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Controlling Defects in 3D Printing

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LEMONT, Ill., and PITTSBURGH, Feb. 26, 2019 — Researchers from Argonne National Laboratory and Carnegie Mellon University have identified the cause of defects in 3D printing, opening the way to better quality and better control of finished products. Argonne’s Advanced Photon Source (APS) was used to take superfast video and images of laser powder bed fusion (LPBF), a process in which lasers are used to create the product by scanning each layer of powder and fusing metal where it is needed. Researchers watched what happened as the laser moved across the metal powder bed to create each layer of the product. The APS experimental...Read full article

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