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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......
: The possibility of the electric-hydraulic chattering technology and its application in the cold extrusion were presented. The conventional and electric-hydraulic chattering assisted backward extrusion processes... with that produced by the conventional extrusion method. Key words: 6061aluminum alloy; conventional backward extrusion; electric-hydraulic chattering assisted backward extrusion; finite element analysis......
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Trans. Nonferrous Met. Soc. China 28(2018) 328-339 Effects of backward path parameters on formability in conventional spinning of aluminum hemispherical parts Tian GAN1,2, Zhong-qi YU1,2, Yi-xi... 20 February 2017 Abstract: During multi-pass conventional spinning, roller paths combined with the forward and the backward pass are usually used to improve the material formability. In order......
A comparison between DCCAE and conventional extrusion of Mg-9.5Li-3Al-1.6Y alloy刘军威1,彭晓东1,2,王宝1,魏国兵1,2,谢卫东1,杨艳1,刘明朴31. College of Materials Science and Engineering Chongqing University2. National...) was performed in dual-phase Mg-9.5Li-3Al-1.6Y(wt.%) alloy to develop fine-grained microstructures. The microstructure evolution during DCCAE and conventional extrusion(CE) was investigated. The microstructure......
A comparison between DCCAE and conventional extrusion of Mg-9.5Li-3Al-1.6Y alloy刘军威1,彭晓东1,2,王宝1,魏国兵1,2,谢卫东1,杨艳1,刘明朴31. College of Materials Science and Engineering Chongqing University2. National...) was performed in dual-phase Mg-9.5Li-3Al-1.6Y(wt.%) alloy to develop fine-grained microstructures. The microstructure evolution during DCCAE and conventional extrusion(CE) was investigated. The microstructure......
mechanical properties using a conventional backward extrusion is a big challenge [3]. Novel backward extrusion is the new extrusion process, in which the newly redesigned die setup provides lower processing... can just flow between the mandrel and the die. However, novel backward extrusion has lower power and gives more strain uniformity along the extruded work piece in comparison with the conventional......
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: In the conventional hot extrusion of metallic materials, the temperature of the workpiece varies during the whole extrusion process, leading to the non-uniformity of the product dimension, microstructure... process of AZ31 magnesium. In addition, die temperature varies over a more narrow range in comparison with extrusion in the conventional iso-speed mode. Key words: magnesium; extrusion; simulation......
simulation 1 Introduction Aluminum extrusion is one of the conventional metal forming processes, mostly used to produce long, straight semi-finished products in the forms of solid and hollow sections with various complexities [1]. In recent years, extrusion methods and processes have been constantly improved and perfected. Except for studying the forward and backward extrusion deeply, there are many new......
