Longitudinal component with mass accumulations

B - Operations – Transporting – 21 – J

Patent

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Details

B21J 1/04 (2006.01) B21J 7/18 (2006.01) B21J 13/02 (2006.01) B23P 15/00 (2006.01)

Patent

CA 2465094

A method for forming a longitudinal component (1) with mass accumulation at each end thereof from an elongate blank. The method comprising, placing the blank in a cavity of a die means (20) having a longitudinal axis about which is disposed a plurality of movable forming elements (6, 7, 8, 9, 10, 11 etc), and at least first and second movable abutment elements spaced apart and disposed on the longitudinal axis at opposite ends of the cavity. Moving the forming elements into engagement with a central portion (2) of the blank thereby squeezing and narrowing the blank in the central portion, and urging resultant mass accumulations towards each end of the blank. Also relatively moving the first and second abutment elements (16, 17) towards each other along the longitudinal axis to engage with mass-accumulations at respective opposite ends of the cavity. This in combination with the forming elements determines the final form of the component.

Cette invention a trait à un procédé de façonnage d'un composant longitudinal (1), ayant une accumulation de masse à chaque extrémité, à partir d'une ébauche de forme allongée. Le procédé consiste à placer l'ébauche dans la cavité d'une matrice (20) autour de l'axe longitudinal de laquelle sont disposés plusieurs éléments mobiles de façonnage (6, 7, 8, 9, 10, 11 etc.). Aux extrémités de la cavité se trouvent au moins deux butées mobiles séparées et disposées sur cet axe longitudinal. On déplace les éléments de façonnage afin de les mettre en contact avec la partie centrale (2) de l'ébauche, d'écraser et d'amincir cette partie centrale. On pousse alors les accumulations de masses résultantes vers chaque extrémité de l'ébauche. On rapproche également la première (16) butée de la seconde (17) le long de l'axe longitudinal de manière à les mettre en contact avec les accumulations de masses au niveau des extrémités de la cavité, ce qui, en association avec le déplacement des éléments de façonnage, détermine la forme finale du composant.

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