Comparison of dynamic tensile extrusion behaviour of WCu composites made by different processes

Leeju Park; Sanghyun Woo; Yerim Lee; Keunho Lee; Young Sun Yi

doi:10.1051/epjconf/201818303004

Proceedings

Open Access

EPJ Web of Conferences 183, 03004 (2018)
https://doi.org/10.1051/epjconf/201818303004

Comparison of dynamic tensile extrusion behaviour of WCu composites made by different processes

Leeju Park¹^,2^*, Sanghyun Woo¹^,2, Yerim Lee¹, Keunho Lee¹ and Young Sun Yi¹

¹ The 4th Research and Development Institute, Agency for Defence Development, 34186 Daejeon, Republic of Korea
² Weapon Systems Engineering, Korea University of Science and Technology, 34113 Daejeon, Republic of Korea

^* Corresponding author: ljparkr@add.re.kr

Published online: 7 September 2018

Abstract

Composites with 60~90% of tungsten are used in liners of some specialty shaped charges. The penetration is enhanced by a factor against copper for homogeneous steel target. Tungsten powder based shaped charge liners are also especially suitable for oil well completion. In this study, WCu composites manufactured by different process are used for testing of dynamic tensile extrusion (DTE) behaviour. One samples were made by copper infiltrated method. The other samples were manufactured by metal injection molding methods with reduced tungsten copper composite powder. DTE tests were carried out by launching the sphere samples (Dia. 7.62mm) to the conical extrusion die at a speed of ~375m/s. The DTE fragmentation behaviour of tungsten copper composites after soft-recovered were examined and compared with each other.

© The Authors, published by EDP Sciences, 2018

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