Method for forming a workpiece by flow-forming

Details Method for forming a workpiece by flow-forming Method for forming a workpiece by flow-forming

B - Operations, Transporting

21

H

B21H 5/00 (2006.01) B21D 53/00 (2006.01) B21D 53/28 (2006.01) B21H 5/02 (2006.01) B21J 5/12 (2006.01) B21K 1/30 (2006.01) B21H 7/18 (2006.01)

Patent

CA 2275559

A method for working or forming a workpiece by flow-forming has particular application to the manufacture of internal teeth on the workpiece. A cup-shaped preform or blank is axially-fixed against a tool chuck and is pressed by means of at least one rolling body onto said tool chuck, and then the blank is rotated relative to the rolling body. The at least one rolling body, at the start of forming, at the open end of the blank is pressed against the cylinder wall area thereof, and in axial relative movement is guided in forming contact over the cylinder wall area to the base of the blank.

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