作者：鲍立，郑德兵，余欢庆（泛亚汽车技术中心有限公司，上海201201）
摘要：选取不同料厚和强度等级的AHSS和UHSS材料，对其不同预变形量的料片进行扩孔试验，通过数据拟合分析，总结预变形量对AHSS和UHSS高强钢边缘开裂的影响，为后续边缘开裂研究及前期CAE预测边缘开裂状态提供参考。
关键词：预变形；AHSS；UHSS；高强钢；成形；边缘开裂
中图分类号：TG76 文献标识码：B 文章编号：1001-2168（2020）10-0062-05
DOI：10.16787/j.cnki.1001-2168.dmi.2020.10.014
Study on influence of pre-deformation on edge cracking of AHSS and UHSS high strength steel
BAO Li, ZHENG De-bing, YU Huan-qing (Pan Asia Technical Automotive Center Co., Ltd., Shanghai 201201, China)
Abstract: The AHSS and UHSS materials with different thickness and strength grade were selected to carry out counterboring test on sheets with different pre-deformation. Based on data fitting analysis, the influence of pre-deformation on the edge cracking of AHSS and UHSS high strength steel was summarized. It provided reference for subsequent edge cracking research and early CAE prediction of edge cracking state.
Key words: pre-deformation; AHSS; UHSS; high strength steel; forming; edge cracking