Importance

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Abstract

A method for working a functional part, which extends in a longitudinal direction and has a lateral surface that surrounds a longitudinal central axis of the functional part running in the longitudinal direction and has an end face bounding the functional part at a free end in the axial direction, may involve pressing a punch that can be moved in the longitudinal direction of the functional part against the end face of the functional part, while the functional part is initially located in a cavity of a tool, at least over a partial portion of its longitudinal extent that adjoins its free end, which cavity is bounded in the radial direction with respect to the longitudinal central axis by a wall surface surrounding the lateral surface and lying at least partially against the lateral surface, and pulling off the tool from the functional part over the free end of the functional part over a pulling-off travel, while the punch remains pressed against the end face of the functional part, at least over a partial travel of the pulling-off travel of the tool from the functional part. A material flow of material of the functional part is brought about by the tool during the pulling-off of the tool from the functional part.

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First Claim