Method of manufacturing a piece comprising several parts connected together

Patent metadata

Field	Value
Publication number	US-10086482-B2
Application number	US-201515501203-A
Country	US
Kind code	B2
Filing date	Jul 24, 2015
Priority date	Aug 4, 2014
Publication date	Oct 2, 2018
Grant date	Oct 2, 2018

Abstract

Disclosed is a method of manufacturing a final piece including several materials, the final piece being produced at least according to the steps of: inserting an elastomer ( 5 ) in at least one insertion cavity ( 6 ) of an initial piece ( 2 ) so that the elastomer ( 5 ) is in contact and fixed with the initial piece ( 2 ); then cutting the initial piece ( 2 ) in at least two distinct parts ( 3, 4 ), so that the at least two distinct parts ( 3, 4 ) are fixed together but not in contact with each other, the at least two distinct parts ( 3, 4 ) being connected together by the elastomer ( 5 ). This may be applied to manufacturing a final piece including several parts, of various natures, connected together.

First claim

The invention claimed is:

1. A method of manufacturing a final piece including several materials, the method comprising:
inserting an elastomer in at least one insertion cavity of an initial piece so that the elastomer is in contact and fixed with the initial piece; and
after inserting the elastomer in the at least one insertion cavity, cutting the initial piece in at least two distinct parts so that the at least two distinct parts are fixed together but are not in contact with each other, the at least two distinct parts being connected to each other by the elastomer,
wherein the final piece includes at least one clearance cavity arranged to, once the initial piece is cut, allow a movement of the two distinct parts relative to each other by deformation of the elastomer.

2. The method of manufacturing according to claim 1 , wherein the at least one clearance cavity is machined into the initial piece after inserting the elastomer.

3. The method of manufacturing according to claim 1 , wherein layers of the elastomer are inserted in the at least one clearance cavity, each layer being in contact with one single part of the two distinct parts and being located between the two distinct parts.

4. The method of manufacturing according to claim 3 , wherein the elastomer layers are obtained by inserting the elastomer in the layer cavities.

5. The method of manufacturing according to claim 4 , wherein each layer cavity is connected to an insertion cavity by a channel allowing a passage of the elastomer between the two cavities when inserting the elastomer in one of the two cavities.

6. The method of manufacturing according to claim 1 , further comprising providing a cut at interfaces between the initial piece and the elastomer.

7. A method of manufacturing a final piece including several materials, the method comprising:
inserting an elastomer in at least one insertion cavity of an initial piece so that the elastomer is in contact and fixed with the initial piece;
providing a cut by cutting at interfaces between the initial piece and the elastomer; and
after inserting the elastomer in the at least one insertion cavity and cutting at the interfaces, cutting the initial piece in at least two distinct parts so that the at least two distinct parts are fixed together but are not in contact with each other, the at least two distinct parts being connected to each other by the elastomer.

8. The method of manufacturing according to claim 1 , wherein cutting is performed by wire electroerosion.

9. The method of manufacturing according to claim 1 , wherein the initial piece is formed by a conductive material.

10. The method of manufacturing according to claim 1 , wherein the elastomer comprises natural rubber.

11. The method of manufacturing according to claim 1 , wherein the elastomer is molded into the initial piece.

12. The method of manufacturing according to claim 1 , wherein the elastomer is inserted into at least four distinct insertion cavities.

13. The method of manufacturing according to claim 5 , wherein all surfaces of the insertion cavities and of the layer cavities are treated in order to improve the link between the elastomer and the distinct part or parts.

14. The method of manufacturing according to claim 1 , wherein the at least one insertion cavity is a hole machined across the entire initial piece.

15. The method of manufacturing according to claim 7 , wherein the final piece includes at least one clearance cavity arranged to, once the initial piece is cut, allow a movement of the two distinct parts relative to each other by deformation of the elastomer.

16. The method of manufacturing according to claim 15 , wherein the at least one clearance cavity is machined into the initial piece after inserting the elastomer.

17. The method of manufacturing according to claim 15 , wherein layers of the elastomer are inserted in the at least one clearance cavity, each layer being in contact with one single part of the two distinct parts and being located between the two distinct parts.

18. The method of manufacturing according to claim 17 , wherein the elastomer layers are obtained by inserting the elastomer in the layer cavities.

19. The method of manufacturing according to claim 18 , wherein each layer cavity is connected to an insertion cavity by a channel allowing a passage of the elastomer between the two cavities when inserting the elastomer in one of the two cavities.

20. The method of manufacturing according to claim 15 , wherein cutting is performed by wire electroerosion.

Assignees

• Airbus Defence & Space Sas
• Etancheite Et Frottement J Massot
• Etancheite Et Frottement J Massot

Inventors

• Aubert Guy
• Deyber Stéphane

Classifications

• B29L2031/721

  Vibration dampening equipment, e.g. shock absorbers (bumpers B29L2031/3044, springs B29L2031/774) · CPC title

• F16F2230/00

  Purpose; Design features · CPC title

• F16F3/0873

  of the same material or the material not being specified · CPC title

• F16F2226/04

  Assembly or fixing methods; methods to form or fashion parts · CPC title

• B29C45/0055

  Shaping · CPC title