Method for manufacturing a micromechanical fastening element, shaping tool for producing an impression of the micromechanical fastening element, and micromechanical fastening element
AssigneeNivarox-FAR S.A.
InventorsFrédéric HAEFELI, Raphaël ZBINDEN, Mickaël DUBIEF, Raphaël THEURILLAT
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Abstract
A method for manufacturing a fastening element including a step of producing a blank of the fastening element including a head and a shank connected to each other, followed by a step of forming an impression in the head, the forming step including an operation of machining the impression, carried out with a cutting member and an operation of matting a target surface of the impression carried out with a matting member.
Claims16
A method for manufacturing a micromechanical fastening element, wherein the method comprises a step of producing a blank of the fastening element comprising a head and a shank connected to each other, followed by a step of forming an impression in the head, said forming step comprising an operation of machining the impression, carried out with a cutting member, and an operation of matting a target surface of the impression, carried out with a matting member.
A shaping tool for producing an impression of a micromechanical fastening element, comprising a body extending along a longitudinal axis about which the tool is intended to be rotated, wherein the tool being characterised in that it includes, arranged at a longitudinal end of the body, a cutting member comprising a cutting edge intended to remove material from a fastening element so as to generate an impression when the tool is rotated, and a matting member comprising an active surface intended for matting a target surface of the impression when the tool is rotated.
A micromechanical fastening element made of a metallic material comprising a shank connected to a head, said head comprising an impression extending from an opening to a back surface, wherein the back surface has a Ra comprised between 0.01 μm and 0.1 μm.
Dependencies are inferred from the claim text.