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Optimization of processing parameters for rheo-casting AZ91D magnesium alloy WANG Ya-bao(王亚宝), XU Jun(徐 骏), YANG Bi-cheng(杨必成), ZHANG Zhi-feng(张志峰) General Research Institute... of primary α-Mg particles were conducted to determine the microstructure. The contribution of each parameter shows that pouring temperature is the most significant parameter affecting the grain size......
Trans. Nonferrous Met. Soc. China 22(2012) s851-s858 Development of micro milling force model and cutting parameter optimization Shih-ming WANG, Da-fun CHEN, Min-chang JANG, Shambaljamts TSOOJ... and effectiveness of the model and method. Key words: micro-milling; cutting force; spindle run out; cutter deflection; optimal parameter 1 Introduction Miniaturization has become the design trend......
Systems and Signal Processing, 2007, 21: 2814-2816. [5] KWOK N M, HA O P, NGUYEN M T, SAMALI B. Bous-Wen model parameter identification for a MR fluid damper using computationally efficient GA [J]. ISA...J. Cent. South Univ. Technol. (2011) 18: 672-678 DOI: 10.1007/s11771-011-0746-y Modeling and parameter identification of amplitude- and frequency-dependent rubber isolator SUN De-wei(孙德伟)1, CHEN......
with Ra 0.6 can be obtained. Key words: micro-arc oxidation; processing parameter; surface roughness; aluminum alloy ... Influence of processing parameters on coating surface roughness of aluminum alloy PAN Ming-qiang(潘明强), CHI Guan-xin(迟关心), WEI Dong-bo(韦东波), DI Shi-chun(狄士春) School of Mechatronics......
instability parameter are negative is characterized by the possibility of unstable flow. The efficiency value in the instable region is less. The optimum range of processing conditions are in the strain... Processing map for hot working of SiCp/7075 Al composites M. RAJAMUTHAMILSELVAN1, S. RAMANATHAN1, R. KARTHIKEYAN2 1. Department of Manufacturing Engineering, Annamalai University......
compression tests were performed over a range of strain rates (0.001-1.0 s-1) and temperatures (250-450 ℃). Power dissipation efficiency (η) and instability parameter were evaluated and processing...; (3) The variation of instability parameter with temperature and strain rate constitutes an instability map, which may be super-imposed on the power dissipation map, giving a processing......
Hot deformation behavior and processing parameter optimization of BT25y alloy with an initial equiaxed microstructure using processing mapXue-Mei Yang1,Hong-Zhen Guo1,Ze-Kun Yao1,She-Wei Xin31... the power dissipation efficiency (η) and identify the flow instability regions. When the strain reaches steady state, the optimum processing window is distributed in the area covering most......
J. Cent. South Univ. (2012) 19: 1764-1770 DOI: 10.1007/s11771-012-1203-2 Inverse procedure for determining model parameter of soils using real-coded genetic algorithm LI Shou-ju(李守巨)1, SHAO Long-tan... model parameter estimation. The tri-dimensional compression tests of soil are performed to supply experimental data for identifying nonlinear constitutive model of soil. In order to save computing time......
parameter represent microstructural instabilities. The instability map may be superimposed on the power dissipation map to obtain a processing map, which gives not only domains representing specific... Hot deformation and processing maps of titanium matrix composite WANG Rui-ning(王蕊宁)1, 2, XI Zheng-ping(奚正平)2, ZHAO Yong-qing(赵永庆)2, QI Yun-lian(戚运莲)2 1. School......
Hot deformation behavior and process parameter optimization of Ti22Al25Nb using processing mapJing-Li Zhang,Hong-Zhen Guo,Hou-Quan LiangSchool of Materials Science and Engineering,Northwestern... analyzed.The processing map(PM) of Ti22A125 Nb was built to predict the safe deformation region.The optimal low strain rate domain(DOM I) with high power dissipation efficiency indicates the complete......
