Title:
METHOD FOR PRODUCING AN EXTRUDED BEARING JOURNAL
Document Type and Number:
WIPO Patent Application WO/2013/149270
Kind Code:
A8
Abstract:
The invention relates to a method for producing an extruded bearing journal (1), in which said bearing journal (1) is extruded in a pressing tool by means of at least one extruded die (22, 23) and said journal bearing (1) is post-machined after being extruded (1) in order to improve the cylindricity of the bearing journal (1) at least over one section of the longitudinal extension of said bearing journal (1) During post-machining, said bearing journal (1) is arranged at least over one section of its longitudinal extension adjacent to the its free end, in a chamber which, in the radial direction of the bearing journal (1), is defined by a wall surface (30, 32) surrounding the lateral surface (7) of the bearing journal (1), and a post-machining die (29, 31) which can be moved in the longitudinal direction of the bearing journal (1), is moved counter to the free end of the bearing journal (1) and pressed onto the front surface (8) of the bearing journal (1). As a result, the bearing journal (1) is plastically deformed with a flow of material of the bearing journal (1)
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Inventors:
KEPPLER-OTT THOMAS (AT)
Application Number:
PCT/AT2012/000085
Publication Date:
November 28, 2013
Filing Date:
April 03, 2012
Export Citation:
Assignee:
THYSSENKRUPP PRESTA AG (LI)
KEPPLER-OTT THOMAS (AT)
KEPPLER-OTT THOMAS (AT)
International Classes:
B21K1/76; B21J5/02; F16D3/41
Attorney, Agent or Firm:
HOFMANN, Ralf et al. (Hörnlingerstrasse 3P.O. Box 50, Rankweil, AT)
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