B - Operations – Transporting – 21 – F
Patent
B - Operations, Transporting
21
F
B21F 45/24 (2006.01) B21D 53/36 (2006.01) F16B 15/00 (2006.01) F16B 15/08 (2006.01)
Patent
CA 2685998
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.
La présente invention concerne un procédé de réalisation d'une bande de filons (1) se composant d'une pluralité de filons (2) parallèles entre eux. Selon ce procédé, une bande de tôle est tout d'abord pré-dentelée sur un ou deux côtés pour former les filons (2), les filons (2) ainsi formés restant reliés entre eux par des brides (3). Pour assurer un formage ultérieur des brides (3) pour en faire de fines brides de séparation qui peuvent facilement être rompues et forment lors de la séparation des surfaces de séparation lisses et présentant peu d'arêtes, la bande de filons (1) subit un processus de foulage au cours duquel chaque bride (3) subit de multiples flexions autour de son axe longitudinal, de sorte que des fissures de fatigue se forment dans la zone des brides (3), et que la bride de séparation se trouve ainsi formée.
Kirby Eades Gale Baker
Stahl Karl-Hermann
LandOfFree
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