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Analysis of isothermal forging process and mechanical properties of complex aluminum forging for aviationHU Jian-liang(胡建良), YI You-ping(易幼平), HUANG Shi-quan(黄始全) (School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China)Abstract:Large complex 7A85 aluminum wing-body joint was forged employing isothermal forging process and its mechanical properties were......
多向锻造7075铝合金的结构和性能 李忠奎1,张小明1,张廷杰1,田锋1 (1.西北有色金属研究院,陕西西安,710016) 摘要:在440℃经多向锻造加工成7075铝合金锻件.研究了锻件的显微组织和力学性能随退火温度和T73回火的变化,TEM和SEM用于分析锻件的晶粒和第二相形态.多向和大变形锻造产生平均晶粒尺寸18μm的完全再结晶组织.390℃~450℃退火使晶粒长大到3μm,但位错和第二相分布没有明显改变,这时锻件展现出较低强度和较高延性.T73回火使锻件屈服强度和拉伸强度分别提高280%和210%,而延性同退火样相比并无明显下降,断裂韧性达到51MPa,可以认为这是沉淀强化的贡献. 关键词:7075铝合金; 多向锻造; 显微组织; 力学性能; 7075 aluminum alloy; multi-directional forging; microstructure......
Numerical simulation on forging process of TC4 alloy mounting parts L? Cheng(吕 成)1, 2, ZHANG Li-wen(张立文)1, 2 1. State Key Laboratory for Materials Modification by Later, Ion and Electron Beams... September 2006 Abstract: In order to eliminate forging defects appearing in production, based on the rigid-viscoplastic FEM principle, the DEFORM3D software package was employed to simulate the forming......
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STUDY ON DESIGN TECHNIQUES OF A LONG LIFE HOT FORGING DIE WITH MULTI-MATERIALS H.C. Wang1,X.J. Liu1,D.W. Li1 (1.School of Materials Science and Engineering, Wuhan University of Technology,Wuhan... forging die. Key words:hot forging die with multi-material; finite element analysis; thermal stress; [全文内容正在添加中] ......
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Model-based parameter identification of comprehensive friction behaviors for giant forging pressLI Yi-bo(李毅波), PAN Qing(潘晴), HUANG Ming-hui (黄明辉) (State Key Laboratory of High Performance Complex... model was proposed and applied to the forging press. The impacts on parameters which the external load had were also investigated. The results show that friction force decreases with velocity in the low......
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MODELING OF MICROSTRUCTURAL EVOLUTION IN MICROALLOYED STEEL DURING HOT FORGING PROCESS Z. Zhao1,J. Chen1,X.Y. Ruan1,J. Wang1 (1.National Die & Mold CAD Engineering Research Center, Shanghai Jiaotong University, Shanghai 200030, China) Abstract:The microstructural evolution of microalloyed steel during hot forging process was investigated using physical simulation experiments. The dynamic......