TUBULAR ARTICLES WITH VARYING WALL THICKNESS
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United States of America Patent
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Issued Date -
Oct 25, 2012
app pub date -
Jul 3, 2012
filing date -
Oct 28, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A method for manufacturing a one-piece axle tube housing with localized sections of increased wall thickness includes providing a tube blank, inserting a mandrel having a reduced diameter profile, passing the tube through an extrusion die to conform the tube to the shape of the mandrel; and extraction of the mandrel from the tube to cause outward deformation of the tube at specific locations. A further reducing step may be used to form the final desired profile, including reduced inner and outer diameters along sections of the axle tube housing.
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