Minimization of chemical vapor infiltration tooling hole length through windows

US11993548B2 · kind B2 · utility

Assignee

• RTX CORPORATION · US

Inventors

• Alyson T. Burdette · Gilbertsville, US
• Jon E. Sobanski · Glastonbury, US
• Kenneth Petroski · Anaheim, US
• Ying She · Town of East Hartford, US
• Kathryn S. Read · Marlborough, US

Key dates

• Filing date: Sep 30, 2022
• Grant date: May 28, 2024
• Expiry date: Sep 30, 2042

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2235/614
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A tooling assembly suitable for use in infiltrating a fibrous preform comprises an outer tooling fixture with a plurality of outer sidewalls defining an inner volume, each of the plurality of outer sidewalls having an outer wall thickness, and a window extending through the outer wall thickness of at least one outer sidewall of the plurality of sidewalls. The tooling assembly further comprises an inner tooling fixture positioned within the inner volume of the outer tooling fixture, the inner tooling having a plurality of inner sidewalls, each of the plurality of inner sidewalls having an inner wall thickness, and a plurality of holes extending through the inner wall thickness of at least one inner sidewall of the plurality of inner sidewalls. The at least one outer sidewall is positioned adjacent the at least one inner sidewall such that the window overlaps with at least a subset of the plurality of holes in the at least one inner sidewall.