Device and method for generative production

US9067360B2 · kind B2 · utility

Assignee

• BEGO MEDICAL GMBH · DE

Inventors

• Ralf Wehning · Tarmstedt, DE
• Carsten Vagt · Oyten, DE
• Ingo Uckelmann · Bremen, DE
• Sascha Gärtner · Bremen, DE

Key dates

• Filing date: Aug 25, 2010
• Grant date: Jun 30, 2015
• Expiry date: Mar 7, 2031

Classification

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

Abstract

The invention relates to a process for producing products having a specific geometry, in particular dental prostheses or auxiliary dental parts, comprising the steps of producing a plurality of products on the surface of a substrate plate by selective curing, in particular by selective sintering or melting, wherein the material is applied in successive layers, one or a plurality of predetermined regions are selectively cured by means of high-energy radiation and joined to one or a plurality of regions of the subjacent layer after each application of a layer, wherein the predetermined regions are predetermined according to a cross-sectional geometry of the product in the respective layer. According to the invention, a substrate plate is provided which is subdivided into a first substrate plate segment and at least one further substrate plate segment that are detachably joined to each other or to a base carrier, a first product is produced on the first substrate plate segment by applying successive layers of material onto the first substrate plate segment and selectively curing predetermined regions of each applied layer of material after it has been applied, and at least one further…