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Screw Flight Cracks

Modified on Sunday, 01 February 2015 05:55 PM by mpieler Categorized as Extrusion Hints
Screw Flight Cracks
Vol.20 #1, Mar., 1993

It is very common for there to be a large number of hairline cracks in the flight surfacing material of an extruder screw. This is not a problem as long as pieces don't come out of the surface.(Usually next to the edge of the flight.)

If this happens, have the screw repaired.

See also:
  • Screw inspection
  • Screw performance
  • Screw wear

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