Additive manufacturing methods and systems

US12290987B2 · kind B2 · utility

Assignees

• Concept Laser, GmbH · DE
• GE Additive Germany GmbH · DE

Inventors

• Juergen Werner · Bruckmühl, DE
• Jan Michael Friese · Erlangen, DE
• Christian Wacker · Bamberg, DE
• Patrick Dueck · Weismain, DE
• Kai Hertel · Breitengüßbach, DE
• Benedikt Roidl · Gräfelfing, DE
• Dominic Graf · Weitramsdorf, DE
• Florian Bechmann · Lichtenfels, DE
• Johannes Stroessner · Schwarzenbach a.d.Saale, DE

Key dates

• Filing date: Feb 21, 2023
• Grant date: May 6, 2025
• Expiry date: Jul 7, 2043

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/25
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

Methods of additively manufacturing a three-dimensional object by one or more energy beams include selectively directing a first energy beam across a powder bed along a plurality of first hatching paths and a first contour path that defines a first outer contour portion and a first stitching portion, wherein the first outer contour portion at least partially defines a first edge portion of an outer edge of the three-dimensional object, and wherein the first edge portion is non-linear, and selectively directing a second energy beam across the powder bed along a plurality of second hatching paths and a second contour path that at least partially defines a second edge portion of the outer edge of the three-dimensional object, wherein the second edge portion is adjacent the first edge portion, and wherein the first stitching portion extends into the plurality of second hatching paths along a non-linear stitching path.