Process and device for producing solid bodies by sequential layer buildup

US7285234B2 · kind B2 · utility

Assignee

• Daimlerchrysler AG · US

Inventors

• Rolf Pfeifer · Oberuhldingen, DE
• Jialin Shen · Bernstadt, DE
• Didier von Zeppelin · Ulm, DE

Key dates

• Filing date: Feb 18, 2004
• Grant date: Oct 23, 2007
• Expiry date: Mar 12, 2025

Classification

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

Abstract

Process for layer-wise production of a three dimensional body (generative rapid prototyping), in particular by 3D binder printer, including a multiple succession of the steps of depositing a powder particle layer, activating in defined areas an adhesive present on the powder particles and/or in the powder particle coating, as well as adhering the powder particles to each other and to the layer thereunder, wherein the powder particle layer is electrically discharged by ionized particles and brushed flat by means of an electrically insulated blade prior to activation of the adhesive material, and the invention further concerns a device adapted for application of thin powder particle layers, including at least one ionizing device.