Composite component with stressed resilient means

Patent metadata

Field	Value
Publication number	US-9891587-B2
Application number	US-201615340288-A
Country	US
Kind code	B2
Filing date	Nov 1, 2016
Priority date	Dec 17, 2015
Publication date	Feb 13, 2018
Grant date	Feb 13, 2018

Abstract

The invention relates to a composite component comprising an element with an opening into which extend stressed resilient means confined within a volume of an at least partially amorphous metal alloy, said composite component comprising a passage that, is centered with respect to said stressed resilient means.

First claim

What is claimed is:

1. A method for fabrication of a composite component comprising the following steps:
a) forming an element with an opening into which resilient means extend;
b) placing a tool between the resilient means of the element so as to place the resilient means under stress;
c) overmoulding the element with an at least partially amorphous metal alloy so as to confine the resilient means under stress;
d) removing the tool to form the composite component provided with a passage of corresponding shape to the tool between the resilient means under stress.

2. The method according to claim 1 , wherein the resilient means form at least two deformable strips connected in one-piece to the wall of the opening in the element.

3. The method according to claim 2 , wherein at least one end of one of the at least two deformable strips is connected in one-piece to at least one end of another of the at least two deformable strips.

4. The method according to claim 3 , wherein the at least two interconnected deformable strips form a V-shaped structure.

5. The method according to claim 3 , wherein the at least two interconnected deformable strips form a polygon.

6. The method according to claim 3 , wherein the at least two interconnected deformable strips form a Y-shaped structure.

7. The method according to claim 1 , wherein, in step c), an at least partially amorphous metal alloy blank is heated between its glass transition temperature and its crystallization temperature in order to overmould the resilient means.

8. The method according to claim 1 , wherein, in step c), the at least partially amorphous metal alloy overmould forms a protruding portion of the element so as to provide a thickness of the composite component formed entirely of at least partially amorphous metal alloy.

9. The method according to claim 1 , wherein, in step c), a mould is placed on the element to delimit the area of the element that can be overmoulded with the at least partially amorphous metal alloy.

10. A composite component comprising an element with an opening into which extend stressed resilient means confined within a volume of at least partially amorphous metal alloy, the composite component comprising a passage that is centred with respect to the stressed resilient means.

11. The composite component according to claim 10 , wherein the resilient means form at least two deformable strips connected in one-piece to the wail of the opening in the element.

12. The composite component according to claim 11 , wherein at least one end of one of the at least two deformable strips is connected in one-piece to at least one end of another of the at least two deformable strips.

13. The composite component according to claim 12 , wherein the at least two interconnected deformable strips form a V-shaped structure.

14. The composite component according to claim 12 , wherein the at least two interconnected deformable strips form a polygon.

15. The composite component according to claim 12 , wherein the at least two interconnected deformable strips form a V-shaped structure.

16. The composite component according to claim 10 , wherein the volume of at least partially amorphous metal alloy forms a protruding portion of the element so as to provide a thickness of the composite component formed entirely of at least partially amorphous metal alloy.

17. The composite component according to claim 10 , wherein the element includes doped or undoped single crystal silicon, doped or undoped polycrystalline silicon, silicon oxide, quartz, silica, single crystal corundum, polycrystalline corundum, alumina, ruby, silicon nitride or silicon carbide.

18. The composite component according to claim 17 , wherein the element includes at least a partial coating of silicon oxide, silicon nitride, silicon carbide or an allotrope of carbon.

19. The composite component according to claim 10 , wherein the volume of at least partially amorphous metal alloy is formed of a magnesium-based, titanium-based, zirconium-based, iron-based, cobalt-based, gold-based, palladium-based or platinum-based alloy.

20. The composite component according to claim 19 , wherein the volume of at least partially amorphous metal alloy is formed by an alloy of the ZrTiCuNiBe, PdCuNiP or PtCuNiP type.

21. An assortment comprising an arbor driven into the passage of a composite component according to claim 10 .

22. The assortment according to claim 21 , wherein the arbor is arranged only to be pressed against the volume of at least partially amorphous metal alloy of the composite component.

23. The assortment according to claim 21 , wherein the passage is arranged so that the arbor is only pressed against the volume of at least partially amorphous metal alloy of the composite component.

24. The assortment according to claim 21 , wherein the composite component is locked against a shoulder of the arbor.

25. The assortment according to claim 21 , wherein the assortment forms all or part of a gear train of a timepiece.

26. The assortment according to claim 21 , wherein the assortment forms all or part of an escapement system ( 103 ) of a timepiece.

27. The assortment according to claim 21 , wherein the assortment forms all or part of a resonator.

Assignees

• Nivarox Sa
• Nivarox—Far S A

Inventors

• Dubois Philippe
• Winkler Yves

Classifications

• C22C45/10

  with molybdenum, tungsten, niobium, tantalum, titanium, or zirconium {or Hf} as the major constituent · CPC title

• G04B15/14 Primary

  Component parts or constructional details, e.g. construction of the lever or the escape wheel {(assembly and manufacture of the spring G04B1/145; assembly and manufacture of components, e.g. pinions, spindles G04B13/02; lubrication of clockwork bearings G04B31/008; oils for clockwork bearings in general G04B31/08)} · CPC title

• C22C45/003

  with one or more of the noble metals as major constituent · CPC title

• G04B13/022

  with parts made of hard material, e.g. silicon, diamond, sapphire, quartz and the like · CPC title

• G04D3/00

  Watchmakers' or watch-repairers' machines or tools for working materials {(metal working in general class B23)} · CPC title