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J. Cent. South Univ. (2018) 25: 1475-1488 DOI: https://doi.org/10.1007/s11771-018-3841-5 Optimized algorithm in mine production planning, mined material destination, and ultimate pit limit Rahimi... and Springer-Verlag GmbH Germany, part of Springer Nature 2018 Abstract: An integral connection exists among the mine production planning, the mined material destination, and the ultimate pit limit (UPL......
Laser forming thin aluminum sheetsLI Li-qun(李俐群), CHEN Yan-bin(陈彦宾), LIN Shang-yang(林尚扬)(State Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 15001, China)Abstract:Laser forming is a flexible forming process that forms sheet metal by means of laser-induced stresses instead of by means of external force. With the rapid development of laser......
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......
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Trans. Nonferrous Met. Soc. China 22(2012) 564-570 Influence of forming process on three-dimensional morphology of TiB2 particles in Al-Ti-B alloys LI Peng-ting, LI Yun-guo, NIE Jin-feng, LIU Xiang... Abstract: A series of Al-Ti-B master alloys were prepared by different preparation routes, and the TiB2 particles in the master alloys were extracted and analyzed. It is found that the forming process......
Roof collapse of shallow tunnels with limit analysis methodYANG Xiao-li(杨小礼), LONG Ze-xiang(龙泽祥) (School of Civil Engineering, Central South University, Changsha 410075, China)Abstract:A new failure mechanism is proposed to analyze the roof collapse based on nonlinear failure criterion. Limit analysis approach and variational principle are used to obtain analytical findings concerning......
Processing limit maps for the stable deformation of dieless drawingYong He1), Xue-feng Liu1,2), Jian-xin Xie1,2), and Hong-gang Zhang1) 1) Key Laboratory for Advanced Materials Processing (MOE... of the deformation region profile decreased. The processing limit map of sta-ble deformation exhibited a closed curve and the unstable deformation consisted of wire breakage and diameter fluctuations.关键词:......
EXPERIMENTAL TESTING OF DRAW-BEAD RESTRAINING FORCE IN SHEET METAL FORMING J.H.Yang1,X.Y.Ruan1,D.N.He1,J.Chen1 (1.Department of Plasticity Forming Engineering, Shanghai Jiao Tong University, Shanghai 200030, China) Abstract:Due to complexities of draw-bead restraining force calculated according to theory anddepending on sheet metal forming properties experiment testing system......
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and development of gelcasting techniques are reviewed. The principles and processes of this forming technology are discussed. Gel systems are summed up and divided into synthetic and natural gel systems according to the source of gel systems. Applications are commented. Finally, the problems and development of gelcasting technology are also pointed out and analyzed. Key words: gelcasting; forming......
