Device for the additive production of three-dimensional components

US11179806B2 · kind B2 · utility

Assignee

• Concept Laser, GmbH · DE

Inventors

• Frank Herzog · Lichtenfels, DE
• Florian Bechmann · Lichtenfels, DE
• Tobias Bokkes · Untersiemau, DE
• Fabian Zeulner · Lichtenfels, DE

Key dates

• Filing date: Jan 12, 2016
• Grant date: Nov 23, 2021
• Expiry date: Dec 18, 2037

Classification

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

Abstract

Device for production of three-dimensional components, namely a laser melting device or laser sintering device, in which a component is produced by successive solidifying of individual layers made from solidifiable construction material, by radiation, through melting of the construction material, wherein the dimensions and/or temperature of the melt area generated by a point-shaped or line-shaped energy input can be captured by a sensor device of a process monitoring system, and sensor values for evaluation of a component quality can by deduced therefrom, wherein the radiation created by the melt area and used for the generation of the sensor values passes through the scanner used for the melt energy input, and guided to the sensor device of the process monitoring system, wherein an optical focus tracking device is arranged in the radiation path used for generation of the sensor values between the scanner and the sensor device.