Unpacking device allowing residual raw material powder removal

US10543530B2 · kind B2 · utility

Assignee

• SLM SOLUTIONS GROUP AG · DE

Inventors

• André Hermann · Wulfen, DE
• Toni Adam Krol · Stade, DE
• Andreas Wiesner · Hof Perlberg, DE
• Jan Wilkes · Stade, DE
• Bodo Haack · Stade, DE
• Karsten Huebinger · Hof Perlberg, DE
• Peter Koerner · Stade, DE
• Simon Mueller · Stade, DE
• Kaj Merten Berggreen · Stade, DE
• Jonas Mersch · Stade, DE

Key dates

• Filing date: Nov 13, 2016
• Grant date: Jan 28, 2020
• Expiry date: Aug 24, 2037

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/25
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

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…