Layer construction method and layer construction device for additively manufacturing at least one component region of a component, and computer program product and storage medium

US12337387B2 · kind B2 · utility

Assignee

• MTU Aero Engines AG · DE

Inventors

• Katrin Friedberger · Odelzhausen, DE
• Sebastian Rott · Munich, DE
• Steffen Schlothauer · Markt Indersdorf, DE
• Wolfgang Nietsch · Odelzhausen, DE

Key dates

• Filing date: Jul 13, 2020
• Grant date: Jun 24, 2025
• Expiry date: Sep 12, 2042

Classification

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

Abstract

The layer construction method comprises at least the following steps: a) applying at least one powder layer of a material to at least one construction and joining zone of at least one movable construction platform; b) locally solidifying the material to form a component layer, wherein the material is selectively scanned along scan lines by at least one energy beam and fused; c) lowering the construction platform layer by layer by a predefined layer thickness; and d) repeating the steps a) to c) until the component region is complete.In step b), a distance hs between at least two central lines of neighboring scan lines in at least one component layer is adjusted in accordance with Formula I 0.85≤bsmin/hs≤1.00  (I) wherein bsmin represents a minimum melt pool width of the scan lines.