Optical System for On-Line Monitoring and Temperature Control in Selective Laser Melting Technology
A monitoring system is developed to visualize and to control the process of Selective Laser Melting (SLM) of metallic powder. The system is integrated with industrial PHENIX PM-100 machine. Visualization is carried out using LED illumination and CCD-camera; a home developed pyrometer is applied for monitoring of thermal phenomena in the zone of laser impact. Deviation of temperature from its optimal value is chosen as a criterion for the express method of quality control.
Yuri Chugui, Yongsheng Gao, Kuang-Chao Fan, Roald Taymanov and Ksenia Sapozhnikova
M. Doubenskaia et al., "Optical System for On-Line Monitoring and Temperature Control in Selective Laser Melting Technology", Key Engineering Materials, Vol. 437, pp. 458-461, 2010