锻压技术

基于蓝光扫描逆向工程的某汽车A柱加强板冲压成形回弹补偿

英文标题：Springback compensation of stamping process for a automobile A-pillar reinforcement plate based on blue-ray scanning reverse engineering

作者：张辉赵朕潘爱琼

单位：郑州科技学院

关键词：回弹补偿蓝光扫描逆向工程 A柱加强板全工序模拟

分类号：TG386

出版年,卷(期):页码：2020,45(9):75-80

摘要：

针对某汽车A柱高强钢加强板零件，首先设计了弯曲切边冲孔翻边冲孔整形切边共4道工序，并进行了全工序模拟，模拟结果显示，零件成形性好、工艺可靠。针对由回弹造成的零件尺寸超差问题，基于蓝光扫描逆向工程技术，对初次试模零件进行蓝光扫描和逆向建模，并将其与零件初始设计模型进行对比，获得了零件的回弹量，并基于此结果对模具进行型面补偿。对回弹补偿后的零件进行检测，30个测量点的尺寸公差均满足设计要求。试验结果表明：该种基于蓝光扫描逆向工程的冲压成形回弹补偿方法是可行、有效的，能够避免反复试模，缩短模具开发周期。

For a highstrength steel reinforcement plate of an automobile A-pillar, four processes of bending, trimming and punching, flanging and punching, shaping and trimming were designed, and the whole process was simulated. The simulation results show that the parts have good formability, and the processes are reliable. Aiming at the problem of out-of-tolerance for part dimension caused by springback, blue-ray scanning and reverse modeling of parts for initial test were completed based on the blue-ray scanning reverse engineering technology. Compared with the initial design model of parts, the springback amount of parts was obtained, and the die surface compensation was carried out based on this result. Furthermore, the parts after springback compensation were detected, and the dimension tolerances of thirty measuring points for parts all met the design requirements. The test results show that the springback compensation method of stamping based on blue-ray scanning reverse engineering is feasible and effective, which can avoid repeated die testing and shorten the development cycle of die.

基金项目：

2018年河南省科技厅科技攻关项目（182102210553）

张辉(1985-)，男，硕士，讲师 E-mail：zhanghuia6666@163.com

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