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, Harbin Institute of Technology, Harbin 150001, China)Abstract:The forming process was simulated numerically by ANSYS/LS-DYNA. The material flowing of tube-blank in the tube-compression process and the effect of the friction coefficient between die and tube-blank on the forming process were analyzed. The research results show that the flowing direction of tube-blank and the flowing direction......
THE STABILITY INVESTIGATION OF FERROELECTRIC SrBi2Ta2O9 THIN FILMS ANNEALED IN FORMING GAS A.D.Li1,N.B.Ming1,D.S.Wang1,Z.G.Liu1,D.Wu1,T.Yu1,A.Hu1 (1.National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China) Abstract:The hysteresis loop changes of ferroelecric SrBi2 Ta2 O9 (SBT) thin films (330nm) vsthe temperature of forming gas (5%o hydrogen+95%o nitrogen......
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Formation and mechanical properties of bulk Cu-Ti-Zr-Ni metallic glasses with high glass forming ability YANG Ying-jun(杨英俊)1, 2, KANG Fu-wei(康福伟)1, XING Da-wei(邢大伟)1, SUN Jian-fei(孙剑飞)1, SHEN...; Abstract: Bulk amorphous Cu52.5Ti30Zr11.5Ni6 and Cu53.1Ti31.4Zr9.5Ni6 alloys with a high glass forming ability can be quenched......
FEM SIMULATION FOR LASER FORMING PROCESSING Y.B.Chen1,S.Y.Lin2,X.Y.Wang2,L.Q.Li1 (1.State Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China;2.Harbin Research Institute of Welding, Harbin 150001, China) Abstract:Laser forming involves heating sheet metal workpiece along a certain path with a defocused laser beam directed irradiate......
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......
Porosity and surface roughness simulation of nickel-aluminum coating in plasma spray forming ZENG Hao-ping(曾好平)1, 3, FANG Jian-cheng(方建成)2, XU Wen-ji(徐文骥)1, ZHAO Zi-yu(赵紫玉)2, WANG Li(王 莉)2 1... 2006 Abstract: As the important evaluation parameters concerning the spray qualities, the porosity and surface roughness of the coatings obtained by thermal spray forming have great influence......
Effect of Ti addition on supercooled liquid region and glass forming ability of bulk amorphous Zr60Cu20Ni10-xAl10Tix alloysXING Da-wei(邢大伟), SUN Jian-fei(孙剑飞),LIU Yu-qiang(刘玉强),WANG Gang(王 刚), YAN... with increasing amount of Ti from 1% to 5% in the alloys. The relative glass forming ability shown by wedge-shaped samples of different Ti contents reveals the same trend with that of Trg. Therefore......
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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......
