Multimodal in situ inspection system integrating dimensional and structural inspection that can be applied in various DW applications including the printing of smart parts with embedded sensors.
Development and validation of physics-based thermal distortion prediction and compensation methods to mitigate distortion in build geometries when using metal powder-bed additive manufacturing processes.
The patterned disposition of materials has evolved from single-function image transfer to application of multi-material fabrication of functional structures and electronic devices. However, a lack of robust process monitoring for defects in the printed structures and devices has hindered the industrialization of this direct write (DW) technology.
Develop an in-line inspection system for the DW process to reduce time and cost, and add unique capabilities for novel design applications and robust fabrication. Explore multiple non-destructive inspection modalities to enable the identification and quantification of 3D topological defects in printed materials as well as any structural variation that can lead to functional defects in the final printed part.
Leverage GE’s extensive experience base in additive manufacturing and inspection technologies to develop the appropriate in-situ inspection system to monitor DW process from fluid deposition to final cure and (potentially) sinter. Specifically, GE will evaluate, down-select, and develop:
- 3D measurement of printed structures using optical metrology technology (structured light, confocal, focus divesity, etc) that has made significant advances for in-process applications
- Non-destructive inspection of the internal structure variations of printed materials using technologies such as transient thermography and digital X-ray. Structural-dependent functional properties such as electrical conductivity will be addressed
Other Project Participants
- RDECOM-ARDEC (Picatinny Arsenal)