Raytheon Technologies Corporation

Rtx Corporation

Rebecca L Runkle

Sergei F Burlatsky

Jesse R Boyer

David Ulrich Furrer

David W Morganson

Christopher F O'Neill

Amit Surana

Thomas Anthony Rebbecchi

Anthony Patrick Ventura

Michael Walter Bennett

Eklou E Hiheglo

A method of fabricating process-equivalent test specimens to an additively manufactured component includes generating a processing history model of a component, dividing the component into regions based on input data variations in processing history, wherein each region is characterized by an identified range of input data, determining additive manufacturing processing parameters needed to additively manufacture one or more test specimens that each mimic the processing history in one of the regions, and fabricating the one or more test specimens using the processing parameters determined.

Fabrication of process-equivalent test specimens of additively manufactured components

A powder processing machine includes a work bed, a powder deposition device operable to deposit powder in the work bed, at least one energy beam device operable to emit an energy beam with a variable beam power and direct the energy beam onto the work bed with a variable beam scan rate to melt and fuse regions of the powder, and a controller operable to dynamically control at least one of the beam power or the beam scan rate to change how the powder melts and fuses. The controller is configured to determine whether an instant set of process parameters falls within a defect condition or a non-defect condition and adjust at least one of the beam power or the beam scan rate responsive to the defect condition such that the instant set of process parameters falls within the non-defect condition.

Control for powder fusion

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Manchester, CT, United States of America

Rebecca L Runkle