Drawing rib structure of drawing die and design method

• Main Authors: YUAN ANGANG, LI CHUNYANG, WU MINGZE, ZHAO DAN, AN HONGZHEN, ZHANG LEI, KANG TIANYU, SONG CI, LI KAI, ZHANG XIONGFEI
• Format: Patent
• Language: Chinese; English
• Published: 03.10.2023
• 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

The invention relates to a drawing die draw bead structure and a design method. A closed draw bead is made into a draw bead with an open structure in an area closer to a corner; the width a of the draw bead convex rib in the closed area is 12mm; the convex rib width b of the draw bead in the open area is 16mm; the height h of the draw bead convex rib in the closed area is the same as the height of the open area; the width c of the concave rib groove is equal to (a + 0.3 + t) mm; the width d of the concave rib groove in the closed area is equal to (b + 0.3 + t) mm; the height h1 of the concave rib groove in the open area is equal to (h + 1.5) mm; adding a spherical crown model in an open area of the draw bead; the problem that in high-frequency rapid production of stamped parts, exhaust of square drawing ribs with the large resistance coefficient in the drawing process is not smooth is solved, and therefore the quality problems of the surface quality and the size of the stamped parts caused by the fact that ex