Slm Solutions Group Ag

Nikon Slm Solutions Ag

Karsten Huebinger

Toni Adam Krol

Dieter Schwarze

Andreas Wiesner

Jan Wilkes

Christiane Thiel

Lukas Roesgen

Bodo Haack

Daniel Brueck

Eduard Gieser

Naveed Iqbal

André Hermann

Arne Neef

Peter Koerner

Daniel Kopschinski

Simon Mueller

Simon Steven

Felix Mutz

Bernd Mueller

Marcel Overberg

Torsten Kuntoff

Jonas Mersch

Kaj Merten Berggreen

Soenke Weiss

The invention is directed to a powder supply system () for use in an apparatus () for producing a three-dimensional work piece by irradiating layers of a raw material powder () with electromagnetic or particle radiation. The powder supply system () comprises a circuit line () configured to conduct a gas stream (), a conveying device () configured to convey the gas stream () through the circuit line (), a powder doser () configured to introduce a desired dose of raw material powder () into the gas stream () flowing through the circuit line (), a measuring unit () configured to measure at least one of a pressure and a volume flow in the circuit line () at a position downstream of the powder doser (), and a control unit () configured to control the powder doser () based on at least one of a pressure value and a volume flow value measured by the measuring unit () in such a manner that the at least one of the pressure value and the volume flow value measured by the measuring unit () is within a predetermined range.

Powder supply system, method of operating a powder supply system and apparatus for producing a three-dimensional work piece

The application relates to a device for producing three-dimensional workpieces, the device including: a structural surface designed to receive a molding compound; and an irradiation arrangement designed to selectively irradiate the molding compound on the structural surface with electromagnetic radiation, in order to produce a workpiece by means of generative layer construction, where the irradiation device comprises a plurality of irradiation units, the irradiation units being designed to irradiate an individual region of the structural surface respectively associated with the irradiation units, and where the beams emitted by the irradiation units respectively have a cross-sectional surface corresponding to between approx. 2% and approx. 170% of the surface of the respectively associated individual region. The application also relates to the use of such a device and to a method for producing three-dimensional workpieces by means of such a device.

Production of three-dimensional workpieces by means of a plurality of irradiation units

An unpacking system for use in an apparatus for producing three-dimensional work pieces by irradiating layers of a raw material powder electromagnetic or particle radiation comprises a supporting structure which is configured to support a building chamber arrangement. The building chamber arrangement comprises a building chamber accommodating a carrier, the carrier being configured to receive a three-dimensional work piece produced from a raw material powder by an additive layering process. A lowering mechanism of the unpacking system is configured to apply a driving force to the building chamber so as to lower the building chamber relative to the carrier until a three-dimensional work piece received on the carrier can be removed from the carrier.

Unpacking system for use in an apparatus for producing three dimensional work pieces

An unpacking device for use in an apparatus for producing a three-dimensional work piece by irradiating layers of a raw material powder with electromagnetic or particle radiation, the unpacking device comprises a holding device which is configured to hold a building chamber arrangement. The building chamber arrangement comprises a building chamber accommodating a carrier, wherein the carrier is configured to receive a three-dimensional work piece produced from a raw material powder by an additive layering process. An engagement unit of the unpacking device is configured to engage with the carrier of the building chamber arrangement. A moving mechanism is configured to cause a relative movement between the building chamber and the engagement unit with the carrier engaged therewith so as to allow a separation of the carrier with a three-dimensional work piece received thereon from the building chamber. Finally, the unpacking device comprises a raw material powder removal mechanism which is configured to cause at least one of a vibration and a rotation of the engagement unit with the carrier engaged therewith so as to remove residual raw material powder from the three-dimensional work piece received on the carrier.

Unpacking device allowing residual raw material powder removal

Growing community of inventors

Luebeck, Germany

Karsten Huebinger