Metal plate forming method, intermediate shape design method, metal plate forming mold, computer program, and recording medium

摘要

A method of forming a metal plate by pressing the metal plate into a molded shape, then forming the metal plate into an intermediate shape, and then forming the metal plate into a molded shape, when forming the intermediate shape from the metal plate The first region including at least a part of the portion where the plate thickness reduction rate from the metal plate is larger is formed when the intermediate plate is formed into the formed shape than when the metal plate is directly formed into the formed shape. Thus, the intermediate shape is formed.