METAL PLATE CONFORMATION METHOD, INTERMEDIATE FORMAT DESIGN METHOD, METAL PLATE CONFORMATION MATRIX, COMPUTER PROGRAM AND RECORDING MEDIA

摘要

the present invention relates to a method of forming a metal sheet into a target shape by press forming, so that the metal sheet is shaped into an intermediate shape that is different from the target shape and then the target shape is shaped from the intermediate shape, the method includes: when the intermediate shape is shaped from the metal plate, shape the intermediate shape by forming a first region that includes at least a portion in which a ratio of reducing the thickness of the plate of the metal sheet is greater when the target shape is shaped through the intermediate shape than when the target shape is directly shaped from the metal plate.