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Wrinkling behavior of magnesium alloy tube in warm hydroforming TANG Ze-jun(汤泽军), LIU Gang(刘 钢), HE Zhu-bin(何祝斌), YUAN Shi-jian(苑世剑) School of Materials Science and Engineering, Harbin Institute...; Abstract: In tube hydroforming with axial feeding, under the effect of coupled internal pressure and axial stress, wrinkles often......
Effect of united refining and modification on mechanical properties of A356 aluminium alloys ZUO Xiu-rong(左秀荣), ZHONG Zhi-guo(仲志国) Key Laboratory of Material Physics, Ministry of Education..., B, RE and Sr additions obtain the best mechanical properties in T6 treatment. Key words: A356 aluminium alloys; grain-refining aluminium alloys (GRAI); modification; refining; mechanical properties......
Effect of homogenization treatment on microstructure and hot workability of high strength 7B04 aluminium alloy WANG Tao(王 涛)1, 2, YIN Zhi-min(尹志民)1, SUN Qiang(孙 强)2 1. School of Materials Science... treatment on microstructure, overburnt temperature and hot rolling plasticity of high strength 7B04 aluminium alloy were investigated. Under the condition of homogenization at 470 ℃, the starting melting......
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Conception of tooling adapted to thixoforging of high solid fraction hot-crack-sensitive aluminium alloys G. VANEETVELD1, A. RASSILI1, J. C. PIERRET1, J. LECOMTE-BECKERS2 1. Thixo Unit, B56... aluminium alloys at high solid fraction by modifying process parameters like forming speed, tool temperature and tool thermal protector. Thus an optimum in terms of thermal exchanges has to be found......
冷加工对含Mn铝合金管腐蚀行为的影响王冠1,林晓群2(1.广东省广州市广东工业大学机电学院2.广东交通集团 广东省公路建设有限公司)摘 要:采用SEM,TEM,动电位极化和浸泡实验研究了机械冷加工变形对汽车散热器高Mn(0.22%,质量分数,下同)和低Mn(0.08%)铝合金管在0.6 mol/L NaCl(pH=6)和SWAAT(ASTM G85,pH=3)溶液中的腐蚀行为的影响.电化学极化测试表明,无形变时高Mn铝合金直管的点蚀电位最高;但冷加工能降低高Mn铝合金弯曲表面的点蚀电位,而对低Mn铝合金的点蚀电......
Key techniques of automatic gauge control and profile control for aluminium strip and foil LI Mou-wei(李谋渭)1, LIU Hong-fei(刘鸿飞)1, WANG Xiang-li(王向丽)1, TONG Chao-nan(童朝南)2, YIN Feng-fu(尹凤福)1, BIAN... and Technology Beijing, Beijing 100083, China Received 28 July 2006; accepted 15 September 2006 Abstract: Such characteristics of aluminium strip and foil as soft and thin gauge make tension control......
Mechanical property and formability of AZ31B extruded tube at elevated temperature HE Zhu-bin(何祝斌)1, LIU Gang(刘 钢)1, WU Jia(吴 佳)1, YUAN Shi-jian(苑世剑)1, LIANG Ying-chun(梁迎春)2 1...; Abstract: The mechanical properties of AZ31B magnesium alloy tube were tested by ring hoop tension test at different temperatures. The formability for tube hydroforming......
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Influence of tube ends constraint on hydro-bending of thin-walled aluminum tubeWANG Xiao-song, SONG Peng, ZHAO Zhong-yuan, YUAN Shi-jian(School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China)Abstract:The hydro-bending of thin-walled aluminum tube was researched by numerical simulation and experiments. The effects of internal pressure and tube ends......