EXTRUSION FOR 3D PRINTING

An extruder for 3D printing includes an outlet for providing extruded material and a feedstock inlet piece for receiving material into the extruder, including cooling means for cooling said material. A reservoir is connected to the outlet and connects with the feedstock inlet piece via a channel. Th...

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Bibliographic Details
Main Authors DE PAUW, Jan, GALLE, Jonas
Format Patent
LanguageEnglish
Published 04.07.2024
Subjects
ADDITIVE MANUFACTURING TECHNOLOGY
ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
CASTING
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
WORKING METALLIC POWDER
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Summary:An extruder for 3D printing includes an outlet for providing extruded material and a feedstock inlet piece for receiving material into the extruder, including cooling means for cooling said material. A reservoir is connected to the outlet and connects with the feedstock inlet piece via a channel. The channel width is lower than the reservoir width. The extruder includes at least one heater for melting material in the reservoir, in particular a heater for melting material in a reservoir part, and a heater for maintaining molten material in a second reservoir part, close to the outlet, and separate from the first by a thermal break, and a controller for controlling the temperature gradient of the material through the channel. The controller is configured to maintain the level of molten material at least at the junction between the reservoir and the channel or along the channel during extrusion.
Bibliography:Application Number: US202218558078