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processing of ECAP and thermomechanical treatment. Key words: titanium alloy; forging; equal channel angular pressing; multiple thermomechanical treatment; dislocation walls; twins intersection... titanium alloy TA15 was prepared through large deformation isothermal forging, low temperature multi-directional forging, equal channel angular pressing (ECAP), thermomechanical treatment......
of Technology, Wuhan 430070, China)Abstract:Cold rotary forging is an advanced and complex metal forming technology with continuous local plastic deformation. Investigating the contact force between the dies and the workpiece has a great significance to improve the life of the dies in cold rotary forging. The purpose of this work is to reveal the contact force responses in cold rotary forging......
middle range wireless power transfer systems with multiple resonatorsCHEN Xin(陈新)1, 2, ZHANG Gui-xiang(张桂香)1(1. State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body(Hunan... model of a middle range wireless power transfer (WPT) system was presented based on strongly coupled multiple resonators. The key parameters of the WPT system include self-inductance, resistance......
Grain size and texture changes of magnesium alloy AZ31 during multi-directional forging YANG Xu-yue(杨续跃)1, 2, SUN Zheng-yan(孙争艳)1, XING Jie3, MIURA Hiromi3, SAKAI Taku3 1... changes of magnesium alloy AZ31 were studied in multidirectional forging(MDF) under decreasing temperature conditions. MDF was carried out up to large cumulative strains of 4.8 with changing......
Inner-product of strain rate vector through direction cosine in coordinates for disk forging ZHAO De-wen(赵德文), JIN Wen-zhong(金文忠), WANG Lei(王 磊), LIU Xiang-hua(刘相华) State Key Laboratory... strain rate for disk forging with bulge was expressed in terms of two-dimensional strain rate vector, and then its direction cosines were determined by the ratio of coordinate increments. Furthermore......
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by direct melt reaction(DMR), and then, the composite was hot-forged by one direction with 90 % plastic deformation. Then, the microstructure of the forging state composite was observed... with length of 100 lm along the forging direction. Some mechanical properties of composites hot-forged by one direction with 90 % plastic deformation are improved much obviously. For example,the tensile......
Article ID: 1003-6326(2005)05-1009-05 Solution for slab forging with bulge between two parallel platens by strain rate vector inner-product integration and series expansion ZHAO De-wen(赵德文... was developed. First, effective strain rate for slab forging with bulge was expressed in terms of two-dimensional strain rate vector, and its inner-product was integrated term by term. Second, a summation......
Carbide Coating Preparation of Hot Forging Die by Plasma Processing杜文华School of Mechanical Engineering and Automation, North University of China摘 要:To meet the performance requirements of hot forging die heat resistant layer, the Ni60-SiC coating, Ni60-Cr3C2 coating, and Ni60-WC coating were prepared using W6Mo5Cr4V2 as substrate material with 30%SiC......
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