Patent ID: 8580188

Claim:
A method for producing a penetrator made of a tungsten heavy metal core with a high tungsten fraction and having an outer sheath composed of a more ductile material compared to the penetrator core, comprising the steps of: concentrically inserting an inner pipe adapted to dimensions of the penetrator core into a compression matrix adapted to exterior dimensions of the penetrator; placing a double funnel filling device adapted to the dimensions of the penetrator core on the compression matrix; filling the inner pipe only with a first powder mixture containing tungsten with a tungsten fraction between 90 wt.-% and 97 wt.-% using the double funnel filling device so that only the first powder mixture is in the inner pipe; filling an annular space located between an outer wall of the inner pipe and an inner wall of the compression matrix using the double funnel filling device with a second powder mixture containing tungsten with a tungsten fraction between 85 wt.-% and 91 wt.-% that is less than the tungsten fraction of the first powder mixture; subsequently removing the double funnel filling device and the inner pipe from the compression, matrix; and subjecting the entire powder mixture to preliminary compacting and hydrostatic compression so that the penetrator core is connected to the sheath by a transitional area having a thickness between 25 μm and 200 μm.