基于Dynaform的底甲板压型过程数值模拟分析  

Numerical Simulation Analysis of Bottom Seck Press Forming Process based on Dynaform Software

作　　者：杜德恒[1] 李宏伟[1] 陈泳[1] 蔡晓清[1] 冯和永[1] 张卫华[1] 陈东红[1] 周正国[1] 高伟[1] 

机构地区：[1]北京北方车辆集团有限公司工艺技术中心,北京100072

出　　处：《新技术新工艺》2015年第11期61-66,共6页New Technology & New Process

摘　　要：底甲板成型过程中材料流动情况复杂,成型后产品易产生回弹,影响产品尺寸精度。结合生产实际情况,根据产品成型特点,应用Dynaform软件模拟分析不同成型参数下板料成型过程中的材料应变分布、厚度变化及回弹情况。根据模拟结果,分析模具间隙、保压时间和成型温度等工艺参数对冲压件产品质量的影响,预测产品在冲压成型过程中的质量问题,为工艺设计及模具结构改进提供了理论依据,并且提高了产品的成型尺寸精度。Because of the complex material flow during the forming process of bottom deck, the products are prone to re- hound, so that affect the dimension precision of the product. With the actual need for produce and according to the charac- teristics of the product, analyze the distribution of stress and strain and rebound in the forming process of molding parame- ters in different conditions during the bottom deck pressing process with Dynaform software. According to the simulation re sult, analyze the influence of die clearance, pressure holding time, temperature and other process parameters on the forming quality of stamping parts, predict the quality problem of the product during the forming process, and provide the theory ba- sis for the technological design and the die structure improvement, which can improve the dimension precision of the product during the forming process.

关 键 词：DYNAFORM 数值模拟 底甲板 压型 

分 类 号：TG376.2[金属学及工艺—金属压力加工]