A method is proposed for obtaining composite micropowders. The technology includes the atomization of liquid metal by a gas jet and modification of the micropowder in a planetary mixer in the presence of carbon nanopowder. The particles of the composite micropowders produced by this method are close to spherical in shape. The fact that some parts of the particles’ surface are covered with graphite and some are not shows that it might be possible to obtain a sintered product which has adequate strength and a structure that contains carbon impregnations. The proposed technology makes it possible to produce a wide range of composite powders suitable for use in selective laser sintering.
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F. L. Amorim, A. Lohrenge, V. Neubert, et al., “Selective laser sintering of Mo–CuNi composite to be used as EDM electrode,” Rapid Prototyp. J., 20, No. 1, 59–68 (2014).
D. Zhang, Q. Cai, J. Liu, et al., “Microstructural evolvement and formation of selective laser melting W–Ni–Cu composite powder,” Int. J. Adv. Manuf. Technol., 67, 2233–2242 (2013).
W. Wang, Y.-X. Liu, and J. Y. H. Fuh, “Effect of SLS process parameters on sintering quality for composite Al2O3/ ZrO2/SiO2,” Dongbei Daxue Xuebao – J. North. Univ., 34, No. 3, 417–420 (2013).
Y. Shi, D. Cheng, and S. Huang, “Al2O3/SiO2 composite ceramic parts by selective laser sintering,” Huazhong Keji Daxue Xuebao (Ziran Kexue Ban) – J. Huazhong Univ. Sci. Technol. (nat. sci. ed.), 35, No. 11, 20–23 (2007).
J. Deckers, J. P. Kruth, L. Cardon, et al., “Densification and geometrical assessments of alumina parts produced through indirect selective laser sintering of alumina-polystyrene composite powder,” Strojniski Vest. – J. Mech. Eng., 59, No. 11, 646–661 (2013).
G. Berti, L. D’Angelo, A. Gatto, and L. Iuliano, “Mechanical crystallization of Pa–Al2O3 composites obtained by selective laser sintering,” Rapid Prototyp. J., 16, No. 2, 124–129 (2010).
J. Liu, “Experimental research on fabrication of iron based alloy and nano-Al2O3 powder parts by laser sintering,” 21st Ann. Int. Solid Freeform Fabrication Symp., Austin, TX, U.S., Guangdong: School of Mechanical and Electrical Engineering, Shenzhen Polytechnic, Shenzhen (2010), pp. 415–421.
J. Maxwell, R. Krishnan, and S. Haridas, “High pressure, convectively-enhanced laser chemical vapor deposition of titanium,” Proc. 8th Int. Solid Freeform Fabrication Symp., Austin, TX, U.S., Univ. of Texas, Austin (1997), pp. 497–504.
A. Kar, M. N. Azer, and J. Mazumder, “Three-dimensional transient mass transfer model for laser chemical vapor deposition of titanium on stationary finite slabs,” J. Appl. Phys., 69, 757–766 (1991).
O. Conde, A. Kar, and J. Mazumder, “Laser chemical vapor deposition of TiN dot: a comparison of theoretical and experimental results,” J. Appl. Phys., 72, 754–761 (1992).
D. L. Bourell, H. L. Marcus, J. W. Barlow, and J. J. Beaman, “Selective laser sintering of metals and ceramics,” Int. J. Powder Met., 28, No. 4, 369–381 (1992).
W. L. Weiss and D. I. Bourell, “Selective laser sintering of intermetallics,” Metall. Trans. A, 24A, 757–759 (1993).
D. M. Gureev, A. V. Kamashev, A. L. Petrov, and I. V. Shishkovskii, “Energy properties of structures formed by the selective laser sintering of powder composites based on nickel, lanthanum, and bronze,” Persp. Mater., No. 2, 45–48 (2000).
I. V. Shishkovskii, D. M. Gureev, and A. L. Petrov, “Formation of bio-compatible intermetallide phases in the laser sintering of powders of CBC cps,” Izv. Ross. Akad. Nauk, Ser. Fiz., 63, No. 10, 2077–2081 (1999).
D. M. Gureev, O. G. Emelina, L. V. Zhuravel, et al., “Structure and properties of intermetallide phases synthesized by selective laser sintering. Part I. x-Ray phase analysis,” Fiz. Met. Metalloved., 93, No. 2, 80–84 (2002).
Yu. I. Drutyunov, L. V. Zhuravel, A. V. Pokoev, and I. V. Shishkovskii, “Structure and properties of intermetallide phases synthesized by selective laser sintering. Part II. Microstructure and corrosion properties,” ibid., 85–88.
E. V. Safonov, K. A. Bromer, A. O. Shul’ts, et al., Patent for Useful Model No. 110312 RF, IPC B22F9/12. “Unit, etc. for the atomization of liquid metals,” subm. 03.29.2011, publ. 11.20.2011.
P. A. Lykov, V. E. Roshchin, and E. I. Vorob’ev, “Effect of process parameters in the atomization of metallic melts on the granulometric composition of the powder and the form of the particles of the powder,” Izv. Vyssh. Uchebn. Zaved. Cher. Met., No. 6, 21–23 (2012).
P. A. Lykov, E. V. Safonov, and A. O. Shults, “Mechanism of formation of powder particles in the atomization of melts of different metals,” Metallurg, No. 3, 84–87 (2013).
A. Laohaprapanon, P. Jeamwatthnachai, M. Wongcumchang, et al., “Optimal scanning condition of selective laser melting processes with stainless steel 316L powder,” Adv. Mater. Res., 341/342, 816–820.
Translated from Metallurg, No. 9, pp. 98–101, September, 2015.
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Lykov, P.A., Sapozhnikov, S.B., Shulev, I.S. et al. Composite Micropowders for Selective Laser Sintering. Metallurgist 59, 851–855 (2016). https://doi.org/10.1007/s11015-016-0183-0
- atomization of liquid metals
- composite material
- selective laser sintering