Patent ID: 6619176
Filing Date: 2003-09-16
Classification: F42B

Abstract:
A method for making a liner for a shaped-charge, the method comprising:drawing a flat material into a concave shape radially symmetric about a central axis having an apex centered on the central axis and a mouth at the opposite end from the apex, where the center of the material is drawn down to form the apex while the perimeter of the material forms a skirt portion terminating in a circular skirt edge at the mouth of the liner wherein the material the the apex has a thickness; removing any excess flat material outside the circular skirt edge forming the mouth; machining at least some of the skirt portion removing material and thereby reducing the thickness of the skirt portion wherein the machining of the skirt portion reduces the thickness of the skirt portion until the machined skirt portion has a thickness within about 25% of the thickness of the material forming the apex.