Method of making strip formed by web-connected wires
AssigneeCent & Cent GmbH & Co. KG
InventorKarl-Hermann Stahl
Life of this patent
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Abstract
The method serves for the production of a wire strip (1) comprising a plurality of wires (2) arranged parallel to each other. For this purpose a metal strip is first pre-notched either on one side or both sides for the formation of the wires (2), whereby wires (2) are generated which are still connected to webs (3). To transform the webs (3) subsequently into thin, easy to separate and, when separated, smooth and burr-free separation webs forming separation areas, the wire strip (1) is subjected to a milling process during which each web (3) is subjected to a multiple bending strain along the longitudinal axis thereof in such a way that incipient cracks form, due to fatigue fracture, in the area of the webs (3), and thereby the separation web is created.
Claims23
A method of making a strip formed by a plurality of parallel wires wherein a sheet-metal strip is first grooved on one or both sides to form wires interconnected by webs, characterized in that, for the subsequent conversion of the webs into thin and easily separated webs that when separated form smooth and burr-free edge faces, the strip is subjected to a bending process during which each web is subjected to multiple bends along the longitudinal axis of the strip, wherein the strip is alternated between an inclined position and a declined position with respect to the lateral width of the strip as the strip is subjected to the multiple bends and in such a way that incipient cracks form due to fatigue fracture at the webs, and thereby a separation web is created.
Dependencies are inferred from the claim text.