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Laboratory Tests of Selective Laser Melting of Simulants of Lunar Regolith with Various Granulometric Propertiesстатья
- Авторы: Tomilina T.M., Kim A.A., Lisov D.I., Lysenko A.M.
- Журнал: Cosmic Research (English translation of Kosimicheskie Issledovaniya)
- Том: 62
- Номер: 5
- Год издания: 2024
- Издательство: Pleiades Publishing, Inc.
- Местоположение издательства: New York, USA
- Первая страница: 495
- Последняя страница: 509
- DOI: 10.1134/S0010952524600781
- Аннотация: The paper presents the results of laboratory tests of selective laser melting (SLM) of powder com-positions of lunar regolith simulants from the terrestrial rocks of gabbro-diabase and labradorite, which havedifferent ranges of fractionality. It is shown that compositions with narrow ranges of fractionality of either 50–100 or 100–140 μm make it possible to produce the samples with rather good properties: relatively low poros-ity and rather good compliance with the requested geometric shape. Experimental dependences of the poros-ity of tested samples on the energy density of melting are obtained. For both cases of powder compositionsfrom gabbro-diabase with the narrow fractions, either 50–100 or 100–140 μm, the dependences on the energyare practically the same: with increasing energy density up to 20 J/mm3 and greater, the porosity approaches30–35%. On the other hand, experimental tests shown that SLM technology for a powder composition witha broad range of fractions, from 0 to 100 μm, does not allow testing samples with acceptable properties to beproduced—either with low porosity and with reasonable consistency with the specified geometry.
- Добавил в систему: Ким Андрей Александрович