United Technologies Corporation

Richard Alan Stone

John Joseph Marcin

Dilip M Shah

Marc R Sauerhoefer

Raymond Paul Langevin

David Henry Abbott

James Peter Aduskevich

Justin Andreas Neutra

Dorothea Nadette Carraway

A containerless method of producing a crack free metallic article of near-net shape includes melting a filler material into a metallic substrate or seed under conditions chosen to preclude cracking. In a preferred embodiment of the invention, a laser beam is operated at a relatively low power density and at a relatively large beam diameter at the substrate surface for an extended length of time to produce a molten pool with a low aspect ratio. Near-net shape is achieved by applying the process in a closed-loop, multi-axis material deposition system.

Crack free metallic articles

A filler material is melted into a metallic substrate having a defect under conditions chosen to preclude cracking. In a preferred embodiment of the invention, a laser beam is operated at a relatively low power density and at a relatively large diameter for an extended length of time to produce a molten pool with a low aspect ratio.

Method of repairing metallic articles by energy beam deposition with

Containerless method of producing crack free metallic articles by energy

Growing community of inventors

Stafford Springs, CT, United States of America

Richard Alan Stone