Optimization of Production Process of Frangible Bullets Based on Bismuth Powder

Authors

  • Minh Van Do Faculty of Weapons, Le Quy Don Technical University, Hanoi, Vietnam
  • Son Xuan Bui Le Quy Don Technical University, Hanoi, Vietnam
  • Jan Komenda Faculty of Military Technology, University of Defence in Brno, Czech Republic
  • Roman Vítek Faculty of Military Technology, University of Defence in Brno, Czech Republic
  • Pavel Skalický Faculty of Military Technology, University of Defence in Brno, Czech Republic

DOI:

https://doi.org/10.3849/aimt.01224

Keywords:

bismuth, frangible bullet, green strength, green density, powder metallurgy, pressing force, pressing velocity

Abstract

The article deals with the pressing process of the samples from bismuth powder, which were used in place of the bullet in order to optimize the frangible bullets manufacturing process. Cylindrical samples with a diameter of 9 mm were compacted by cold pressing in a cylindrical rigid die without sintering. Various pressing conditions (the changing of pressing force, pressing velocity and dwell time) were applied for compacting the samples. After compaction, the axial strength of the samples was tested to determine the optimal manufacturing process of the frangible bullet based on the bismuth powders.

Author Biography

  • Son Xuan Bui, Le Quy Don Technical University, Hanoi, Vietnam

    Complete PhD thesis at department of weapons and ammunition-university of defense in Brno-Czech Republic in 2017.

    Work at department of munitions, faculty of weapons, Le Quy Don technical university in Hanoi, Vietnam.

References

KOMENDA, J. and RYDLO, M. Frangible Ammunition [study] (in Czech). Prague: Forensic Institute, 2011.

MULLINS, J.F. Frangible Ammunition: the New Wave in Firearms Ammunition. Boulder: Paladin Press, 2001. 192 p. ISBN 1-58160-267-7.

RYDLO, M. Ballistic Characteristics of Frangible Firearms Ammunition [PhD Thesis] (in Czech). Brno: University of Defence, 2010. 148 p.

BROWN, J.R. Foseco Ferrous Foundryman’s Handbook. Boston: Butterworth Heinemann, 2000. 384 p. ISBN 978-0-7506-4284-2.

PROUDIAN, M-C.P. and MERCHANT, H.D. Sintering of Bismuth Powder. Journal of the Less Common Metals, 1979, vol. 65, no. 2, p. 175-180. https://doi.org/10.1016/0022-5088(79)90107-3.

ASM INTERNATIONAL HANDBOOK COMMITTEE. ASM Handbook: Volume 07-Powder Metal Technologies and Applications. Materials Park: ASM International, 1998. 1147 p. ISBN 978-0-87170-387-3.

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Published

20-06-2019

Issue

Section

Research Paper

Categories

How to Cite

Do, M. V., Bui, S. X., Komenda, J., Vítek, R., & Skalický, P. (2019). Optimization of Production Process of Frangible Bullets Based on Bismuth Powder. Advances in Military Technology, 14(2), 189-196. https://doi.org/10.3849/aimt.01224

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