Process and device for producing camshafts

Details Process and device for producing camshafts Process and device for producing camshafts

B - Operations, Transporting

21

D

B21D 53/84 (2006.01) F01L 1/047 (2006.01) B21D 26/02 (2006.01)

Patent

CA 2257354

In order to be able economically to produce longitudinal hollow body components, especially camshafts, not only with a saving in tooling and working steps but also with increased efficiency, projections or cams (6) from a hollow shaft (5) are made by high internal pressure forming in such a way that the form and/or position of the projections (6) can be shaped in several steps.

L'invention vise à réduire les coûts de production de composants creux allongés (5) notamment d'arbres à cames, non seulement en vue d'économiser des outils et des opérations de travail, mais aussi en vue d'augmenter leur rendement. A cet effet, on façonne des parties saillantes ou des cames (6) d'une seule pièce sur un arbre creux (5), selon un procédé de formage à haute pression interne, de façon à former les parties saillantes (6) en plusieurs étapes, en ce qui concerne leur structure et/ou leur position.

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