基于数字化网格应变法在汽车用钢冲压成形中的探索与应用  

Exploration of Digital Grid Strain Method in Automobile Steel Stamping and Its Application

作　　者：郝志强 刘仁东 徐鑫 苏洪英 李萧彤 HAO Zhiqiang;LIU Rendong;XU Xin;SU Hongying;LI Xiaotong(State Key Laboratory of Metal Material for Marine Equipment and Application,Anshan 114009,Liaoning,China;Ansteel Iron&Steel Research Institutes,Anshan 114009,Liaoning,China)

机构地区：[1]海洋装备用金属材料及其应用国家重点实验室,辽宁鞍山114009 [2]鞍钢集团钢铁研究院,辽宁鞍山114009

出　　处：《鞍钢技术》2022年第6期39-44,共6页Angang Technology

摘　　要：数字化网格应变法相比传统手工网格应变法,具有测量时间短、精度高,覆盖面积广等优点,在汽车用钢冲压成形领域被广泛应用。利用数字化网格应变法对汽车用钢H220YD冲压门外板汽车零部件过程进行了分析,测量了成形极限值、最大厚度减薄率等数据,掌握了冲压成形的风险区域。同时,分析与探讨冲压风险区域产生原因及改进措施,并给出模具调整意见,最终使得风险区域消除。事实证明,数字化网格应变法可以对汽车用钢冲压成形过程进行精确分析,从而有效提高汽车用钢冲压成形质量。Comparing to the traditional manual grid strain method,the digital grid strain method has the advantages such as short measurement time,high precision,wide coverage and it is widely used in the field of automobile steel stamping.So the stamoing process of auto parts of steel H220YD stamping door plate for automobiles was analyzed by using this method.After that the data on getting these values such as forming limit values,maximum thickness thinning rates were measured,and therefore the risks areas in stamping forming was under control.At the same time,the causes and improvement measures on the stamping risky areas were analyzed and discussed and the suggestions on adjusting a mold was proposed.As a result the risky areas were removed.As it turned out that the process of stamping automobile steels could be analyzed accurately by the digital grid strain method,and thus the stamping quality for automobile steels were effectively improved.

关 键 词：数字化网格应变 冲压成形 汽车用钢 成形极限 厚度减薄率 

分 类 号：TP39[自动化与计算机技术—计算机应用技术] TG3[自动化与计算机技术—计算机科学与技术]