Slm Solutions Group Ag

Nikon Slm Solutions Ag

Peter Koerner

Andreas Wiesner

Toni Adam Krol

Jan Wilkes

Bodo Haack

Daniel Brueck

Karsten Huebinger

André Hermann

Simon Mueller

Kaj Merten Berggreen

Jonas Mersch

Torsten Kuntoff

Ralf Frank

Bernd Mueller

Soenke Weiss

A powder application device () for use in a system () for producing a three-dimensional workpiece using a generative layering process comprises a spreading member (). The spreading member () is movable across a surface of a carrier () for depositing a raw material powder for producing a workpiece by a generative layering method onto the surface of the carrier (). Furthermore, the powder application device () comprises a powder entrainer () which is movable across a carrier plane (E) and which, in the region of a surface () facing the carrier plane (E), is provided with a surface profile (). The surface profile () comprises an entraining element () and a passage channel (). The entraining element () and the passage channel () are shaped and arranged in such a way that, with respect to the movement of the powder entrainer () across the carrier plane (E), powdery material deposited in front of the powder entrainer () on the carrier plane (E) is entrained by the entraining element () during a movement of the powder entrainer () across the carrier plane (E) in a first direction of movement (R), and is guided through the passage channel () during a movement of the powder entrainer () across the carrier plane (E) in a second direction of movement (R) opposite to the first direction of movement (R).

Powder application device, method for operating a powder application device, and system for producing a three-dimensional workpiece

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

Peter Koerner