United Technologies Corporation

Raytheon Technologies Corporation

Micah Beckman

David Masiukiewicz

Daniel Livchitz

Edward Marchitto

Osamuyimen A Oyegun

Thomas J Horn

John P Rizzo, Jr

Michael Parkin

Robert E Erickson

Joseph Rios

Kathleen Daudish

Thomas James Raymond

Osamuyimen Albert Oyegun

A method for assembling an airfoil includes pressing a blade body together with at least one of a blade sheath and a blade cover between a plunger and a die base to join the blade body to the blade sheath and/or the blade cover. The method can include transferring heat from the plunger and/or the die base to at least one of the blade body, the blade sheath and the blade cover to cure an adhesive.

Systems and methods for airfoil assembly

A part comprising a one or more removable wear indicators is provided. The part may be a stator segment comprising a plurality of airfoils. The stator segment may also comprise one or more mock airfoils at each end of the stator segment. Each of the mock airfoils may comprise an indicator configured to wear during a polishing process.

Integral part wear indicator system, method and apparatus

A tool comprising a plurality of wear indicators is provided. The tool may be made from a rapid prototyping process. The tool may be used in an abrasive processing operation. The tool may comprise one or more control elements, (e.g., control geometries, part interfaces, fixture interfaces and/or the like). These control elements may comprise indicators of tool wear. The indicators may be inspected physically (e.g., by touch) and/or visually.

Abrasive tool indicator system, method and apparatus

A method of removing material from an airfoil includes engaging a root of the airfoil within a root-securing fixture, engaging a tip of the airfoil within a tip-securing fixture, and removing material from the airfoil. The method further includes disengaging the tip of the airfoil from the tip-securing fixture to allow movement of the tip from a clamped state position to a free-state position. The method further includes reengaging the tip of the airfoil within the tip-securing fixture in the free-state position, and removing additional material from the airfoil.

Fixture system and method for securing an airfoil during material removal operations

A fixture assembly includes an inner diameter wall displaced from a main body by a first end wall with a convex surface and a second end wall with a concave surface. A method of machining a gas turbine engine component with an Abrasive Flow Media (AFM) process includes restricting a flow of media adjacent to an outer sidewall of an outer airfoil to be generally equal between each of a multiple of airfoils of the component.

Abrasive flow media fixture with end contour

A sleeve may be configured to secure an airfoil cluster for polishing. The sleeve may include a mock airfoil and a bypass flow path between the mock airfoil and an end wall of the sleeve. The sleeve may be positioned in an annular ring of sleeves in a polishing apparatus. The polishing apparatus may comprise an annular flow path for an abrasive fluid. The abrasive fluid may be flowed through the annular ring of sleeves in order to polish the airfoil cluster.

Systems and methods for polishing airfoils

An upper shield and a lower shield may be coupled to a rotor for polishing airfoils of the rotor in a vibratory bowl. The upper shield and the lower shield may include spars. The spars may correspond to leading edges and trailing edges of the airfoils. A media including abrasive particles may be flowed through the rotor in the vibratory bowl. The spars may protect the leading edges and trailing edges of the airfoils from excessive material removal by the abrasive particles.

System and method for polishing airfoils

Systems and methods for finish portions of parts for gas turbine engines are provided. More specifically, systems and methods for finishing flow elements (e.g., stator vanes and turbine blades) or gas turbine engines are provided. The systems and methods may employ grit blasting, fluidic machining, and/or super polishing. Moreover, the flow elements may be inspected and/or evaluated between the one or more processing steps.

Systems and methods for finishing flow elements

A fixture assembly includes a frame with a tip rail displaced from a main body. A method of polishing a gas turbine engine component includes restricting a flow of media adjacent to a tip of a component with an airfoil to be generally equal to a flow of media adjacent to a sidewall of the airfoil.

Vibratory mass media fixture with tip protector

A system, fixture and method for media finishing a cluster of airfoils are provided. The fixture may include a base having a first end and a second end, a receptacle disposed on the base and configured to receive the stator cluster, and at least one mock airfoil disposed at each of the first and second ends of the base in alignment with the airfoils of the cluster.

Drag finishing system, method and fixture for gas turbine engine airfoils

A tool for use during the abrasive flow polishing of an airfoil cluster in an abrasive flow machine is described. The tool may comprise a body and prongs extending from the body. Each prong of the tool may be configured to insert between an adjacent pair of airfoils of the airfoil cluster to create at least one channel therebetween. The channel may allow the flow of an abrasive media therethrough.

Tool for abrasive flow machining of airfoil clusters

A system and methods are provided for grinding a workpiece. In one embodiment, a method includes controlling rotation of a workpiece, wherein the workpiece is rotated relative to a first axis, and controlling grinding of the workpiece by a first grinding tool to shape the workpiece, wherein the first grinding tool is rotated relative to a second axis. The method may also include controlling grinding of the workpiece by the grinding tool and rotation of the workpiece to provide grinding of the workpiece with a generally constant surface footage.

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Middletown, CT, United States of America

Micah Beckman