B - Operations – Transporting – 21 – H
Patent
B - Operations, Transporting
21
H
B21H 5/02 (2006.01) B21D 15/02 (2006.01) B21D 17/04 (2006.01) B21H 7/18 (2006.01)
Patent
CA 2591958
The invention relates to a method for producing longitudinal grooves in cylindrical workpieces using a rolling method which follows a preforming method.
L'invention concerne un procédé pour réaliser des rainures longitudinales dans des pièces cylindriques par roulage précédé d'un préformage.
Manz Gerhard
Pieperhoff Hans-Joachim
Schlayer Dietmar
Fetherstonhaugh & Co.
Mueller Weingarten Ag
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