Brazed bimetal external part of a timepiece
AssigneeThe Swatch Group Research and Development Ltd
InventorDaniel Knuchel
Life of this patent
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Abstract
A method of manufacturing an external part of a timepiece, including: providing a metallic base made of a first material including titanium and/or a first titanium alloy; providing at least one metallic cover plate made of a second material, the second material including a second metal chosen from among gold or platinum, and/or a second alloy including at least gold or platinum, the at least one cover plate being of a thickness greater than or equal to 0.5 millimeters; brazing the cover plate onto the base with a braze material chosen for brazing titanium with gold or respectively platinum to form a bimetallic blank; and shaping the bimetallic blank to give the external part its final form.
Claims28
1-20. (canceled)
A method of manufacturing an external part of a timepiece or of a piece of jewellery, comprising:
- providing a metallic base made of a first material which is titanium and/or a first titanium alloy;
- providing at least one metallic cover plate made of a second material, the second material includes a second metal chosen from among gold, platinum, palladium or silver, and/or a second alloy including at least gold or platinum or palladium or silver, the at least one cover plate being of a thickness greater than or equal to 0.5 millimeters;
- brazing the at least one cover plate onto the base to form a bimetallic blank;
- shaping the bimetal blank to give the external part of the timepiece or the piece of jewellery a final form thereof.
An external part of a timepiece, wherein the external part is made of bimetallic material including a metallic base made of a first material including titanium and/or a first titanium alloy, and which is nickel free, and at least one metallic cover plate made of a second material including a second metal chosen from among gold and platinum and/or a second alloy including at least gold or platinum, and the base and the cover plate are brazed to each other, and the cover plate has a thickness E greater than or equal to 0.5 millimeters.
A piece of jewellery, wherein the piece is made of bimetallic material including a metallic base made of a first material, which is titanium or a titanium alloy, and which is nickel free, and at least one metallic cover plate made of a second material, the second material includes a second metal chosen from among gold, platinum, palladium or silver, and/or includes a second alloy including at least gold or platinum or palladium or silver, and the base and the cover plate are brazed to one another, and the at least one cover plate has a thickness greater than or equal to 0.5 millimeters.
Dependencies are inferred from the claim text.