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US 12,055,893 B2Granted
Method for producing a surface of revolution of a clock or watch component
AssigneeRolex SA
InventorsGiulio Cunto, Patrice Nagel, Alexandre Oliveira
Life of this patent
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Abstract
Method for producing a surface of revolution of a clock or watch component comprising a step of machining, with a femtosecond laser beam, a first surface of the clock or watch component so as to obtain a second surface, in particular so as to obtain a second surface whose roughness Ra is less than 100 nm, or less than 70 nm, and then a tribofinishing step applied to the second surface so as to obtain the surface of revolution.
Claims18
A method for producing a tribofinished surface of revolution of a clock or watch component, the method comprising:
- providing the clock or watch component having a first surface which is a surface of revolution having a first roughness,
- performing a first surface treatment including machining, with a femtosecond laser beam, the first surface so as to transform the first surface into a machined second surface of revolution having a second roughness wherein, in the machining, the first roughness of the first surface is reduced to the second roughness of 100 nm or less, and then
- performing a second surface treatment including performing tribofinishing applied to the machined second surface having the second roughness so as to transform the second surface into the tribofinished surface of revolution having a final roughness.
Dependencies are inferred from the claim text.