Method of producing bodies of revolution

Details Method of producing bodies of revolution Method of producing bodies of revolution

B - Operations, Transporting

21

H

76/20, 76/23, 10

B21H 1/18 (2006.01) B21H 1/00 (2006.01) B21H 9/00 (2006.01)

Patent

CA 1264507

ABSTRACT A rotation body having different diameters along the length thereof is produced by: a) rotating a blank about the longitudinal axis thereof and working the rotating blank between two pressure zones to apply thereto a local pressure exceeding the flow limit of the blank material whereby circularly extending impressions of different diameters are worked into the blank, the pressure zones crossing each other; b) displacing the pressure zones relative to each other while applying the local pressure, one of the pressure zones being displaced in a direction at an angle to its longitudinal extension and to the longitudinal direction of the pressure zone it crosses and the points of crossing of the crossing pressure zones forming a geometric line at an angle with the longitudinal axis of the blank to be worked; and c) displacing the blank in dependence on the geometric line and on the different diameters to be produced.

493464

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