초록 ▼

A substantially nonbonded composite/metallic gun barrel is disclosed. The gun barrel has a metallic liner and a composite casing disposed thereabout. Unlike composite/metallic gun barrels of the prior art, the embodiments of the present invention provide little if any bonding between the composite c

A substantially nonbonded composite/metallic gun barrel is disclosed. The gun barrel has a metallic liner and a composite casing disposed thereabout. Unlike composite/metallic gun barrels of the prior art, the embodiments of the present invention provide little if any bonding between the composite casing and the metallic liner so as to decrease the warping of the gun barrel caused by the differing thermal expansion coefficients of the composite material and the metallic liner. In accordance with one aspect of the invention, a short binding layer is used to hold the composite casing to the metallic liner adjacent the chamber which holds a cartridge to be fired. The short layer prevents rotation of the casing and the liner with respect to one another, while preventing little risk of warping. In accordance with another aspect of the invention, a holding pin is inserted in the gun barrel to prevent the metallic liner and the composite casing from rotating relative one another.

대표청구항 ▼

A gun barrel comprising: an elongated metallic liner having an exterior circumference; an elongated composite casing co-extensive in length with and disposed about the elongated metallic liner, the composite casing having an interior circumference; an interface disposed at the interior circumference

A gun barrel comprising: an elongated metallic liner having an exterior circumference; an elongated composite casing co-extensive in length with and disposed about the elongated metallic liner, the composite casing having an interior circumference; an interface disposed at the interior circumference of the composite casing and the exterior circumference of the metallic liner and extending along the length of the composite casing, and wherein the interface is characterized by the absence of bonding between the composite casing and the metallic liner for at least half of the length of the composite casing; and wherein the composite casing comprises graphite and epoxy, and the metallic liner is made of stainless steel.