Transactions of Materials and Heat Treatment

Title：Comparative study on deformation behavior of single and bi-layered U-shaped stainless steel bellows in hydroforming

Authors： Liu Jing Huang Weiliang Li Xiao Li Lanyun

Unit： Xi'an Shiyou University Northwestern Polytechnical University

KeyWords： U-shaped stainless steel bellow hydroforming single and bi-layered bellow deformation behavior

ClassificationCode：TG386.43

year,vol(issue):pagenumber：2016,41(5):24-28

Abstract：

Based on ABAQUS platform, FE models for single and bi-layered U-shaped stainless steel bellows hydroforming were established, and the key problems in modeling were solved. Furthermore, dynamic explicit algorithm was adopted for the bulging stage and standard implicit algorithm was used for the springback stage, and the reliability of FE model was verified by comparing with the experiment results. The wall thickness distributions and bellow profiles of single and bi-layered bellows were comparatively analyzed. The changes of the wall thickness can be shown by the change rate of wall thickness, and the waveform size can be measured by change values of wave thickness, wave height and wave distance. The results show that wall thinning rate of the single layered bellow is higher than that of the bi-layered bellow, and for bi-layered bellow, wall thinning rate of its inner layer is higher than that of the outer layer. After springback, the dimension change of the bi-layered bellow is more obvious than that of the single layered bellow.

Funds：

国家自然科学基金资助项目（51405386）；陕西省自然科学基础研究计划项目(2014JQ7237)；陕西省教育厅专项科研计划项目(14JK1565)；凝固技术国家重点实验室（西北工业大学）开放课题 (SKLSP201403)；国家级大学生创新创业训练计划项目(201410705028)

刘静（1983-），女，博士，讲师

Reference：

［1］Furushima T, Hung N Q, Manabe K, et al. Development of semi-dieless metal bellows forming process [J]. Journal of Materials Processing Technology, 2013, 213(8):1406-1411.
［2］刘丽君, 徐振廷. 金属波纹管行业现状及发展建议[J]. 管道技术与设备, 1993,（1）: 2-3.Liu L J, Xu Z T. Advance and development proposals of metallic bellows industry [J]. Pipeline Technology and Equipment, 1993,（1）: 2-3.
［3］朱宇, 万敏, 周应科, 等. 复杂异形截面薄壁环形件动模液压成形研究[J]. 航空学报, 2012, (5): 912-919.Zhu Y, Wan M, Zhou Y K, et al. Hydroforming of complicated thin-walled circular parts with irregular section by using moving dies[J]. Acta Aeronautica et Astronautica Sinica, 2012, (5): 912-919.
［4］Alaswad A, Benyounis K Y, Olabi A G. Tube hydroforming process: A reference guide [J]. Materials & Design, 2012, 33: 328-339.
［5］黄志勇, 陈伟, 陈勇, 等. 波纹管液压成形及其仿真中问题研究[J]. 压力容器, 2002,(Z1):137-140.Huang Z Y, Chen W, Chen Y, et al. Bellow hydraulic forming and its simulation research [J]. Pressure Vessel Technology, 2002,(Z1):137-140.
［6］Lee S W. Study on the forming parameters of the metal bellows[J]. Journal of Materials Processing Technology, 2002, 130-131: 47-53.
［7］Faraji G, Mashhadi M M, Norouzifard V. Evaluation of effective parameters in metal bellows forming process[J]. Journal of Materials Processing Technology, 2009, 209(7): 3431-3437.
［8］郎振华. 多层S型波纹管力学性能分析[D]. 大连:大连理工大学, 2012.Lang Z H. Mechanical Property Analysis of Multilayer S-shaped Bellows [D]. Dalian: Dalian University of Technology, 2012.
［9］宋林红, 黄乃宁, 林国栋, 等. CAE 在波纹管成形数值模拟中的应用[J].管道技术与设备, 2010, (4): 35-37.Song L H, Huang N N, Lin G D, et al. Application of CAE in numerical simulation of bellows forming [J]. Pipeline Technology and Equipment, 2010, (4): 35-37.
［10］Bakhshi-Jooybari M, Elyasi M, Gorji A. Numerical and experimental investigation of the effect of the pressure path on forming metallic bellows[J]. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2010, 224: 95-101.

Service：

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