Transactions of Materials and Heat Treatment

Title：Study on quality of bionic egg-shaped shell based on granular medium bulging

Authors： Sun Zhiying Shi Zhengxian Shen Mingting

Unit： Jiangsu University of Science and Technology

KeyWords： egg-shaped shell granular medium bulging instability surface quality

ClassificationCode：TG306

year,vol(issue):pagenumber：2023,48(5):176-182

Abstract：

For the problems of complex processing technology, uneven deformation and poor forming accuracy of bionic egg-shaped shell, the solid non-metallic granular medium bulging process was proposed to enhance the processing accuracy and surface quality of plastic forming for bionic egg-shaped shells, and the numerical analysis model of granular medium bulging process for bionic egg-shaped shell was established by numerical analysis software. Then, by analyzing the plastic deformation process and stress distribution of bionic egg-shaped shell under the action of granular with the particle diameter of Φ1.8-Φ2.0 mm, the causes of wrinkling and instability for bionic egg-shaped shell were analyzed, and the bionic egg-shaped shells under the action of the granular with different particle diameters were obtained based on the granule medium bulging test for bionic egg-shaped shell. Furthermore, the influence laws of particle diameter on the instability and surface quality of bionic egg-shaped shells were investigated by analyzing the wrinkles, scratches on the inner surface, external surface topographies and external surface roughness of bionic egg-shaped shells under the action of the granular with different particle diameters. The results show that with the particle diameter decreasing, the final bulging pressure of bionic egg-shaped shell increases, the instability phenomenon increases, the external surface roughness is smaller, and the overall surface quality is higher.

Funds：

国家自然科学基金资助项目(52205372);张家港市产学研预研资金项目(ZKCXY2123)；江苏省研究生科研与实践创新计划项目(SJCX22_1924)

作者简介：孙志莹（1984-），女，博士，讲师,E-mail：szy611@just.edu.cn

Reference：

[1]Huang H, Zou M S, Jiang L W. Analysis of characteristic of acoustic radiation from axisymmetric pressure-resistant egg-shaped shells in the ocean environment [J]. Applied Ocean Research, 2021, 116:102890.

[2]Hauber M E. The Book of Eggs: A Life-Size Guide to the Eggs of Six Hundred of the World′s Bird Species [M]. Chicago: University of Chicago Press, 2020.

[3]Zhang J, Wang M L, Wang W B, et al. Biological characteristics of eggshell and its bionic application [J]. Advances in Natural Science, 2015, 8 (1):41-50.

[4]冯莹莹,刘照松,张宏阁,等. X形管内高压成形过程的加载路径优化 [J]. 锻压技术, 2022, 47 (5):121-127.

Feng Y Y, Liu Z S, Zhang H G，et al. Optimization on loading path in hydroforming process for X-type tube [J]. Forging & Stamping Technology, 2022, 47 (5):121-127.

[5]苑世剑,何祝斌,刘钢,等. 内高压成形理论与技术的新进展 [J]. 中国有色金属学报, 2011, 21 (10):2523-2533.

Yuan S J, He Z B, Liu G, et al. New developments in theory and processes of internal high pressure forming [J]. The Chinese Journal of Nonferrous Metals, 2011, 21 (10):2523-2533.

[6]石朋飞,张海丹,滕松,等. 内高压成形研究与应用 [J]. 模具制造, 2016, 16 (2):10-12.

Shi P F, Zhang H D, Teng S, et al. The research and application of internal high pressure forming [J]. Die & Mould Manufacture, 2016, 16 (2):10-12.

[7]杜冰,赵长财,李雪峰，等. 高温合金凸环管件固体颗粒介质成形工艺 [J]. 中国有色金属学报, 2011, 24 (7):1721-1729.

Du B, Zhao C C, Li X F, et al. Forming technology of high temperature alloy convex ring shaped tube by solid granule medium [J]. The Chinese Journal of Nonferrous Metals, 2011, 24 (7):1721-1729.

[8]曹秒艳,胡晗,李小钊,等. 真空灭弧室主屏蔽罩固体颗粒介质成形工艺研究 [J/OL].中国机械工程:1-9[2022-10-26].http://kns.cnki.net/kcms/detail/42.1294.TH.20221025.1836.008. html.

Cao M Y, Hu H, Li X Z, et al. Research on solid granular medium forming process of vacuum main shielding[J/OL]. China Mechanical Engineering:1-9[2022-10-26]. http://kns.cnki. net/kcms/detail/42.1294.TH.20221025.1836.008.html.

[9]Dong G J, Zhao C C, Peng Y X, et al. Hot granules medium pressure forming process of AA7075 conical parts [J]. Chinese Journal of Mechanical Engineering, 2015, 28 (3):580-591.

[10]Yang Z Y, Zhao C C, Dong G J, et al. Analytical model of corner filling with granular media to investigate the friction effect between tube and media [J]. The International Journal of Advanced Manufacturing Technology, 2018, 99 (1-4): 211-224.

[11]赵长财,任学平,董国疆,等. 管材固体颗粒介质成形工艺及其塑性理论研究 [J]. 中国机械工程, 2007, (16):2000-2005.

Zhao C C, Ren X P, Dong G J, et al. Process of solid granule medium forming and plastic research [J]. China Mechanical Engineering, 2007, (16):2000-2005.

[12]李小钊,薛从军,曹秒艳，等. 真空灭弧室中间屏蔽罩固体颗粒介质成形工艺研究 [J]. 塑性工程学报, 2021, 28 (2):38-45.

Li X Z, Xue C J, Cao M Y, et al. Study on solid granules medium forming process of vacuum interrupter intermediate shielding [J]. Journal of Plasticity Engineering, 2021, 28 (2):38-45.

[13]贾向东. 拉胀复合成形权函数理论及其在颗粒介质成形中的应用 [D]. 秦皇岛：燕山大学, 2017.

Jia X D. Weight Function Theory for Compound Forming of Drawing and Bulging and Its Application in Solid Granule Medium Forming Technology [D]. Qinhuangdao: Yanshan University, 2017.

Service：

【This site has not yet opened Download Service】【Add Favorite】