United Technologies Corporation

Joseph Bak

Foster Philip Lamm

John Henry Vontell, Sr

James Whitton

Gordon Miller Reed

Stanley J Funk

Kenneth M Boucher

James F Dolan

Christopher Patrick Jordan

William A Nehez, Jr

A method and material,for blocking a laser beam L during laser machining is disclosed. The material comprises a thermoplastic polymer. Various details are developed which promote filling and removing the blocking material from a component,. In one detailed embodiment, the thermoplastic polymer is formed of only carbon and hydrogen and forms harmless effluent during burnout of the material.

Method and material for processing a component for laser machining

A method for disposing laser blocking material,on the interior of an airfoil,, such as a rotor blade or stator vane, includes shear thinning the material. Various steps are developed which promote decreases in viscosity of the blocking material. In one detailed embodiment, the material is passed through an injection molding machine,to provide shear thinning.

Method for disposing a laser blocking material on the interior of an airfoil

A fixture 56 for disposing laser blocking material 52 on the interior of an airfoil 10 is disclosed. Various construction details are developed which allow for the repetitive disposition of the laser blocking material in one airfoil after another. In one embodiment, the fixture includes a sprue plate 62 and locating block 126 which are spanwisely spaced and engage the ends 14, 18 of the airfoil.

Fixture for disposing a laser blocking material in an airfoil

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Eastford, CT, United States of America

Joseph Bak