Exposure strategy in multiple-beam am systems

US11914341B2 · kind B2 · utility

Assignee

• EOS GmbH Electro Optical Systems · DE

Inventors

• Martin Schade · Munich, DE
• Albert Fruth · Germering, DE
• Robert Achim Domröse · Germering, DE
• Maximilian Mittermüller · Munich, DE
• Michael Göth · Munich, DE
• Markus Kuchenbaur · Munich, DE
• Michael Kowal · Oak Park, US

Key dates

• Filing date: Mar 7, 2018
• Grant date: Feb 27, 2024
• Expiry date: Jun 8, 2040

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P80/40
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The invention relates to a computer-assisted method for generating a control data set for an additive layer manufacturing device. In a first step, a layer data set is accessed, wherein points are marked in the data model which correspond to an object cross-section and at which the bid-up material should be solidified. In a second step, the layer data set is modified in such a way that for at least a portion of the object cross-section, the number of beams required for solidifying the build-up material inside said portion is determined preferably automatically, according to quality specifications of the portion and/or a manufacturing time of the object. In a third step, the modified layer data set is provided as a control data set for the additive layer manufacturing device.