# US 10,369,660 B2 · Fabrication method including a modified profile-turning step > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,369,660 B2 - Document ID: US10369660B2 - Status: Granted - Kind: B2 - Application number: 15/170,218 - Filed: 2016-06-01 - Published: 2016-12-22 - Granted: 2019-08-06 - Earliest claimed: 2015-06-16 - Assignees: Nivarox-FAR S.A. - Applicants: Nivarox-FAR S.A. - Inventors: Pierre Cusin; Davy Cretenet; Marc Stranczl; Raphael Garret - Web page: https://patentgrep.com/patent/US10369660B2 ## CPC - B23K 26/21: by welding - B23K 26/323: involving parts made of dissimilar metallic material - B23K 26/324: involving non-metallic parts - G04B 13/02: Wheels; Pinions; Spindles; Pivots (bearings G04B31/00 {; chain wheels, spindles for chain wheels, also chains and driving weights G04B1/08}) - G04B 15/14: 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)} - G04B 17/34: for fastening the hairspring onto the balance - G04B 19/044: {Mounting and setting of the hands on the axle} - G04D 99/00: Subject matter not provided for in other groups of this subclass - B23K: SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM - G04B: MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS (spring- or weight-driven mechanisms in general F03G; electromechanical clocks or watches G04C; electromechanical clocks with attached or built-in means operating any device at pre-selected times or after predetermined time intervals G04C23/00; clocks or watches with stop devices G04F7/08) - G04D: APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES ## Abstract A method for fabrication of a part intended to be welded including a step for forming an oblique wall between two perpendicular surfaces capable of reducing the contact surface of the face to be welded. ## Claims ### Claim 1 A method for fabrication of a timepiece component comprising the following steps: forming a first part made from metal and a second part made from silicon or ceramic; mounting a surface of the first part on a surface of the second part welding, by laser electromagnetic radiation, the surface of the first part mounted on the surface of the second part, in order to secure the parts to each other and to form the timepiece component; wherein the step of forming the first part includes the following phases: taking a bar; profile-turning the bar to form at least one diameter portion comprising a substantially vertical surface and a substantially horizontal surface and an oblique wall between the substantially vertical surface and the substantially horizontal surface in order to reduce the substantially horizontal surface to receive the surface of the second part. ### Claim 2 (depends on 1) The method according to claim 1, wherein the second part also includes at least a partial coating of metal, silicon oxide, silicon nitride, silicon carbide or an allotrope of carbon. ### Claim 3 (depends on 1) The method according to claim 1, wherein the first part includes an iron alloy, a copper alloy, nickel or an alloy thereof, titanium or an alloy thereof, gold or an alloy thereof, silver or an alloy thereof, platinum or an alloy thereof, ruthenium or an alloy thereof, rhodium or an alloy thereof, or palladium or an alloy thereof. ### Claim 4 (depends on 1) The method according to claim 1, wherein the second part forms all or part of a case, a dial, a flange, a crystal, a bezel, a push-piece, a crown, a case back, a hand, a bracelet or strap, a balance spring, a balance wheel, a pallets, a bridge, an oscillating weight, a wheel or an escape wheel. ### Claim 5 A method for fabrication of a timepiece component comprising the following steps: forming a first part made from metal and a second part made from silicon or ceramic; mounting a surface of the first part on a surface of the second part; welding, by laser electromagnetic radiation, the surface of the first part mounted on the surface of the second part, in order to secure the parts to each other and to form the timepiece component; wherein the step of forming the first part includes the following phases: taking a bar; profile-turning the bar to form at least one diameter portion comprising a substantially vertical surface and a substantially horizontal surface and a curved wall around the substantially horizontal surface so that the substantially horizontal surface is limited to a line for receiving the surface of the second part. ### Claim 6 (depends on 5) The method according to claim 5, wherein the second part also includes at least a partial coating of metal, silicon oxide, silicon nitride, silicon carbide or an allotrope of carbon. ### Claim 7 (depends on 5) The method according to claim 5, wherein the first part includes an iron alloy, a copper alloy, nickel or an alloy thereof, titanium or an alloy thereof, gold or an alloy thereof, silver or an alloy thereof, platinum or an alloy thereof, ruthenium or an alloy thereof, rhodium or an alloy thereof, or palladium or an alloy thereof. ### Claim 8 (depends on 5) The method according to claim 5, wherein the second part forms all or part of a case, a dial, a flange, a crystal, a bezel, a push-piece, a crown, a case back, a hand, a bracelet or strap, a balance spring, a balance wheel, a pallets, a bridge, an oscillating weight, a wheel or an escape wheel. ### Claim 9 A method for fabrication of a timepiece component comprising the following steps: forming a first part made from metal and a second part made from silicon or ceramic; mounting a surface of the first part on a surface of the second part; welding, by laser electromagnetic radiation, the surface of the first part mounted on the surface of the second part, in order to secure the parts to each other and to form the timepiece component; wherein the step of forming the first part includes the following phases: taking a bar; profile-turning the bar to form at least one diameter portion comprising a substantially vertical surface and a substantially horizontal surface and an undercut between the substantially vertical surface and the substantially horizontal surface intended to reduce the substantially vertical surface to receive the surface of the second part. ### Claim 10 (depends on 9) The method according to claim 9, wherein the second part also includes at least a partial coating of metal, silicon oxide, silicon nitride, silicon carbide or an allotrope of carbon. ### Claim 11 (depends on 9) The method according to claim 9, wherein the first part includes an iron alloy, a copper alloy, nickel or an alloy thereof, titanium or an alloy thereof, gold or an alloy thereof, silver or an alloy thereof, platinum or an alloy thereof, ruthenium or an alloy thereof, rhodium or an alloy thereof, or palladium or an alloy thereof. ### Claim 12 (depends on 9) The method according to claim 9, wherein the second part forms all or part of a case, a dial, a flange, a crystal, a bezel, a push-piece, a crown, a case back, a hand, a bracelet or strap, a balance spring, a balance wheel, a pallets, a bridge, an oscillating weight, a wheel or an escape wheel.