PERFORATING PROJECTILE WITH HARD CORE AND DUCTILE GUIDE, AND PROCESS OF MANUFACTURE

摘要

Perforating projectile of low calibre or of a calibre equal to 40 mm comprising a core (1) with a tapered forward end (2), said core being of a hard metal or alloy and/or of high density, encircled at the rear of the tapered section by a guide (3), which is in a generally cylindrical form and of a ductile metal. The part (4) of the core (1) encircled by the guide (3) has an undulating surface (5, 6) and the guide is crimped onto said part of the core by electro-magnetic moulding, with the result that the inner surface of the guide is linked axially and when rotating to said part (4) of the core (1), due to the undulating surface of said part.