General Electric Company

Paul Moncelle

Andrew Philip Woodfield

Dale Robert Lombardo

Joshua L Miller

Thomas Froats Broderick

Michael Jay Brunck

William Terence Dingwell

Alberto Luna

William Lee Imhoff

William Terrence Dingwell

A method of reducing crack propagation in an airfoil includes: providing an airfoil having a root spaced apart from a tip, spaced-apart leading and trailing edges, a suction side extending from the leading edge to the trailing edge, and an opposed pressure side extending from the leading edge and the trailing edge, supporting the airfoil against bending loads; and burnishing the airfoil using a burnishing element, so as to create at least one burnished section of residual compressive stress, the at least one burnished section being located adjacent the leading edge and spaced from the leading edge by an offset distance selected so as to avoid deformation of the leading edge.

Method for increasing fatigue notch capability of airfoils

A metallic component is by at least one peripheral edge. The component includes at least one elongated treated zone having a length substantially greater than its width. This treated zone is spaced away from and disposed generally parallel to the peripheral edge of the component and the entire thickness of the component within the treated zone is in a state of residual compressive stress. Crack growth from the edge due to fatigue or damage is resisted.

Fatigue-resistant components and method therefor

Growing community of inventors

Cincinnati, OH, United States of America

Paul Moncelle