Real-time process monitoring and closed-loop control on laser power via a customized laser powder bed fusion platform

• Published in: Additive manufacturing Vol. 66; p. 103449
• Main Authors: Wang, Rongxuan, Standfield, Benjamin, Dou, Chaoran, Law, Andrew C., Kong, Zhenyu James
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 25.03.2023
• Subjects: 3D scanning; Closed-loop control; Laser powder bed fusion; Process monitoring; Quality control; Process monitoring; Laser powder bed fusion; L-PBF; 3D scanning; Quality control; TEI; PID; LDR; FOV; ROI; Closed-loop control

Additive manufacturing (AM) is one of the most effective ways to fabricate parts with complex geometries using various materials. However, AM also suffers from printing quality issues resulting from the defects such as over-melt, lack of fusion, swelling, etc. One of the root causes of those issues...