatus for reworking a panel, said apparatus comprising:
a cutting instrument; and
a guide, said guide comprising:
a base;
at least one leg in communication with the base, said at least one leg dimensioned to mate with a cellular core cell in a panel, said cellular core cell comprising a plurality of cell walls, said cellular core cell further comprising a cellular core geometry, said cell walls comprising a cell wall juncture, and said at least one leg comprising the cellular core geometry,
a guide slot extending longitudinally through the base, said guide slot defined by the leg and the base, said guide slot positioned proximate to the cell wall juncture of adjoining cellular core cells, and said guide slot being configured to selectively receive said cutting instrument; and
wherein when the cutting instrument is positioned in the guide slot, the cutting instrument is configured to sever at least one cell wall of the cellular core cell completely from an adjoining cell wall at the cell wall juncture to form at least one of: a cellular section rework plug or a cut-out cellular core section.

13. The apparatus of claim 12 , wherein the cellular core geometry comprises a hexagonally configured cellular core cell.

14. The apparatus of claim 12 , wherein said guide slot is dimensioned to receive the cutting instrument, said cutting instrument comprising a leading blade edge.

15. The apparatus of claim 12 , wherein the guide further comprises a handle extending from the base, said handle configured to allow a user to selectively insert said leg into the cellular core cell.

16. The apparatus of claim 12 , wherein the cutting instrument comprises a blade, said blade further configured to move within a length of the guide slot, said blade comprising a leading cutting edge.

17. The apparatus of claim 16 , wherein said guide slot is further configured to guide the leading blade edge to engage the cell wall.

18. The apparatus of claim 12 , wherein the base includes a handle extending longitudinally from the base, wherein the handle is configured to allow a user to selectively mate said at least one leg with said cellular core cell.

19. The apparatus of claim 12 , wherein the guide is configured to direct the cutting instrument proximate to the cell wall juncture.

20. The apparatus of claim 12 , wherein said cell wall juncture comprises a plurality of cell walls of adjacent cellular core cells.

Assignees

• Boeing Co

Inventors

• Evens Michael W
• Pilarca Genesis
• Desai Nihar A
• Walter David M
• Adams Ebonni J
• Titus Nicole
• Vimala Shekar
• Barrett Timothy S
• Spalding John
• Perron Dan

Classifications

• B26B3/04 Primary

  for performing several incisions simultaneously; Multiple-blade knives · CPC title

• F05D2260/963

  by Helmholtz resonators · CPC title

• B29C73/06

  using plugs sealing in the hole · CPC title

• F05D2300/603

  Composites; e.g. fibre-reinforced · CPC title

• B29C73/26

  for mechanical pretreatment · CPC title