Method and apparatus for the manufacture of a terminal for a...

H - Electricity – 01 – M

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Details

H01M 2/30 (2006.01) B21K 21/08 (2006.01) B21K 21/10 (2006.01)

Patent

CA 2584533

A method of manufacturing a lead terminal for an accumulator by plastic deformation on a cold-working apparatus that has a shaping station (2) and at least one deformation station (30, 40, 50, 60, 80) by shaping, at the shaping station, a slug (7) that has a longitudinal extension along a longitudinal axis such as to provide base (9) and contact (8) parts for the terminal and a size commensurate with the size of the terminal end piece to be manufactured; transferring the slug (7) to the deformation station (30, 40, 50, 60, 80); carrying out a first deformation of the slug (7) for inner and outer shaping of its base part (9); and carrying out a second deformation of the slug (7) for performing at least a further inner and outer shaping of the base part (9), the deformations being performed sequentially as progressive deformation steps.

L'invention concerne un procédé de fabrication d'une borne en plomb destinée à un accumulateur par déformation plastique sur un appareil d'écrouissage qui présente une station de formage (2) et au moins une station de déformation (30, 40, 50, 60, 80). Ledit procédé comprend les étapes de formation, au niveau de la station de formage, d'un pion (7) qui présente une extension longitudinale le long d'un axe longitudinal de manière à former des parties de base (9) et de contact (8) pour la borne et une taille proportionnelle à la taille de l'embout pour borne à fabriquer ; de transfert du pion (7) vers la station de déformation (30, 40, 50, 60, 80) ; de réalisation d'une première déformation du pion (7) pour le formage intérieur et extérieur de sa partie de base (9) ; et de réalisation d'une seconde déformation du pion (7) pour la réalisation d'au moins un autre formage intérieur et extérieur de la partie de base (9), les déformations étant réalisées successivement sous forme d'étapes de déformation progressives.

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