B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 7/08 (2006.01) B21D 39/02 (2006.01) B23P 11/00 (2006.01) B29C 37/00 (2006.01) B29C 65/48 (2006.01) B29C 65/56 (2006.01) B62D 27/02 (2006.01) F16B 2/00 (2006.01) F16B 17/00 (2006.01)
Patent
CA 2163647
A method for obtaining a mechanical lock between two surfaces (10, 12) by providing particulate granules (18) between the surfaces and forcing the surfaces (10, 12) toward one another at a pressure sufficient to embed a substantial number of the particulate granules (18) in both of the surfaces. The method is preferably utilized during the formation of a hem flange, so as to provide immediate handling strength to the hem flange without the need for adhesive compositions.
L'invention concerne un procédé d'obtention d'un verrouillage mécanique entre deux surfaces (10, 12) consistant à placer des granulés particulaires (18) entre les surfaces et à forcer les surfaces (10, 12) l'une vers l'autre à une pression suffisante pour encastrer un nombre substantiel de granulés particulaires (18) dans les deux surfaces. Le procédé est utilisé de préférence durant la formation de rebords pliés en double pour conférer une solidité au rebord plié en double sans nécessiter de composition adhésive.
Pelts Gregory A.
Sweeney Eugene A.
Lord Corporation
Perley-Robertson Hill & Mcdougall Llp
LandOfFree
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