Method for producing a part using a depostion technique

US8741194B1 · kind B1 · utility

Assignee

• VOXELJET AG · DE

Inventors

• Ingo Ederer · Geltendorf, DE
• Rainer Hochsmann · Genderkingen, DE

Key dates

• Filing date: Sep 25, 2000
• Grant date: Jun 3, 2014
• Expiry date: Sep 25, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/24893
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The invention relates to a method for producing a part using a deposition technique, especially a part in the form of a casting mold or a casting core. A layered composite is built up in layers, the individual layers each containing particulate material and binding material as well as optionally, a treatment agent. The layers maintain a predetermined porosity. The binding agent can be hardened especially with a fluid hardening agent. The layer composite is built up in the absence of the hardening agent. Once construction is complete, the layer composite is flooded with the fluid hardening agent using the residual porosity of the predetermined partial areas and in this way, is hardened.