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Non-steady FE analysis on porthole dies extrusion of aluminum harmonica-shaped tube CHENG Lei(程 磊), XIE Shui-sheng(谢水生), HUANG Guo-jie(黄国杰), WU Peng-yue(吴朋越), HE You-feng(和优锋) State Key...-viscoplasticity finite element method, the porthole die extrusion process of an aluminum harmonica-shaped tube was successfully simulated based on software Deform-3D. The distribution of stress field......
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H, KANG C S, YUN C H, LIM S C, KWON H C. Fabrication and characterization of Ti-Cu clad materials by indirect extrusion [J]. Journal of Materials Processing Technology, 2007, 187-188: 653-656. [8...Trans. Nonferrous Met. Soc. China 26(2016) 456-463 Effect of intermetallic compound thickness on anisotropy of Al/Cu honeycomb rods fabricated by hydrostatic extrusion process Tae-hyuk LEE1,2, Moon......
400 ℃,挤压速度1~2 m/min),其极限抗拉强度,屈服强度和伸长率分别达到335 MPa,240 MPa和16.5%. 关键词:镁合金；挤压比；挤压筒温度；微观组织；力学性能 中图分类号:TG 146.2 文献标志码:A Influence of extrusion on microstructures and mechanical... under different conditions were tested. The results indicate that both the strength and plasticity are improved with increasing extrusion ratio. When extrusion ratio is more than 20, the effect of grain......
Investigation into Metal Flow Rule during Extrusion of Spherical Surface Parts林俊峰National Key Laboratory for Precision Heat Processing of Metals,Harbin Institute of Technology摘 要:A new process of extrusion forming was used to replace the traditional drilling technics.This kind of forming method may improve the structure of materials and anti-deforming......
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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... alloy in the semi-solid state was investigated using backward extrusion process. Experiments were performed at 5 temperatures and 4 different wall thicknesses. Viscosities were determined using the force......
Effect of Extrusion Ratio on the Microstructure and Mechanical Properties in an Al-Cu-Mg-Ag Alloy徐晓峰,赵宇光,ZHANG Ming,NING Yuheng,WANG XudongKey Laboratory of Automobile Materials, Ministry of Education, and Department of Materials Science and Engineering, Jilin University摘 要:In order to examine the effect of extrusion ratio on the microstructure......
Effect of Indirect Transformation of Retained Austenite During Tempering on the Charpy Impact Toughness of a Low-Alloy Cr–Mo–V SteelYong-Han Li,Zhong-Hua Jiang,Zhen-Dan Yang,Jue-Shun ZhuShenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences摘 要:A modified tempering treatment has been designed in order......
火焰原子吸收光谱法间接测定石灰石中氯含量姚永生1(1.河南省安阳市河南省有色金属地质矿产局第一地质大队)摘 要:提出了用硝酸溶解样品,以火焰原子吸收光谱间接测定石灰石中氯含量的分析方法.采用先往样品与校准曲线溶液中加入等量的氯离子,然后再往样品溶液中加入过量银离子使样品溶液及校准曲线溶液形成氯化银饱和溶液的方法,解决了火焰原子吸收间接法测定氯含量时微量悬浮氯化银及氯化银溶解性对测定的影响问题.在溶样过程中加入过硫酸铵氧化除去S2-,I-及大部分Br-等干扰离子,避开了过滤,蒸馏等繁琐且易受污染的操作步骤.方法相......
