Method of rolling to impart triangular section

Details Method of rolling to impart triangular section Method of rolling to impart triangular section

1986-02-13

1986-12-16

Husar, Francis S.

Metal deforming

By use of roller or roller-like tool-element

72234, 72366, B21B 108

Patent

active

046287183

ABSTRACT:
A rolling apparatus has a grooved roll rotatable about an axis, having an outer roll surface, and formed with a radially outwardly open groove having a pair of frustoconical groove flanks extending to the outer roll surface and spaced axially apart at the roll surface by a groove width. Juxtaposed with this grooved roll is a ridged roll rotatable about an axis parallel to the axis of the grooved roll and formed with a ridge engaging radially in the groove, and having an at least partially cylindrical outer ridge surface centered on the respective axis and a pair of annular axially oppositely directed ridge faces flanking the ridge outer surface. The ridge outer surface forms with the flanks of the groove a rolling opening extending perpendicular to a plane including the axes and having a maximum dimension measured parallel to the axes which is smaller than the groove width. The rolls are rotated oppositely about the respective axes and a workpiece having a maximum width measured parallel to the axes which is larger than the ridge width is fed to the opening in a direction perpendicular to the plane. More particularly the workpiece is oriented so that the sectional shape of same is upside down compared to the sectional shape of the opening.

REFERENCES:
patent: 3561105 (1971-02-01), Cofer

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