Tungsten heavy alloy for penetrating splinter shell and forming method thereof
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United States of America Patent
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Dec 7, 2004
Grant Date -
Feb 19, 2004
app pub date -
Jan 17, 2003
filing date -
Jul 13, 2002
priority date (Note) -
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Abstract
Disclosed are a tungsten material for a penetrating splinter shell and forming method thereof enabling a penetrator to perforate a hard target on high-speed impact as well as having the following splinter cause a severe damage on an inner component by changing a breakage characteristic of the material into brittle fracture from ductile fracture in a manner that a mechanical characteristic of the material is adjusted by controlling a sintering condition and a composition ratio of a tungsten heavy alloy material having Mo added thereto. The present invention includes the steps of mixing 90.about.95 wt % W powder, 3.0.about.8.0 wt % Mo powder, 0.5.about.3.0 wt % Ni powder, and 1.0.about.4.0 wt % Fe powder with each other, molding the mixed powders, and sintering the molded powders.
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