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Extrusion

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Extrusion Lesson/Tutorial   This is a forming operation where a metal bar is pushed by a ram through a die (a die is to metal forming as a cookie cutter is to baking cookies).  When the extruded piece of metal comes out the other end of the die it has the desired shape and reduced cross-sectional area.  Rods and tubing are made this way.
Experiment with Extrusion 

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