Covestro Deutschland Ag

Stratasys, Inc.

Covestro Intellectual Property Gmbh & Co. Kg

Jonas Künzel

Dirk Achten

Martin Melchiors

Roland Wagner

Harald Kraus

Thomas Büsgen

Peter Reichert

Nicolas Degiorgio

Wolfgang Arndt

Jörg Büchner

Michael Kessler

Levent Akbas

Jörg Tillack

Derk Erich Wandner

Fabian Schuster

Ting Liu

Ralf Rott

Maximilian Wolf

The invention relates to a print head () for an additive fused deposition modelling method having a thermoplastic construction material, comprising:&#x2014;at least one inlet () for receiving a construction material () into the print head;&#x2014;at least one melt region, for melting the construction material (), which is arranged downstream of the inlet () and is fluidically connected, at least temporarily, to the inlet (); and&#x2014;at least one first outlet () that is fluidically connected, at least temporarily, to the melt region (), for discharging melted construction material () out of the melt region () at a first discharge rate; wherein&#x2014;the print head () also comprises at least one second outlet () that is fluidically connected, at least temporarily, to the melt region () for discharging melted or non-melted construction material () out of the melt region () at a second discharge rate; and&#x2014;the first discharge rate can be influenced by a first discharge rate influencing device () for the melted construction material ().

Print head, method and system for 3D printing having variable discharge rate

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Leverkusen, Germany

Jonas Künzel