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US 5,664,359 AGranted
Rifled weapon barrel and method of making the same
AssigneeRheinmetall Industrie GmbH
InventorsUdo Sabranski, Henning Von Seidlitz, Ralf-Joachim Herrmann
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Abstract
A weapon barrel includes a muzzle, a breech, a chamber at the breech and a rifling, formed of alternating lands and grooves, extending along an interior of the weapon barrel. The lands have a hardened surface to a depth of 0.3 to 0.5 mm. The hardened surface extends along a barrel length portion which includes the muzzle.
Claims5
A weapon barrel comprising
- (a) a muzzle;
- (b) a breech;
- (c) a chamber at said breech;
- and
- (d) a rifling, formed of alternating lands and grooves, extending along an interior of said weapon barrel;
- said lands having a hardened surface to a depth of 0.3 to 0.5 mm;
- said hardened surface having a hardness of at least 650 on the Vickers scale and extending along a length portion of said barrel;
- said length portion including said muzzle.
5 more elements
A method of providing lands of a weapon barrel rifling with a hardened surface along a barrel length portion including a muzzle, comprising the steps of
- (a) directing a laser beam to said lands from the interior of the barrel;
- and
- (b) hardening the surface of the lands to a depth of 0.3 to 0.5 mm by the laser beam.
Dependencies are inferred from the claim text.