PLATE FORMING METHOD AND PLATE FORMING DEVICE

摘要

Provided is a plate forming method and plate forming device capable of processing a plate with high precision when forming a plate by local heating. This plate forming method is characterized by comprising: a compression step (S3) of bending a titanium material plate by pressing the same against a mold in a situation where a tensile load is applied so that a prescribed tensile stress is generated on the plate; a preforming step (S5) of locally stretching the portions of the plate that are contacting the mold so that portions floating from the mold contact the mold; a contact inspection/determination step (S6, S7) of inspecting and determining whether the plate is contacting the mold; and a primary forming step (S9) of forming the entire plate by heating the same to a temperature where plastic deformation thereof starts and stretching to an extent where the shape is deformed does not occur.