轧制差厚板方盒件拉深成形的实验与数值模拟

doi:10.12068/j.issn.1005-3026.2022.06.006

东北大学学报（自然科学版） ›› 2022, Vol. 43 ›› Issue (6): 801-808.DOI: 10.12068/j.issn.1005-3026.2022.06.006

轧制差厚板方盒件拉深成形的实验与数值模拟

张思佳，胡贤磊，刘相华

(东北大学轧制技术及连轧自动化国家重点实验室，辽宁沈阳110819)

修回日期:2021-07-26 接受日期:2021-07-26 发布日期:2022-07-01
通讯作者: 张思佳
作者简介:张思佳(1990-)，男，河北张家口人，东北大学博士研究生；刘相华(1953-)，男，黑龙江双鸭山人，东北大学教授，博士生导师.
基金资助:
国家自然科学基金资助项目(U1460107， 51704065)；科技部国际合作专项资助项目(2015DFA50780).

Experimental and Simulation Study on Deep Drawing of Square Box Made from Tailor Rolled Blank

ZHANG Si-jia， HU Xian-lei， LIU Xiang-hua

State Key Laboratory of Rolling and Automation， Northeastern University， Shenyang 110819， China.

Revised:2021-07-26 Accepted:2021-07-26 Published:2022-07-01
Contact: HU Xian-lei
About author:-
Supported by:
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摘要/Abstract

摘要： 分析了轧制差厚板的显微组织和力学性能存在差异性的原因.针对差厚板方盒件的拉深成形过程建立有限元模型，探讨了其变厚度特性及性能差异化特征的建模方法.通过对比实验及模拟条件下方盒件的成形结果，证明了有限元模型的可靠性.根据验证后的有限元模型，以极限拉深高度和过渡区中心线偏移量为评价标准，分析了差厚板的几何参数(过渡区长度、过渡区位置、薄区与厚区的厚度差)对其拉深成形的影响.结果表明，过渡区越长、厚区占比越大、薄区与厚区的厚度差越小，则差厚板的拉深成形性能越好.确定差厚板的几何参数时，需综合考虑板料的成形性能和轻量化效果.

关键词: 轧制差厚板;方盒件;拉深成形实验;有限元模拟;轻量化

Abstract: The microstructure and mechanical properties of different parts in tailor rolled blanks(TRBs)were studied and the differentiation was explained. A finite element model was established to simulate deep drawing process of the square box from TRB and the effects of the thickness and non-uniformly distributed mechanical properties on the model setup were discussed. After comparison the experimental and simulation results， the reliability of the numerical model was verified. Taking the limit drawing height and the offset of thickness transition zone(TTZ)as the evaluation criteria， the effects of the geometric parameters(i.e. the length and position of the TTZ， and the thickness difference between the thin and thick area)on the formability of TRB were analyzed. The results show that when the TTZ length is longer， the distance between the TTZ and thin area is smaller and the thickness difference between thin and thick areas is smaller， the formability of TRB is better. Therefore， determining the geometric parameters of TRB need to consider the formability and light-weight effect.

Key words: tailor rolled blank(TRB); square box; deep drawing test; finite element simulation; light weight

中图分类号:

TG386.3

张思佳，胡贤磊，刘相华. 轧制差厚板方盒件拉深成形的实验与数值模拟[J]. 东北大学学报（自然科学版）, 2022, 43(6): 801-808.

ZHANG Si-jia， HU Xian-lei， LIU Xiang-hua. Experimental and Simulation Study on Deep Drawing of Square Box Made from Tailor Rolled Blank[J]. Journal of Northeastern University(Natural Science), 2022, 43(6): 801-808.

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轧制差厚板方盒件拉深成形的实验与数值模拟

Experimental and Simulation Study on Deep Drawing of Square Box Made from Tailor Rolled Blank

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