Method for deforming a tube near one of its ends and tool used in this method
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United States of America Patent
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Sep 21, 2004
Grant Date -
Oct 16, 2003
app pub date -
Apr 28, 2003
filing date -
Nov 30, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention concerns a method using steps of placing a tube in an opening matrix having an impression corresponding to the desired final external shape; inserting the end of the tube into a cavity of a shaping component, the cavity having a base, a side wall with adapted shape, and an opening opposite the base; pressing the end of the tube against the base of the cavity, leaving a clearance between the opening of the cavity and the matrix; applying an essentially axial force on the end of the tube, the zone application of the force rotating about a longitudinal axis of the tube thereby causing gradual deformation of the tube; withdrawing the end of the deformed tube outside the cavity of the shaping component and outside the matrix.
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