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http://dx.doi.org/10.5762/KAIS.2020.21.5.615

A Study of Frangibility of 9MM Bullet Related to Material Composition and Sinter Condition  

Kim, Bo-Ram (Defense Agency for Technology and Quality)
Seo, Jung-Hwa (Defense Agency for Technology and Quality)
Jung, Hee-Chur (Defense Agency for Technology and Quality)
Kim, Kyu-Young (Defense Agency for Technology and Quality)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.21, no.5, 2020 , pp. 615-622 More about this Journal
Abstract
Frangible bullets, which are shredded after impact on a target, reduce the possibility of both ricochet and unexpected injury in shooting training and in mission acts in dams, nuclear power plants, and cultural properties. Reducing the levels of hazardous materials in shooting ranges, such as lead, has become an important agenda for the government and environmental groups. In this study, the shape of a frangible bullet was designed for efficient shredding, and the safety and reliability were confirmed by actual firing under different process conditions. In addition, the physical characteristics, such as compaction pressure, density, and frangibility of each process, were compared by analyzing the microstructure of the sintered frangible bullet. The experiment revealed the smallest fragmentation after impact on the target under the following conditions: Cu-Sn 85:15; sintering temperature, 600℃; sintering time, one hour. Further development of the process conditions and experimental methods will contribute to the performance and environmental improvement of a frangible bullet.
Keywords
Frangible Bullet; Eco-Friendly Bullet; Shredded Bullet; Anti-Ricochet; Lead Free Bullet;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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1 M. H. Kim, B. C. Shon. "Study on the improving thermal and mechanical properties of eco-friendly materials used for training ammunition", Journal of the Korea Academia-Industrial cooperation Society, Vol.19, No.5, pp.557-562, 2018 DOI: https://doi.org/10.5762/KAIS.2018.19.5.557   DOI
2 J. H. Hong, T. S. Jang, C. B. Song, B. I. Kim, "Design and performance analysis of environment", Journal of the Korea Institute of Military Science and Technology, Vol.14, No.2, pp.264-270, Apr. 2011   DOI
3 Editorial department. "Poongsan institute of technology to open a new future of precision ammunition", Defence and Technology (365), pp.32-41, Jul. 2009
4 Anish, Upadhyaya, Guneet Sethi. "Effect of heating mode on the densification and microstructural homogenization response of premixed bronze", Scripata Materialia, Vol.56, pp.469-472, 2007   DOI
5 S. Furtauer, D. Li, D. Cupid, H, Flandorfer. "The Cu-Sn phase diagram, Part I : New experimental results", Intermetallic, Vol.34, pp.142-147, 2013   DOI
6 Adnan, S. Jabur. "Effect of powder metallurgy conditions on the properties of porous bronze", Powder Technology, Vol.237, pp.477-483, 2013   DOI