Slug for industrial ballistic tool
AssigneeOlin Corporation
InventorsPeter W. Robinson, Jack D. Dippold
Life of this patent
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Abstract
A frangible projectile for expelling from an industrial ballistic tool may be formed by a powder metallurgy process. A preferred embodiment of slug consists essentially of compacted and optionally sintered material and comprises up to 35% ferrotungsten in particulate form, up to 3% lubricant, and the balance iron in particulate form with inevitable impurities.
Claims21
A frangible projectile for expelling from an industrial ballistic tool, the projectile having a mass and comprising:
- a slug consisting essentially of compacted and sintered material effective to impart kinetic energy to deform a target consisting essentially of:
- up to 35 percent ferrotungsten in particulate form;
- up to 3 percent lubricant;
- and
- the balance iron in particulate form and inevitable impurities,
- wherein the slug is free of frangibility-enhancing bores and compartments.
A frangible projectile for expelling from an industrial ballistic tool, the projectile having a mass and comprising:
- a slug consisting essentially of compacted and sintered material effective to impart kinetic energy to deform a target comprising metal in particulate form, wherein when the slug is expelled from said tool at a muzzle velocity of 671 m/s (2200 fps) and normally impacted with a non-armor steel plate having a yield strength of about 310 MPa (45,000 psi) at a distance of 16 m from the muzzle, on average a largest residual piece of the slug represents less than 70% of the slug mass and at least 25% of the slug mass is represented by pieces which pass through a 0.084 cm (0.033 inch) sieve.
A frangible projectile for expelling from an industrial ballistic tool, the projectile having a mass and comprising:
- a compacted and sintered slug effective to impart kinetic energy to deform a target consisting essentially of:
- up to 35 percent ferrotungsten in particulate form;
- up to 3 percent lubricant;
- and
- the balance iron in particulate form and inevitable impurities, said iron comprising oxide-reduced iron;
- and
- a sleeve having an outer diameter and formed of a sleeve material effective to engage with rifling of said tool and having an inner diameter effective to integrally bond the sleeve to the slug so as to impart spin to the slug when fired from said tool.
Dependencies are inferred from the claim text.