Share Email Print
cover

Proceedings Paper

The multichannel pyrometer of the spectral ratio for on-line monitoring in the powder bed additive technologies
Author(s): Y. N. Zavalov; A. V. Dubrov; P. S. Rodin; F. Kh. Mirzade; V. N. Glebov; A. M. Malutin; G. A. Dubrov
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Optical diagnostic methods were used to study the physical processes occurring on the surface of the melt in the technology of selective laser melting (SLM) of metallic powders. Independent registration of the fraction of reflected laser radiation and thermal radiation from several points of the surface of the melt were carried out simultaneously. This made it possible to distinguish changes in the surface relief and subsurface processes of heat and mass transfer during laser heating. It is shown that the frequency and amplitude characteristics of signals obtained by optical diagnostics make it possible to identify the moments of intensification of convective heat and mass transfer. The results of the research can be used to develop methods and tools for on-line monitoring and control of the SLM process.

Paper Details

Date Published: 24 May 2018
PDF: 6 pages
Proc. SPIE 10677, Unconventional Optical Imaging, 106772G (24 May 2018); doi: 10.1117/12.2307578
Show Author Affiliations
Y. N. Zavalov, Institute on Laser and Information Part Technologies of the Russian Academy of Sciences (Russian Federation)
A. V. Dubrov, Institute on Laser and Information Part Technologies of the Russian Academy of Sciences (Russian Federation)
P. S. Rodin, Institute on Laser and Information Part Technologies of the Russian Academy of Sciences (Russian Federation)
F. Kh. Mirzade, Institute on Laser and Information Part Technologies of the Russian Academy of Sciences (Russian Federation)
V. N. Glebov, Institute on Laser and Information Part Technologies of the Russian Academy of Sciences (Russian Federation)
A. M. Malutin, Institute on Laser and Information Part Technologies of the Russian Academy of Sciences (Russian Federation)
G. A. Dubrov, Institute on Laser and Information Part Technologies of the Russian Academy of Sciences (Russian Federation)


Published in SPIE Proceedings Vol. 10677:
Unconventional Optical Imaging
Corinne Fournier; Marc P. Georges; Gabriel Popescu, Editor(s)

© SPIE. Terms of Use
Back to Top