Method for producing an extruded bearing journal

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United States of America Patent

PATENT NO 9746030
SERIAL NO

14390477

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Abstract

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In a method for producing an extruded bearing journal, the bearing journal is extruded in an extrusion tool by means of at least one extrusion punch and, after the extrusion of the bearing journal, reworking of the bearing journal is performed in order to improve the cylindricity of the bearing journal at least over a section of the longitudinal extent of the bearing journal. During the reworking, the bearing journal is arranged, at least over a section of its longitudinal extent adjoining its free end, in a cavity that is delimited in a radial direction of the bearing journal by a wall surface surrounding the lateral surface of the bearing journal, and a reworking punch which is movable in the longitudinal direction of the bearing journal is moved toward the free end of the bearing journal and is pressed against the face surface of the bearing journal and, in this way, a plastic deformation of the bearing journal, with a flow of material of the bearing journal, is effected.

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Patent Owner(s)

Patent OwnerAddress
THYSSENKRUPP PRESTA AKTIENGESELLSCHAFTESSANESTRASSE 10 ESCHEN 9492

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Keppler-Ott, Thomas Feldkirch, AT 2 2

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