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Method of manufacturing a micromechanical part

一种机械部件、部件的技术，应用在这种类型的部件领域，能够解决损坏这种部件、复杂、可微加工材料摩擦性能不足等问题

Active Publication Date: 2010-01-13
THE SWATCH GRP RES & DEVELONMENT LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the insufficient tribological properties of micromachinable materials, it is not yet possible to use them for all clock components, although it may be possible to manufacture balance springs
In addition, current manufacturing methods remain complex to implement and involve direct manipulation of manufactured components, at the risk of damaging such components

Method used

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  • Method of manufacturing a micromechanical part
  • Method of manufacturing a micromechanical part
  • Method of manufacturing a micromechanical part

Examples

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Embodiment Construction

[0033] shown in Figure 8 The example of FIG. 1 shows a flowchart of the method generally indicated with reference number 1 . Method 1 mainly comprises 6 steps 3, 5, 7, 9, 11 and 13 for manufacturing a mechanical part 51 whose core is made of a micromachinable material substrate. In fact, micromachinable materials, due to their precision of less than 1 micron, are particularly advantageous for the manufacture of, for example, watch components and advantageously replace the commonly used metallic materials.

[0034] In the description below, the micromachinable material may be a crystalline silicon-based material, such as single crystal silicon; crystalline silica, such as quartz; or crystalline alumina, such as corundum (also known as synthetic sapphire). Obviously, other micromachinable materials are conceivable.

[0035] Step 3 consists of obtaining a substrate 53 made of a micromachinable material similar to, for example, single crystal silicon wafers used in the manufact...

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PUM

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Abstract

The invention relates to a method of manufacturing (1) a mechanical part (51) including the following steps: a) providing (3) a substrate (53) made of micro-machinable material; b) etching (5), with help of photolithography, a pattern (50) that includes said part through said entire substrate; According to the invention, the method further includes the following steps: c) mounting (7) said etchedsubstrate on a support (55') so as to leave the top and bottom surfaces of said substrate accessible; d) depositing (9, C') a coating of better tribological quality than said micro-machinable material on the outer surface of said part e) releasing (11) the part from the substrate. The invention concerns the field of timepiece manufacture.

Description

technical field [0001] The present invention relates to methods of manufacturing mechanical components made of micromachinable materials, and more particularly to components of this type that can be used in the manufacture of clocks. Background technique [0002] The manufacture of clock components on crystalline silicon based materials is well known. Indeed, the use of micromachinable materials such as crystalline silicon has advantages in terms of manufacturing precision, thanks to current methodological advances, especially in the field of electronics. However, micromachinable materials cannot yet be used for all clock components, although it may be possible to manufacture balance springs, due to the insufficient tribological properties of micromachinable materials. Furthermore, current manufacturing methods remain complex to implement and involve direct manipulation of manufactured components, at the risk of damaging such components. Contents of the invention [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G04B99/00
CPCG04B13/026B81C99/008B81B2201/035G04D3/0069B81C2201/112B81C1/0096B81C1/00674G04B13/02Y10T29/49579G03F7/0002
Inventor R·丁格T·拉维内
Owner THE SWATCH GRP RES & DEVELONMENT LTD
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