不同硬化模型对第3代超高强度钢板冲压回弹预测的比较
发布时间：2019-04-08 15:49
【摘要】：针对第3代高强度钢(QP钢)冲压过程中因回弹严重、回弹预测困难而导致的修模时间长、修模成本高等问题,采用了Swift各向同性硬化模型以及NSK模型、Y-U模型和Chaboche模型等先进的硬化模型对QP980钢的冲压回弹进行了预测.用含有上述4种模型的LS-DYNA软件进行预测,并将结果与实际结果比较分析,发现Y-U模型能较好地预测QP钢冲压回弹.由此可以有效地辅助模具设计,减少修模次数,降低修模成本.
[Abstract]:The shift isotropy hardening model and the NSK model are used to solve the problems of long repair time and high mold cost in the stamping process of the 3rd generation high-strength steel (QP steel). The punch-back of QP980 steel is predicted by the advanced hardening model, such as the Y-U model and the Chaboch model. The LS-DYNA software containing the above four models is used for prediction, and the results are compared with the actual results. It is found that the Y-U model can better predict the punch-back of the QP steel. So that the die design can be effectively assisted, the number of mold repair times can be reduced, and the mold repair cost can be reduced.
【作者单位】： 上海交通大学模具CAD国家工程研究中心;
【基金】：国家自然科学基金项目(51675332)资助
【分类号】：TG386
[Abstract]:The shift isotropy hardening model and the NSK model are used to solve the problems of long repair time and high mold cost in the stamping process of the 3rd generation high-strength steel (QP steel). The punch-back of QP980 steel is predicted by the advanced hardening model, such as the Y-U model and the Chaboch model. The LS-DYNA software containing the above four models is used for prediction, and the results are compared with the actual results. It is found that the Y-U model can better predict the punch-back of the QP steel. So that the die design can be effectively assisted, the number of mold repair times can be reduced, and the mold repair cost can be reduced.
【作者单位】： 上海交通大学模具CAD国家工程研究中心;
【基金】：国家自然科学基金项目(51675332)资助
【分类号】：TG386
【相似文献】
相关期刊论文 前10条
1 戴强;我国超高强度钢标准化现状分析[J];冶金标准化与质量;2005年01期
2 王鲁;航天工业部超高强度钢的应用、发展与规划专题讨论会在常熟召开[J];宇航材料工艺;1984年03期
3 王鲁;壳体超高强度钢的研究应用现状及近期发展方向[J];宇航材料工艺;1984年06期
4 \√锟敌，
本文编号：2454707
本文链接：https://www.wllwen.com/kejilunwen/jiagonggongyi/2454707.html
