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Effects of Ca addition on tensile properties and microstructures of hot-extruded AZ91 alloy tube WANG Feng(王 峰)1, LIU Zheng(刘 正)1, YU Bao-yi(于宝义)1, ZHANG Kui(张 奎)2 1. School of Materials Science... 2006 Abstract: As-cast AZ91+XCa (X=0, 0.5%, 1.0%, 1.5%, mass fraction) magnesium alloys were extruded into tube at 380℃ with an extrusion ratio of 6:1. The tensile properties and microstructures......
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Experimental investigation of axially loaded steel fiber reinforced high strength concrete-filled steel tube columnsLU Yi-yan(卢亦焱), LI Na(李娜), LI Shan(李杉), LIANG Hong-jun(梁鸿骏) (School of Civil Engineering, Wuhan University, Wuhan 430072, China)Abstract:an experimental study on the compressive behavior of steel fiber reinforced concrete-filled steel tube columns is presented. specimens were tested......
J. Cent. South Univ. Technol. (2011) 18: 1813-1818 DOI: 10.1007/s11771-011-0907-z Characteristics of thickness distribution of tailor-welded tube hydroforming CHU Guan-nan(初冠南)1, 2, LIU Gang(刘钢)3... Berlin Heidelberg 2011 Abstract: Both experimental and mechanical analyses were carried out to investigate the characteristics of thickness distribution for tailor-welded tube (TWT) hydroforming......
Spring-back deformation in tube bendingDa-xin E,Hua-hui He,Xiao-yi Liu,and Ru-xin Ning School of Materials Science and Engineering,Beijing Institute of Technology,Beijing,100081,China摘 要:The spring-back of a bending metal tube was studied through extensive experiments and finite element method (FEM) analysis. An approximate equation for the spring-back......
Trans. Nonferrous Met. Soc. China 20(2010) s921-s925 Numerical simulation on thixo-co-extrusion of double-layer tube with A356/AZ91D WANG Kai-kun(王开坤), SUN Jian-lin (孙建林), MENG Hai-feng... Abstract: Based on analysis of the main forming methods for double-layer tube, a new short-term forming process called thixo-co-extrusion was put forward in producing double-layer tube by combining......
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Cross-sectional distortion behaviors of thin-walled rectangular tube in rotary-draw bending process ZHAO Gang-yao(赵刚要), LIU Yu-li(刘郁丽), YANG He(杨 合), LU Cai-hong(卢彩红) College... distortion usually appears during rotary-draw bending process of thin-walled rectangular tube with small bending radius. To study the cross-sectional distortion of the tube, a three-dimensional finite......
Special-shaped tube drawing forming and conformal optimization of die cavity QI Hong-yuan(齐红元), ZHU Heng-jun(朱衡君) School of Mechanical and Electric Control Engineering,Beijing Jiaotong University, Beijing 100044, China Received 20 April 2006; accepted 30 June 2006 Abstract: Aiming at the issues in quick processing and modeling design of drawing special-shaped tube die, by Conformal......
