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Effects of Mg Enhancement and Heat Treatment on Microstructures and Tensile Properties of Al2Ca-Added ADC12 Die Casting AlloysGil-Yong Yeom1,2,Hyun Kyu Lim1,Shae K.Kim1,Soong-Keun Hyun2,Young-Ok... treatment on the microstructures and tensile properties of Al2Ca-added ADC12 die casting alloys were investigated. 0.3% and 0.5% Mg in the form of a master alloy including a trace amount of Al2Ca were......
Trans. Nonferrous Met. Soc. China 20(2010) s954-s960 Metal flow and die wear in semi-solid forging of steel using coated dies L. KHIZHNYAKOVA1, M. EWERING2, G. HIRT1, K. BOBZIN2, N... coating). The current work presents the results of an experi-mental and numerical study of the process parameters, material flow and die wear in steel X210CrW12 thixoforging. The first thixoforging......
Effects of Lanthanum on Mechanical Properties of 5CrNiMo Forging Die Steel郝新,郭洪飞,高文海,刘景顺,何智慧摘 要:The alteration of the strength, hardness and impact ductility of 5CrNiMo steel using three different additions of RE La element is studied in this paper. The mechanical properties of 5CrNiMo steel with RE La additions are be compared with that of the 5CrNiMo......
Preparation and Property of Chromium Carbide Thermal Diffusion Coating on Cold Working Die Materials袁志华School of Electrical and Mechanical Engineering, North University of ChinaSchool of Equipment Engineering, Shenyang Ligong University摘 要:Thermal diffusion (TD) salt bath chromizing of cold working dies was studied. Firstly, it obtained an ideal salt......
Trans. Nonferrous Met. Soc. China 25(2015) 375-380 Effect of multi-step slow shot speed on microstructure of vacuum die cast AZ91D magnesium alloy Qing-liang WANG1,2, Shou-mei XIONG1,2 1. School...; accepted 28 July 2014 Abstract: Two multi-step (two-step and three-step) slow shot speeds were used in the vacuum die casting process of AZ91D magnesium alloy. The vacuum pressure variation in the die......
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焊合室高度对分流组合模挤压成形过程的影响 和优锋1,程磊1,谢水生1,黄国杰1 (1.北京有色金属研究总院有色金属材料制备加工国家重点实验室,北京,100088) 摘要:基于刚粘塑性有限元理论, 采用DEFORM-3D有限元商业软件, 对3种不同焊合室高度下的薄壁多孔口琴管挤压过程进行数值模拟.重点研究了不同焊合室高度对金属的流动规律,型材的出口流速均方差,挤压力,焊合压力, 以及金属应变场的影响规律, 从而为合理的设计模具提供了有效的理论指导. 关键词:分流组合模; 挤压成形; 数值模拟; 口琴管; 焊合室高度; [全文内容正在添加中] ......
Stresses State and Mechanical Behaviors of the Green Body During Die Compaction and Ejection ProcessS. M. Wang1,Y. Wang1,Y. X. Wang1,F. P. Liu1,J. Cao21. Department of Materials Science and Engineering,University of Science and Technology Beijing2. State Key Laboratory of Advanced Welding and Joining,Harbin Institute of Technology摘 要:Finite element......
Dynamics of Polymeric Fluids 1. The Molecular Theory of Die Swell:A Set of Equation on Swelling Ratio in ExtrudatesMingshi SONG,Guixian HU,Zhihong YANG,Qiang XU and Sizhu WU Key Laboratory of Science... of the multiple-transient networks and the mechanism of the multiple-reptation entangled chains due to the dynamic reorganization in the entangled sites were extensively applied on the die swell of polymeric......
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