The Boeing Company
Real time inspection and correction techniques for direct writing systems

Abstract:

A real time inspection and correction system and method for additive manufacturing process is described. The method may include operating a direct writing device configured to deposit material on a substrate through a tip to provide a portion of a product according to initial parameter values, receiving a hyperspectral image frame including a plurality of spectral images of the deposited material, processing the received hyperspectral image frame to determine a characteristic of the deposited material comparing the determined characteristic with a target characteristic determining at least one corrective parameter value to conform the determined characteristic to the target characteristic updating at least one of the initial parameter values with the corrective parameter values, and operating the direct writing device to deposit additional material on the substrate according to the corrective parameter value.