COMPOSITE MOLD FOR A PYRAMID SANDWICH CORE WITH A DIAMOND SHAPE OF A PUNCHING PART, METHOD OF MANUFACTURING A PYRAMID SANDWICH CORE USING THE SAME AND PYRAMID SANDWICH PLATE STRUCTURE COMPRISING A PYRAMID SANDWICH CORE, CAPABLE OF ENHANCING PRODUCING SPEED BY PERFORMING BENDING AND BLANKING AT A TIME

摘要

PURPOSE: A composite mold for a pyramid sandwich core with a diamond shape of a punching part, a method of manufacturing a pyramid sandwich core using the same, and a pyramid sandwich plate structure comprising a pyramid sandwich core are provided to minimize spring back since the lower bent point of a bending part is sharply bent by a given angle. ;CONSTITUTION: A composite mold for a pyramid sandwich core consists of a lower mold(200), an upper mold(100) and a metal plate(300). A bending part is formed by female wedges and a blanking part(220). A plurality of male wedges matching with the female wedges are formed on the upper mold. The upper mold comprises a press member(110). The press member moves up and down on the male wedges. The metal plate is inserted into the lower mold. The metal plate is bent by the bending part by the pressure of the upper mold. The metal plate is punched in a diamond shape by the blanking part by the pressure of the press member.;COPYRIGHT KIPO 2011