Multi-direction extension integral forming die and method for sheet metal part

• Main Authors: LI YANHUA, WANG MENGTUAN
• Format: Patent
• Language: Chinese; English
• Published: 13.05.2022
• 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 multidirectional extension integral forming die and method for sheet metal parts, the multidirectional extension integral forming die is designed to be of an inverted structure, an ejection cylinder of a double-acting oil press provides a blank holder force required by extension forming in the first step, extension forming in the vertical direction is completed under the action of the oil press, and the forming efficiency is improved. Blank pressing force needed by second-step extension forming is provided through the mold clamping force of the mold, and main power for double-lateral forming is provided through an outsourcing hydraulic cylinder. According to the method, the problem of multiple times of material pressing during integral forming of the multi-feature sheet metal parts is solved, the multi-direction features of the sheet metal parts can be integrally formed, the forming process that the sheet metal parts are subjected to halving extension forming and then integral weldi