Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)
- 2006.09a
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- Pages.518-519
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- 2006
Investigation of Influence of Pulse-periodical Laser Radiation Power on Stability of Liquid-metal Contacts between Powder Particles during Selective Laser Sintering
- Beljavin, K.E. (Belarusian State Research and Production Powder Metallurgy Concern) ;
- Minko, D.V. (Research Design and Technology Institute for Welding and Protective Coatings with Pilot Production) ;
- Bykov, R.P. (Research Design and Technology Institute for Welding and Protective Coatings with Pilot Production) ;
- Kuznechik, O.O. (Research Design and Technology Institute for Welding and Protective Coatings with Pilot Production)
- Published : 2006.09.24
Abstract
A connection between pulse-periodical laser radiation power and stability of liquid-metal contacts between powder particles during selective laser sintering (SLS) is determined based on analysis solving the problem of stability of liquid column in the gravity and capillary forces field. On the grounds of obtained relationships the optimization of pulse-periodical laser radiation power and SLS-process duration is realized, that allows to produce voluminous powder porous materials with pre-determined physical and mechanical properties and surface geometry. Results of metallographic investigations of powder porous materials of titanium powder produced with technological regimes calculated by means of obtained relationships are given in the work
Keywords
- titanium powder;
- Selective Laser Sintering (SLS);
- machine of powder laser stereolithography;
- contact neck