MANUFACTURING METHOD OF THICKNESS-VARIED METAL PLATE MANUFACTURING METHOD OF PRESSED PART AND PROCESSING MACHINE

摘要

In a manufacturing method of a metal plate having a thickness difference, first, a metal plate having predetermined plate thickness is cut into a predetermined shape to manufacture a cut plate (B). Subsequently, the cut plate (B) is rolled by a processing machine (10) provided with a pair of work rolls to manufacture a metal plate (TB1) having the thickness difference. Here, one of the pair of work rolls has a radius changed in the circumferential direction and the axial direction. Thereby, the metal plate (TB1) having the thickness difference, manufactured by rolling the cut plate (B) by the processing machine (10), has a configuration in which the plate thickness is changed in two different directions orthogonal to the plate thickness direction.