METHOD FOR PRODUCING PRESSED COMPONENT, METHOD FOR DESIGNING DIE, DIE SHAPE DESIGNING DEVICE, AND DIE

• Main Authors: SHINMIYA, Toyohisa, YAMASAKI, Yuji, NAKAGAWA, Kinya
• Format: Patent
• Language: English; French; German
• Published: 12.07.2023
• Subjects: MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; TRANSPORTING; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

There are provided a method for producing a pressed component and a method for designing a die applicable even when a pressed component shape that cannot be formed without being greatly drawn is produced. A method for producing a pressed component for press forming a metal sheet into a final component shape through two or more press steps including a press step carried out by drawing includes: determining the inflow amount of a material required for forming the metal sheet into the final component shape based on the increase in the cross-sectional line length of the final component shape with respect to the cross-sectional line length of the metal sheet before forming in the press forming of the metal sheet into the final component shape by a single press step; and distributing the determined inflow amount of the material to each step including a final press step, and determining a preformed shape after press forming in steps other than the final press step based on the distributed inflow amount.