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Study of the influence of mixing methods of thermoplastic slick components on its rheological propertie

Authors: Kolmykov E.I., Tverskoi M.V.
Published in issue: #4(81)/2023
DOI: 10.18698/2541-8009-2023-4-883


Category: Mechanical Engineering and Machine Science | Chapter: foundry

Keywords: MIM technology, slip, injection molding, metal powder, fluidity, mixing, metal mixture, titanium
Published: 06.05.2023

A granulometric analysis of a metal powder from an alloy of titanium VT6 has been carried out. A binder component based on wax for thermoplastic slurry (hereinafter slurry) of low pressure is considered. Several types of thermoplastic slurry with varying mixing sequences of components and temperature values have been proposed and prepared. The influence of temperature parameters and the sequence of mixing components on the rheological properties of the slip has been revealed. The fluidity of the finished thermoplastic slurry was visually assessed by forcing it through a press nozzle. For analysis, a titanium-based slurry developed in the laboratory of the Foundry Technologies Department of Bauman Moscow State Technical University.


References

[1] Tverskoy M.V., Khilkova A.A., Khilkov D.E. Study of particularities of metal powder mixtures injection molding. Politekhnicheskiy molodezhnyy zhurnal, 2018, no. 11 (28). (In Russ.). http://dx.doi.org/10.18698/2541-8009-2018-11-406

[2] Bazlov V.A., Mamuladze T.Z., Kharitonov K.N., Efimenko M.V., Golenkov O.I., Pronskikh A.A., Panchenko A.A., Pavlov V.V. Possibilities of injection molding of metal powders (MIM — metal injection molding) in mass production of medical products. Modern Problems of Science and Education. Surgery, 2020, no. 2, p. 64–68. URL: https://applied-research.ru/ru/article/view?id=13011 (accessed January 29, 2023).

[3] Polymer Technologies Inc. looks to the aerospace industry for new PIM applications. PIM International, 2013, vol. 7(1), pp. 45–51.

[4] Illarionov A.G., Popov A.A. Tekhnologicheskie i ekspluatatsionnye svoystva titanovykh splavov [Technological and operational properties of titanium alloys]. Yekaterinburg, Publishing House Ural. un-ta, 2014, 137 p. (In Russ.).

[5] Yakovlev A.L., Nochovnaya N.A., Putyrsky S.V., Krokhina V.A. Titanium polymer layered materials. Aviatsionnye materialy i tekhnologii, 2016, no. S2, pp. 56–62. (In Russ.). http://doi.org/10.18577/2071-9140-2016-0-S2-56-62

[6] Korotchenko A.Yu., Kovalevich E.V., Nuraliev N.F., Kutsy O.Ya. A device for studying of the free linear shrinkage of alloys. Liteynoe proizvodstvo, 2020, no. 11, pp. 16–18. (In Russ.).

[7] Korotchenko A.Yu., Khilkov D.E., Tverskoy M.V. New compositions of thermoplastic slurry and molds for their injection molding. Liteynoe proizvodstvo, 2022, no. 5, pp. 15–18. (In Russ.).

[8] Gülsah E., Bülent A., Özkan Gülsoy H. Injection molding of micro-porous titanium alloy with space holder technique. Rare Metals., 2011, no. 30, pp. 565–571. http://doi.org/10.1007/s12598-011-0430-2

[9] Kotomin S.V., Shabeko A.D., Frenkin E.I., Korotchenko A.Yu., Tverskoi M.V., Khilkov D.E. Rheology of PIM-feedstocks. Trudy Kol’skogo nauchnogo tsentra RAN, 2018, pp. 305–310. (In Russ.). http://doi.org/10.25702/KSC.2307-5252.2018.9.1.305-310

[10] Heaney D.F. Handbook of metal injection molding. Woodhead Publishing, 2012, 604 p.