Notch trimming and secondary cutting process method

• Main Authors: LIN WAN, JIANG BOHAI, DONG NANNAN, WANG TENGFEI, LI JINGYING, WANG QIANG, YANG JIE, ZHANG XUQI
• Format: Patent
• Language: Chinese; English
• Published: 03.11.2023
• Subjects: COMBINED OPERATIONS; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; TRANSPORTING; UNIVERSAL MACHINE TOOLS

The invention relates to a notch trimming and secondary cutting process method which comprises the following steps: straight trimming is carried out on a side line of a gdef section at a bottom flange, and a waste material A is separated; the akb section side line of the top surface is cut open but not cut off, so that no waste is generated; the side line of the side wall bcd section is cut open, and the waste B is separated; the jk section of the top surface is straightly trimmed, and the waste C is separated; according to the method, the trimming process of the end of the longitudinal beam with the flange is optimized mainly through a secondary cutting method. By means of the technology, the purposes of guaranteeing the die strength, improving the trimming quality and reducing the number of stamping procedures are achieved. 本发明涉及一种豁口修边二次切断工艺方法，包括：底部法兰处gdef段边线直修边，废料A脱离；顶面akb段边线切开，但不切断，无废料产生；侧壁bcd段边线切开，废料B脱离；顶面jk段直修边，废料C脱离；本发明主要通过二次切断方法，实现了对带法兰纵梁端头修边工艺的优化。通过此项技术，实现了保证模具强度、提高修边质量，减少冲压工序的目的。