锻压技术

基于Dynaform的弹簧座多工序冲压成形工艺设计及数值模拟

英文标题：Design on multi-step stamping forming process and numerical simulation for spring seat based on Dynaform

作者：吴磊姜建雨俞亚新

单位：浙江理工大学

分类号：TG386

出版年,卷(期):页码：2018,43(1):41-45

摘要：

针对某型弹簧座的结构特点，采用逆向展料法，综合运用UG和Dynaform软件制定了该零件拉深、校形、修边、成形、冲孔和翻孔6个工序的冲压成形方案。利用多工序成形模拟方法，建立了该型弹簧座的全工序数值模拟分析模型，并对零件的破裂、起皱和回弹等缺陷进行了预测。通过调整工艺参数，使得弹簧座成形后的板料增厚率不超过20%，板料减薄率小于30%，零件的回弹量不大于0.25 mm，满足了零件的成形要求。根据数值模拟分析结果，设计了该型弹簧座的6个成形工序的模具，试制产品的成形质量经过检测满足质检要求，现已投入批量生产。

For the structure characteristics of a spring seat, the stamping forming scheme of this part with six steps including drawing, sizing, trimming, forming, piercing and hole flanging was designed by adopting inverse unfolding approach combining software UG and Dynaform. Then, the numerical simulation analysis model of whole forming process for this spring seat was established by multi-step forming simulation method, and the defects such as wrinkle, crack and springback were analyzed. Through optimizing process parameters, after spring seat forming, the thickening rate of blank is not more than 20%, the thinning rate of blank is not more than 30%, and the springback value of part is less than 0.25 mm. Thus, the forming requirement of part is satisfied. Based on all numerical simulation analysis results, the dies of six steps for this spring seat are designed, and the forming quality of trial production meets the quality detection requirement well. At present, the mass production is conducted.

基金项目：

浙江省公益技术应用研究项目（2017C32048）

作者简介：吴磊（1992-），男，硕士研究生，E-mail：15967189863@163.com；通讯作者：俞亚新（1974-），女，博士，副教授，E-mail：yyxin@zstu.edu.cn

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