FRAGMENT FOR SHELL AND PRODUCTION METHOD THEREOF

摘要

PURPOSE: A fragment for a cannon ball and a manufacturing method thereof are provided to ensure low air resistance and rapid scattering speed since the width of a fragment is smaller than the diameter of a ball-type fragment. CONSTITUTION: A fragment(100) for a cannon ball comprises a 14-surface body(110). The body comprises 24 apexes(121,131) and 36 edges(123,133). 8 corners of the reguarl hexahedron of the body are cut to 33-37% depth from the edge toward the center of the regular hexahedron from the apex of the corner to remove triangular pyramid-shaped sections.