| 摘要 |
Provided is a plate molding method that enables both yield improvement and molding property improvement. The molding method for a plate (1) involves applying plastic deformation to a plate (1) to mold a preliminary molded shape and then plastically deforming the preliminary molded shape to obtain a final shape. With respect to the cross section at a plurality of positions in the final shape, the preliminary molded shape is determined so that the ratio (L1/L0) of a cross section line length (L1) in the preliminary molded shape to a cross section line length (L0) in the final shape, such line lengths being at the same cross-section position, falls within a range of allowable values set beforehand. |
