MANUFACTURING METHOD OF LINING OF CUMULATIVE CHARGE, AND LINING MADE USING THIS METHOD Russian patent published in 2012 - IPC F42B1/36 F42B1/32 B21K21/10 B21D51/10 

FIELD: weapons and ammunition.

SUBSTANCE: method involves cold forming of workpiece and formation of bulging till it obtains the required shape, depending on its final forms and geometrical dimensions, rotating drawing by rotation of workpiece. Mandrel for rotating drawing of workpieces having large dimensions is provided with slots for formation of key connection at the top of workpiece during rotating drawing. The next recrystallisation annealing is performed in oxygen-free environment; after that, calibration of lining is performed in closed volume by application of static force through deformable matrix. Lining of cumulative charge includes copper axisymmetrical cover with increase of thickness from top to bottom, which is made from copper with oxygen content of not more than 0.001% and with grain size of 30÷60 mcm.

EFFECT: increasing the efficiency of action of lining as part of cumulative charge at improvement of its manufacturability.

7 cl, 5 dwg