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: semisolid; extending extrusion; A2017 alloy; finite element modelling; flow; forming 半固态加工技术是一种高效节能的近终形新技术, 从20世纪70年代以来, 就引起了世界各国的重视, 且已相继投资开展了大量的研究工作, 其应用已扩展到交通, 机械, 电器制造业[1-9]. 传统的半固态加工技术主要以半固态触变成形为主... and Materials, 1989, 28(1): 16-26. [8]罗守靖, 田文彤, 谢水生, 等. 半固态加工技术及应用[J]. 中国有色金属学报, 2000, 10(6): 765-773. LUO Shou-jing, TIAN Wen-tong, XIE Shui-sheng, et al. Semisolid forming technology......
Effects of vibration and grain refiner on microstructure of semisolid slurry of hypoeutectic Al-Si alloy ZHAO Jun-wen(赵君文), WU Shu-sen(吴树森), XIE Li-zhi(谢礼志), AN Ping(安 萍), MAO You-wu(毛有武) State... of vibration and grain refiner on the microstructure of semisolid slurry of hypoeutectic Al-Si alloy were studied. The impact of vibration on the convection of liquid was conducted by using a system......
, MAO Wei-min. Technology and application of semisolid forming[J]. The Chinese Journal of Nonferrous Metals, 2000, 10(6): 765-773. [8] 张小立, 李廷举, 谢水生, 王同敏, 曹志强, 金俊泽. 半固态加工制浆技术的研究进展[J]. 稀有金属材料与工程, 2009...的铸件的微观组织呈现等轴球晶形貌,610℃时淬火试样的初生相晶粒平均直径为29 ?m,同时在缓慢冷却程中初生相α(Al)晶粒趋向于圆整并粗化. 关键词:半固态浆料；微观组织；热焓平衡；旋转磁场 中图分类号:TG 146.2; TG 249 文献标志码:A Semisolid slurry produced using enthalpy......
Forming limits of nickel coating on right region ZHOU Li-qun(周里群)1, 2, LI Yu-ping(李玉平)1, ZHOU Yi-chun(周益春)2 1. School of Mechanical Engineering, Xiangtan University, Xiangtan 411105, China; 2...; Abstract: The forming limits......
and partial remelting) produced ideal, fine semi-solid microstructure. Three essential procedures including fabrication of semisolid billets, reheating and forming are involved in the thixoforming process...Trans. Nonferrous Met. Soc. China 22(2012) s422-s427 Microstructure and properties of AZ80 alloy semisolid billets fabricated by new strain induced melt activated method JIANG Ju-fu1,2, WANG Ying3......
on deformation characters. Laser scanning confocal microscope and contourgraph were used to study the effects of electromagnetic forming parameters such as voltage and die depth on material. Results show that width and depth of micro channel increase with the increases of voltage with a certain die depth, moreover, forming depth reaches the maximum at 7 500 V. And then rebound emerges and forming......
Semisolid joining of aluminum A356 alloy by partial remelting and mechanical stirring S. M. J. ALVANI1, H. AASHURI1, A. KOKABI1, R. BEYGI1 Materials Science and Engineering Department, Sharif... the localized semisolid zone during butt-joining is developed. Since the heat conductivity of this alloy is very high, the accurate controlling of temperature during joining must be considered. A gas heating......
semisolid slurry preparation technologies and forming processes have been proposed such as two-screw rheoforming process (TSR) [17], low superheat pouring with a shear field process (LSPSF) [18...Trans. Nonferrous Met. Soc. China 24(2014) 1109-1116 Forced convection rheoforming process for preparation of 7075 aluminum alloy semisolid slurry and its numerical simulation Bing ZHOU1, Yong-lin......
: semisolid; serpentine channel; A356 aluminum alloy; larger capacity 1 Introduction A key step of semisolid metal forming technology is an economical production of semisolid slurry with fine grain... be avoided at this pouring temperature, thereby it is convenient for industrial operation. References [1] MAO Wei-min. Semisolid metal forming technology [M]. Beijing: China Machine Press, 2004......
for fabrication and rheoformation of aluminum and magnesium alloys semisolid slurry TENG Hai-tao1, 2, XIONG Bai-qing1, ZHANG Yong-an1, LI Ting-ju2, ZHANG Xiao-li2, XIE Shui-sheng1 (1. State Key Laboratory... semisolid slurry of A356 aluminum alloy in different pouring temperatures, were introduced. The results show that the microstructures are directly related to the pouring temperature, the lower pouring......
