3D Printing Industry | 5/3/2019 | Tia Vialva
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New Mexico additive manufacturing software developer Sigma Labs, has obtained third-party validation of its PrintRite3D platform in a study by U.S. defense agency DARPA.

The study discusses the validation process involved in producing complex metal parts of consistent quality. It was sponsored by DARPA’s Open Manufacturing Program and conducted in conjunction with aircraft engine manufacturer Honeywell Aerospace, which has been collaborating with Sigma labs since 2014.

Challenges - Metal - Manufacturing - Part - Quality

One of the current challenges of metal additive manufacturing is verifying part quality throughout the production of a part. Using trial-and-error, this is done at a significant cost to the manufacturer. To cut the time and materials wasted Sigma Labs produced, and continue to develop, the PrintRite3D platform.

PrintRite3D is a combination of one hardware module and two software modules for additive manufacturing quality assurance, and in process monitoring. When used together they collect and process data which users can analyse and inspect, in real-time, and implement corrections if necessary.

Quality - End - Use - Parts - Metal

For high quality end use parts, metal 3D printing processes require in- situ monitoring. After fabrication, these parts are also inspected for defects such as high porosity, incorrect density, residual stress, cracking and warping. As a result manufacturers won’t know if the part meets its design specification until the printing process has ceased.

PrintRite3D hardware includes three individual modules. The Sensorpak, a hardware module which includes a set of off-axis and on-axis in-process sensors, which collects real-time data on each individual layer during 3D printing. The data that Sensorpak collects is then fed into two software modules – INSPECT and CONTOUR.

INSPECT - Sensor - Data - Metrics - Metal

INSPECT uses the sensor data to establishes in-process metrics for each metal or alloy during the process, providing users with a part quality report.

CONTOUR is a layer-by-layer geometry measurement tool. It provides users with the ability to compare the part in-printing with the original digital CAD model during...
(Excerpt) Read more at: 3D Printing Industry
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