Power beam welded cavity-back titanium hollow fan blade

US10502064B2 · kind B2 · utility

Assignee

• UNITED TECHNOLOGIES CORPORATION · US

Inventors

• Daniel A. Bales · Avon, US
• Dmitri Novikov · Avon, US
• Robert C. Dolan · Coventry, US
• Kenneth A. Frisk · Town of West Hartford, US
• Steven T. Gordon · Glastonbury, US
• William R. Graves · Amston, US
• Eric W. Malmborg · Amston, US
• Francis B. Parisi · West Suffield, US
• Randy P. Salva · Baltic, US
• Michael A. Weisse · Tolland, US
• Russell A. Beers · Manchester, US
• Xuedong Zhou · Glastonbury, US
• Christopher Treese · Town of West Hartford, US
• Tri Nguyen · Garden Grove, US

Key dates

• Filing date: Aug 7, 2017
• Grant date: Dec 10, 2019
• Expiry date: Feb 16, 2038

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T50/60
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

An airfoil including an airfoil body, a recessed portion of a first depth in a first side of the airfoil body, the recessed portion including a plurality of pockets of a second depth located within the recessed portion and ribs of the first depth located between the pockets, a cover configured to fit into the recessed portion such that an interior surface of the cover engages the ribs and an exterior surface of the cover is about flush with an exterior surface of the first side of the airfoil body, and a high energy beam weld configuration extending through the cover and into the ribs and positioned to attach the cover to the ribs.