Method and device for generating control data for an additive manufacturing device

US11906945B2 · kind B2 · utility

Assignee

• EOS GmbH Electro Optical Systems · DE

Inventors

• Thomas Mattes · Germering, DE
• Peter Holfelder · Neufahrn bei Freising, DE
• Anoush Aghajani-Talesh · Germering, DE

Key dates

• Filing date: Apr 23, 2019
• Grant date: Feb 20, 2024
• Expiry date: Mar 10, 2040

Classification

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

Abstract

A method and device for generating control data for an additive manufacturing device are described, wherein build-up material is built up and selectively solidified. Irradiating the build-up material on a build field with at least one energy beam occurs An impingement surface of the energy beam is moved on the build field in order to melt the build-up material in a target area in and around the impingement surface. For generating the control data, optimization criteria and/or secondary and/or boundary conditions relating to a local target temperature distribution in the target area of the build-up material are defined so that melting of the build-up material is effected as heat conduction welding. Based on this, an optimized intensity profile of the energy beam is determined, which is substantially non-rotationally symmetric at the impingement surface on the build field.