Additively manufactured interlocking casting core structure with ceramic shell

US11192172B2 · kind B2 · utility

Assignee

• General Electric Company · US

Inventors

• Xi Yang · Mason, US
• Michael Cole · Mason, US
• Michael C. Brown · Dresher, US
• Gregory Terrence Garay · West Chester, US
• Tingfan Pang · Sharonville, US
• Brian David Przeslawski · Monroe, US
• Douglas Gerard Konitzer · Sharonville, US

Key dates

• Filing date: Jun 28, 2017
• Grant date: Dec 7, 2021
• Expiry date: Dec 14, 2038

Classification

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

Abstract

A method of forming a cast component and a method of forming a casting mold. The method is performed by connecting at least one wax gate component to a ceramic core-shell mold. The ceramic core-shell mold includes at least a first core portion, a first shell portion, and a second shell portion, wherein the first shell portion is adapted to interface with at least the second shell portion to form at least one first cavity between the core portion and the first and second shell portions. The core-shell mold may be inspected and assembled prior to connection of the wax gate component. At least a portion of the ceramic core-shell mold and the wax gate component is coated with a second ceramic material. The wax gate component is then removed to form a second cavity in fluid communication with the first cavity.