Patent ID: 6192582
Filing Date: 2001-02-27
Classification: B21D,F01L,F16C,F16H,Y10T

Abstract:
A process for producing multiple functional elements, for use in producing assembled hollow shafts with external functional elements, comprising the steps of:producing the individual functional elements from tubes with a profile corresponding to the functional elements;combining the functional elements into multiple cams on an inner shaft tube, whereby non-round functional elements have, in an axial direction, annular projections concentric relative to a base circle, the annular projections having an internal diameter that is slightly larger than an external diameter of the shaft tube, the non-round elements having lateral edges with an annular region of approximately half wall thickness that complements a wall thickness of an adjacent non-round functional element so as to achieve a full wall thickness of the shaft; andproducing the annular projections by reforming the profile tubes.