EXTRUDER FOR USE IN AN ADDITIVE MANUFACTURING PROCESS
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United States of America Patent
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Issued Date -
May 4, 2017
app pub date -
Nov 4, 2015
filing date -
Nov 4, 2015
priority date (Note) -
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Abstract
An extruder for use in an additive manufacturing process. The extruder includes an inner housing and an outer housing. A material feed channel extends through the extruder. The material feed channel is positioned between the inner housing and the outer housing. The inner housing is mounted to allow the inner housing to rotate relative to the outer housing, and the outer housing is mounted to allow the outer housing to rotate relative to the inner housing. The rotation of the inner housing and outer housing moves material through the material feed channel and introduces shear forces to the material to decrease the viscosity of the material. A heating element is provided proximate the housing and extends about the entire circumference of the housing. The heating element provides even and controlled heating across the entire extruder.
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