共搜索到11441条信息，每页显示10条信息，共1145页。用时：0小时0分0秒669毫秒
Chun-bo. Features of copper and aluminum continuous extrusion process and industrial application [J]. Rare Metals, 2004, 28(1): 257-261. (in Chinese) [2] CHO J R, JEONG H S. Parametric investigation... Effect of extrusion wheel angular velocity on continuous extrusion forming process of copper concave bus bar WU Peng-yue(吴朋越)1, XIE Shui-sheng(谢水生)1, LI Hua-qing(李华清)1, YAN Ming(鄢 明)1, HUANG......
大尺寸, 大挤压比型材, 可有效分配金属, 平衡金属流动速度. 关键词: 大挤压比; 铝型材; 有限元法; 有限体积法; 数值模拟 中图分类号: TG376.2 文献标识码: A Numerical simulation of extrusion process of aluminum profile with large extrusion ratio HUANG Guang-fa1...-walled aluminum profile with large extrusion ratio λ=98.27 and 1mm in thickness, was successfully simulated in the new simulation system on the platform of MSC Superforge. The simulation results......
；磨损；Archard；数值模拟 中图分类号:TG 376 文献标识码:A Effect of extrusion velocity to wear degree of aluminum profile PENG Bi-you1, 2, YIN Guo-Fu1, FU Jian2, CAI Peng1 (1 School... aluminum profile extrusion process. Key words: aluminum profile; extrusion velocity; wear; Archard; numerical simulation ......
经验法确定的工作带对金属流动均匀性的影响. 数值模拟结果表明, 本研究对挤压模具工作带的优化是有效的. 关键词: 铝型材; BP人工神经网络; 遗传算法; 挤压模具; 工作带; 有限元模拟 中图分类号: TG375 文献标识码: A Optimization of die bearing for aluminum profile extrusion die LIN Gao-yong1... of the extrusion die was analyzed by FEM and compared to the design with experiential way. The simulation results show that the optimization of die bearing is effective. Key words: aluminum profile; BP......
Effects of extrusion deformation on mechanical properties of sub-micron Si3N4p/2024 composite XIU Zi-yang(修子扬)1, CHEN Guo-qin(陈国钦)2, LIU Yan-mei(刘艳梅)2, YANG Wen-shu(杨文澍)2, WU Gao-hui(武...; Abstract: Si3N4p/2024Al composite was fabricated by squeeze casting method and treated by extrusion deformation. Microstructure analyses indicate......
(10): 1-4. ( in Chinese) [2] LIN Gao-yong, ZHOU Jia, ZHENG Xiao-yan. Numerical simulation of extrusion process of X5214 aluminum alloy profile [J]. Journal of Central South University Technology, 2008...): 1360-1365. (in Chinese) [11] LOU S M, ZHAO G Q, WANG R, WU X H. Modeling of aluminum alloy profile extrusion process using finite volume method [J]. Journal of Materials Processing Technology, 2008, 206......
Trans. Nonferrous Met. Soc. China 22(2012) 3073-3080 Effect of process parameters on sheath forming of continuous extrusion sheathing of aluminum ZHAO Ying1, SONG Bao-yun1,2, YUN Xin-bing1, PEI... of aluminum sheath during the continuous extrusion sheathing process was analyzed by using finite element methods based on software DEFORM 3D and experimentally validated. The results show that by increasing......
......
Trans. Nonferrous Met. Soc. China 20(2010) s906-s910 Rheological behavior, microstructure and hardness of A356 aluminum alloy in semisolid state using backward extrusion process S... increases with the decrease of temperature and wall thickness. Key words: aluminum alloy A356; backward extrusion; semisolid forming; rheology 1 Introduction About 40 years ago, SPENCER et al[1] noticed......
一种序列家族Profile HMM寻优的PSO陈雄峰闽江学院计算机科学系 福建福州350108摘 要:针对在训练一个序列家族的Profile HMM时经常会得到局部最优HMM的问题,也就是说找到全局最优Profile HMM的概率不高.通过分析训练一个序列家族Profile HMM方法的特点和Profile HMM本身的结构特点提出了一种结合多个局部最优或次优Profile HMM来寻找最优模型的PSO算法,以提高序列家族Profile HMM寻优的概率.关键词:Profile HMM;PSO;HMM模型;......
