Method for producing cylindrical cylindrical container and cylindrical container

摘要

In the present invention, when the long metal plate is punched into a cup shape and is processed into a cylindrical container, the unnecessary portion other than the blanking portion is reduced, and the generation of the ears when forming into the cylinder is made to be low level. The purpose of the present invention is to provide a method of forming a cylindrical cylindrical container with a maximum yield and a cylindrical container molded by the method. For this reason, in the present invention, the hexagonal shape of the hexagonal parallelepiped parallel to each other from the long metal plate is formed into a circular arc shape with each corner of the hexagram formed in an arcuate shape, and the blank is punched into the cylindrical container by wrinkling .