Transactions of Materials and Heat Treatment

Title：Numerical simulation and verification on hot stamping frame die for Invar36 iron-nickel alloy thick plate

Authors： Zou Zhenyu Zhang Yi Zhang Xiaobo Yue Wei Chen Mingying Wang Qiang Jiang Kailin

Unit： AVIC Chengdu Aircraft Industrial (Group) Co. Ltd.

KeyWords： composite material forming tooling hot stamping Invar36 iron-nickel alloy discrete frame die transverse and longitudinal rib spacings

ClassificationCode：TB33; TG76; V261

year,vol(issue):pagenumber：2023,48(7):184-191

Abstract：

In order to solve the problem of poor forming effect of composite material tooling template for Invar36 iron-nickel alloy, the high-temperature hot deformation behavior of Invar36 iron-nickel alloy was studied by high-temperature compression experiments, and the finite element model of hot stamping frame die for Invar36 iron-nickel alloy thick plate was established by rigid-plastic finite element method and material parameters obtained from high-temperature compression experiments. Then, the influences of different transverse and longitudinal rib spacings on the forming effect of part were studied by the finite element simulation analysis, and the deformation characteristics of part during the forming process for the frame hot stamping die were summarized. The results show that in the area where the upper and lower dies are not supported by ribs, and the forming effect is the worst because the curvature change at the ridge line of part and the deformation are the largest, and there is no surface support. Therefore, a scheme of adding support ribs at the ridge line of part is proposed to improve the structure of frame hot stamping die, and the effectiveness of the improved hot stamping die structure is verified by hot stamping experiments.

Funds：

作者简介：邹震宇（1990-），男，硕士，工程师 E-mail：zzz2001118@qq.com

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