B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
B21D 39/03 (2006.01) A47J 27/00 (2006.01) A47J 36/02 (2006.01) B23P 11/00 (2006.01) B44B 5/00 (2006.01)
Patent
CA 2158754
The invention relates to a method for modifying the characteristics of a metal (2) surface (1), by application to the surface (1) of a perforated sheet (3) of another metal (4), the perforated sheet (3) having to be secured onto the surface (1) by die stamping. According to the invention the perforated sheet (3) is shaped so that each perforation (6) has a lip (5) and a lip end (7); the sheet (3) thus shaped is applied to the surface (1); the shaped sheet (3) is crimped by die stamping onto the surface (1), the straightening of the lips (5) and of the lip ends (7) which is associated with the flow material (2) of the surface (1) into the perforations (6) producing a reliable anchorage of the sheet on the surface.
L'invention concerne un procédé pour modifier les caractéristiques d'une surface (1) de métal (2), par application sur la surface (1) d'une feuille perforée (3) d'un autre métal (4), la feuille perforée (3) devant être fixée sur la surface (1) par matriçage. Selon l'invention, on façonne la feuille perforée (3) de telle sorte que chaque perforation (6) présente une lèvre (5) et une extrémité de lèvre (7); on applique la feuille (3) ainsi façonnée sur la surface (1), les lèvres (5) des perforations (6) formant des proéminences dirigées vers la surface (1); on sertit, par matriçage, la feuille façonée (3) sur la surface (1), le redressement des lèvres (5) et des extrémités de lèvre (7) associé au fluage de matière (2) de la surface (1) dans les perforations (6) réalisant un ancrage sûr de la feuille sur la surface.
Fetherstonhaugh & Co.
Seb S.a.
LandOfFree
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