Extruder for making curved metal workpiece
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United States of America Patent
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-
May 22, 2007
Grant Date -
Aug 10, 2006
app pub date -
Aug 5, 2003
filing date -
Aug 8, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An extruder for making a curved workpiece has an extruder frame including a counterbeam extending transversely of an extrusion direction and formed with a recess that is throughgoing in the direction and a tool recessed in the recess and including a die having a downstream face spaced upstream in the direction from a downstream side of the counterbeam. A hot metal block is pressed against an upstream face of the die to extrude a strand in the direction from the downstream face of the die. Immediately downstream of the die a transverse external force is applied to the strand to bend it. The tool includes a pressure plate that extends completely through the counterbeam in the extrusion direction.
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