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Optimization of press bend forming path of aircraft integral panel YAN Yu(阎 昱), WAN Min(万 敏), WANG Hai-bo(王海波), HUANG Lin(黄 霖) School of Mechanical Engineering and Automation, Beihang...; Abstract: In order to design the press bend forming path of aircraft integral panels, a novel optimization method was proposed, which......
Forming mechanism of three-dimensional integral fin based on flat surfaceXIANG Jian-hua(向建化)1, 2, DUAN Ji-an(段吉安)1, ZHOU Hai-bo(周海波)1, ZHANG Chun-liang(张春良)2, LIU Gui-yun(刘贵云)2, ZHOU Chao(周超)2(1...)Abstract:To improve heat-transfer performance, a novel integral three-dimensional fin-structure on the plat surface was presented to increase the evaporation efficiency. The three-dimensional fin-structure......
Forming mechanism of integral serrated high fins by plowing-extruding based on variational feed WAN Zhen-ping(万珍平), YAN Hui(燕 辉), TANG Yong(汤 勇) School of Mechanical and Automotive Engineering...-shaped finned tube can be machined out with high efficiency. The forming mechanism of integral serrated high fins by plowing-extruding based on variational feed is illustrated and the main technical......
Compound forming technology of outside 3D integral fin of copper tubes XIANG Jian-hua(向建化), TANG Yong(汤 勇), YE Bang-yan(叶邦彦), ZHOU Wei(周 伟), YAN Hui(燕 辉), HU Zhi-hua(胡志华) School... factors. XIA et al[14] obtained the spiral integral fin tube using chopping-extruding including three stages, chopping, extrusion and forming. But only two-dimensional fin tube can be achieved......
Formation of integral fins function-surface by extrusion-ploughing process CHEN Ping(陈 平), TANG Yong(汤 勇), LIU Xiao-kang(刘小康), LIU Xiao-qing(刘晓晴) College of Mechanical Engineering, South China University of Technology, Guangzhou 510640, China Received 9 November 2005; accepted 10 May 2006 Abstract: An extrusion-ploughing process was presented to fabricate the integral fin function-surface......
Prediction of stiffener buckling in press bend forming of integral panels YAN Yu1, WANG Hai-bo1, WAN Min2 1. College of Mechanical and Electrical Engineering, North China University of Technology... the buckling of stiffeners in the press bend forming of the integral panel, a method for solving the critical buckling load of the stiffeners in press bend forming process was proposed based on energy......
FEM equivalent model for press bend forming of aircraft integral panel YAN Yu(阎 昱), WAN Min(万 敏), WANG Hai-bo(王海波) School of Mechanical Engineering and Automation, Beihang University...%. The plastic equivalent model is valuable and essential for the further research on the press bend forming process of large scale complicated integral panels. Key words: equivalent model......
Evaluation of forming limit in viscous pressure forming of automotive aluminum alloy 6k21-T4 sheet WANG Zhong-jin(王忠金)1, LI Yi(李 毅)1, LIU Jian-guang(刘建光)1, ZHANG Yi-he(张义和)2 1. School...; Abstract: A ductile fracture criterion is introduced into numerical simulation to predict viscous pressure forming limit of the automotive body aluminum alloy 6k21-T4. The material constant......
J. Cent. South Univ. Technol. (2008) 15(s1): 215-220 DOI: 10.1007/s11771-008-349-4 Application research on metal rheological forming of reproducing kernel partial method YIN Shui-ping(殷水平), LUO... guidance for the application of meshless in actual engineering. Key words: numerical simulation; meshless method; reproducing kernel partial method(RKPM); rheological forming 1 Introduction Numerical......
Determination and application of stress-based forming limit diagram in aluminum tube hydroforming ZHOU Lin (周林), XUE Ke-min (薛克敏), LI Ping (李萍) School of Materials Science and Engineering, Hefei...-spacerun: yes"> Abstract: The stress-based forming limit......
