Generative production device comprising a measuring device

US10695983B2 · kind B2 · utility

Assignee

• APWORKS GmbH · DE

Inventors

• Franz Engel · Birkenfeld, DE
• Andreas Nick · Hersbruck, DE
• Wolfgang Rehm · Hergensweiler, DE
• Christian Weimer · Munich, DE

Key dates

• Filing date: May 23, 2016
• Grant date: Jun 30, 2020
• Expiry date: Oct 24, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/25
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A device for the layer-wise additive production of a complex three-dimensional component has a measuring mechanism for continuously monitoring quality indicators during the production of the component, wherein the measuring mechanism and a bed with a material powder are surrounded, at least in regions, by a processing cell filled with a protective gas atmosphere and the material powder of an uppermost layer can be melted in a locally limited manner in a melting zone by means of at least one laser. The measuring mechanism has the at least one laser and at least one optical sensor for the priority detection of the quality indicators in the region of the melting zone, in particular by means of Raman spectroscopy. Consequently, any construction errors in the component can be recognised, evaluated and, if necessary, corrected in a resource-saving manner without delay.