Concept Laser Gmbh

General Electric Company

Cl Schutzrechtsverwaltungs Gmbh

Viktor Engel

Christian Diller

Florian Bechmann

Jens Stammberger

Rene Du Cauze De Nazelle

Daniel Winiarski

Florian Stefan Hoefler

Rachel Wyn Levine

Christian Thomas Wakelam

Andreas Ullrich

Tobias Dressel

Daniel Fischer

Hannes Haderlein

Wolfgang Lauer

Wolfgang Dr Lauer

Apparatus () for additively manufacturing three-dimensional objects () by means of successive layerwise selective irradiation and consolidation of layers of a powdered build material () which can be consolidated by means of an energy beam (), the apparatus () comprising a process chamber () and a stream generating device () configured to generate a gaseous fluid stream at least partly streaming through the process chamber (), the gaseous fluid stream being capable of being charged with non-consolidated particulate build material, particularly smoke or smoke residues generated during operation of the apparatus (), while streaming through the process chamber (), wherein the stream generating () device comprises at least two separate stream generating units () each being configured to generate a respective gaseous fluid stream.

Apparatus for additively manufacturing three-dimensional objects

An apparatus () for additive manufacturing of three-dimensional objects () by successive, selective layer-by-layer exposure and thus successive, selective layer-by-layer solidification of construction material layers of construction material () that can be solidified by means of an energy beam in a process chamber () of the apparatus with a defined process chamber height (H), comprising a flow device () provided for generating an, especially inert, gas flow () flowing through the process chamber () between an inflow section () and an outflow section (), wherein the gas flow () flows through the process chamber () across the entire process chamber height (H), wherein the gas flow () is subdivided into several partial gas flows (-) flowing through the process chamber () parallel on top of each other, which differ in at least one flow parameter affecting the flow characteristics of the respective partial gas flows (-).

Apparatus for additive manufacturing of three-dimensional objects

A flow control device for an additive manufacturing system is provided. The flow control device includes a gas supply configured to discharge a gas, a first flow modifier configured to modify at least one flow characteristic of a first portion of the gas, and a second flow modifier configured to cooperate with the first flow modifier to modify the at least on flow characteristic of the first portion of the gas. The second flow modifier is further configured to modify at least one flow characteristic of a second portion of the gas, and the first flow modifier and the second flow modifier are configured to cooperate to direct at least a portion of the first portion and the second portion of the gas towards a melt pool in a plurality of particles.

Systems and methods for additive manufacturing flow control devices

Growing community of inventors

Coburg, Germany

Viktor Engel