Robert Boschgmbh

Christian Dueformantel

Hendrik Jahnle

Norman Lung

Victor Roman

Markus Streicher

Sebastian Herbster

The invention relates to a print head () for a 3D printer (), comprising a feed zone () with a feed () for feedstock () with variable viscosity, a melting zone () comprising a heating element () and an outlet opening () for the liquid phase () of said feedstock (), as well as a conveyor device () for conveying the feedstock () from the feed zone () into the melting zone (), said conveyor device () comprising a plunger () that can be inserted into said feed zone ().

Print head for a 3D printer, with improved control

The invention relates to a method for the additive manufacturing of a three-dimensional workpiece, in the case of which a thermoplastic material is transferred into a liquid phase by heating and is applied selectively to locations which are predetermined by the shape and the dimensions of the workpiece, wherein the workpiece is constructed in layers on a substrate carrier. According to the invention, in order for the material to be cooled and hardened, the workpiece, which is constructed in layers on the substrate carrier, is moved from a heated construction chamber into a cooling chamber, which is separate from the construction chamber. The invention also relates to an apparatus for the additive manufacturing of a three-dimensional workpiece.

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Esslingen, Germany

Christian Dueformantel