Device for the additive production of three-dimensional components

US12251777B2 · 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: Oct 29, 2021
• Grant date: Mar 18, 2025
• Expiry date: Apr 16, 2043

Classification

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

Abstract

A process monitoring system for an additive manufacturing apparatus includes a scanner, a sensor device, and an optical focus-tracking device. The scanner includes an optical adjustment device that directs a melting beam emitted by a laser melting device onto a construction plane to generate a melting section of the construction plane. The sensor device may detect reflected radiation from the melting section and generate sensor data indicative of a size, shape, and/or temperature corresponding to the melting section. The optical focus-tracking device includes a focusing lens located between the scanner and the sensor device. The focusing lens may be actuatable by electronic machine data derived from the sensor data to impart a first focus adjustment with respect to the reflected radiation detected by the sensor followed by a second focus adjustment with respect to the melting beam directed by the optical adjustment device.