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High cycle fatigue properties of die-cast magnesium alloy AZ91D-1%MM XU Yu-lei(徐玉磊)1, ZHANG Kui(张 奎)1, LI Xing-gang(李兴刚)1, LEI Jian(雷 健)2, YANG Yuan-sheng(杨院生)3, LUO Tian-jiao(罗... properties of the die-cast magnesium alloy AZ91D containing 1% mischmetal (mass fraction) at a fatigue ratio of 0.1 were investigated. The difference in the microstructure between the skin and core region......
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；压力铸造；腐蚀疲劳；极化；断口形貌 中图分类号:TG146.2 文献标志码:A Corrosion and corrosion-fatigue behavior of die cast AlMg5Si2Mn alloy HU Zu-qi, WAN Li, WU Shu-sen, ZHU Peng (State Key Laboratory of Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, China) Abstract: The electrochemical corrosion, intergranular corrosion and corrosion......
件. 关键词: 镁合金; 优化浇注系统; 数值模拟; 真空压铸 中图分类号: TG146.2 文献标识码: A Design and optimization of runner and gating systems for vacuum die casting of magnesium through numerical simulation YU Yan-dong1, 2, LEI... and solidifying process, two pouring systems were designed to simulate the vacuum die casting process with finite element software. According to solidification laws to forecast the distribution and size......
第十三届国际压铸会议(13th International Die Casting Congress and Exposition)SDCE 1985张怀良摘 要:<正> 由压铸工程师学会组织的第十三届国际压铸会议和展览会于1985年6月3日至6月6日在美国密尔沃基召开.本次会议汇集的主要文献内容如下:关键词:......
of thin-wall aluminum alloy under high pressure die casting conditions ZHU Bi-wu1, 2, LI Luo-xing1, 2, LIU Xiao1, 2, WANG Shui-ping1, 2, ZHANG Li-qiang1, 2 (1. State Key Laboratory of Advanced Design... AlSi10MnMg aluminum alloy samples were prepared by high pressure die casting. The effects of pouring temperature on the microstructure and mechanical properties along the fluidity length were discussed......
stamping using a mechanical servo press in comparison with the conventional process using a hydraulic press. Parts having a different distribution of strength were produced by tailored die quenching using local bypass resistance heating. Die-quenched steel parts and ultra-high strength steel sheets were sheared by reducing the flow stress in the shearing zone using local resistance heating. An ultra-high......
;Chemical compositions of four AlSiMgMn alloys 图1 高真空压铸实验模具装配图 Fig. 1 Assembly drawing of die for high vacuum die casting experiment 图2 拉伸试样尺寸 Fig. 2 Shape and dimensions... Mechanical properties of high vacuum die casting AlSiMgMn alloys with different Mg contents under as-cast condition 为使热处理后Mg元素能够充分固溶在Al基体中,选择固溶温度为530 ℃,固溶时间为3 h.同时为了确定各组合金在185 ℃时效达到峰值的时间,测量了它们的......
应用两相流模型模拟压铸充型过程的卷气现象 李帅君1,熊守美1 (1.清华大学机械工程系先进成形制造教育部重点实验室,北京,100084) 摘要:通过对压铸充型过程中卷气缺陷形成机理的分析,认为型腔中空气的流动以及与金属液之间的相互作用是形成卷气现象的主要原因.为了考虑型腔中空气的流动,采用了一种不可压缩两相流数学模型来模拟压铸充型过程的卷气现象.通过计算流体力学中的两个基准算例,较为全面地验证了该模型的准确性和可靠性.在此基础上,设计了专门针对压铸充型过程的高速水模拟实验,通过对可视化实验结果与两相流模拟结果的比较,证实二者吻合较好,说明了该模型能够较好地模拟液体的充填行为和卷入其中的气泡. 关键词:压铸; 卷气; 两相流模拟; die casting; air entrapment; two-phase flow modeling; [全文内容正在添加中] ......
Trans. Nonferrous Met. Soc. China 24(2014) 3274-3284 Effects of die geometry on non-equal channel lateral extrusion (NECLE) of AZ80 magnesium alloy Faramarz FERESHTEH-SANIEE1, Mohammad ASGARI1... to attain higher grain refinement in comparison with equal channel lateral extrusion (ECLE). The die design for this process was numerically and experimentally studied. After finding a good correlation......
