Deep Learning Makes X-Ray CT Inspection of 3-D-Printed Parts Faster, More Accurate

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U.S. Department of Energy

October 18, 2022 | Originally published by Oak Ridge National Laboratory on October 14, 2022

A new deep-learning framework developed at the Department of Energy’s (DOE’s) Oak Ridge National Laboratory (ORNL) is speeding up the process of inspecting additively manufactured metal parts using X-ray computed tomography, or CT, while increasing the accuracy of the results. The reduced costs for time, labor, maintenance, and energy are expected to accelerate expansion of additive manufacturing, or 3-D printing.

“The scan speed reduces costs significantly,” said ORNL lead researcher Amir Ziabari. “And the quality is higher, so the post-processing analysis becomes much simpler.”

The framework is already being incorporated into software used by commercial partner ZEISS within its machines at DOE’s Manufacturing Demonstration Facility at ORNL, where companies hone 3-D-printing methods.

ORNL researchers had previously developed technology that can analyze the quality of a part while it is being printed. Adding a high level of imaging accuracy after printing provides an additional level of trust in additive manufacturing while potentially increasing production.

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