Image-based defect detections in additive manufacturing

US12159390B2 · kind B2 · utility

Assignee

• Siemens Industry Software Ltd. · US

Inventors

• Gaurav Ameta · Pages Corner, US
• Suraj Ravi Musuvathy · Glenmont, US
• Elena Arvanitis · Somerville, US
• David Madeley · Louth, GB
• Omar Fergani · Berlin, DE
• Tom van 't Erve · Enschede, NL
• Livio Dalloro · Plainsboro, US

Key dates

• Filing date: Jul 25, 2019
• Grant date: Dec 3, 2024
• Expiry date: Jul 1, 2040

Classification

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

Abstract

A computing system may include an access engine and a defect detection engine. The access engine may be configured to access a slice contour of a given layer of a 3-dimensional (3D) object designed for manufacture through an additive manufacturing process and obtain hatch tracking for the slice contour, the hatch tracking representative of an energy path to melt metal powder for constructing the given layer through the additive manufacturing process. The defect detection engine may be configured to construct, from the slice contour, an as-built image for the given layer by rendering the hatch tracking in the slice contour; construct, from the slice contour, an idealized image for the given layer; and identify defects in the given layer via image analysis between the as-built image and the idealized image.