Fabrication and Performance Analysis of Environment Friendly Double Core Bullets for Small Arms

Hong, Jun-Hee; Jang, Tak-Soon; Song, Chang-Bin; Kang, Dae-Wha

doi:2011.14.3.345

J. KIMS Technol > Volume 14(3); 2011 > Article

Journal of the Korea Institute of Military Science and Technology 2011;14(3):345-352.
DOI: https://doi.org/10.9766/KIMST.2011.14.3.345

Fabrication and Performance Analysis of Environment Friendly Double Core Bullets for Small Arms

Jun-Hee Hong, Tak-Soon Jang, Chang-Bin Song, Dae-Wha Kang

¹
²
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2중 코어 구조의 소화기용 친환경 탄자 제조 및 특성 분석

홍준희, 장탁순, 송창빈, 강대화

¹충남대학교
²방위사업청
³공주대학교

Abstract

This paper focuses on the properties analysis of 9mm bullet dual structure core to substitute current lead core by environment-friendly combination of W-Cu-Ni system high density composite materials. So the four combination samples were made of dual core with the different center of gravity location backward or forward compare to that of lead type bullet, and we experimented about the performance of 9mm bullet dual structure core. In the experimental results, the outer shape of core of four environment friendly samples on the target maintain marginally, while the current lead core bullets are completely crushed after hitting the target. The penetration depth of environment friendly samples excel seven times to lead type bullet and the three out of four samples with forward adjusted center of gravity penetrate deep as twice as ones backward. The impact tolerance of all four samples satisfies military specification, however, more firing tests are required to improve reliability of scattering distribution.

Key Words: Bullet, The Center of Gravity, The Bullet Velocity, The Penetration Depth, The Impact Tolerance