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Effect of Zn/Mg/Cu Additions on Hot Cracking Tendency and Performances of Al-Cu-Mg-Zn Alloys for Liquid Forging孙永根1,杜之明1,SU Yanni2,CHENG Yuansheng2,LIU Yongwang21. National Key Laboratory... the process of liquid forging, a host of hot cracking defects were found in the Al-CuMg-Zn aluminum alloy. Therefore, mechanical tests and analyses by optical microscope, scanning electron microscope, and X......
of beta titanium alloy Ti-10V-4.5 Fe-1.5 Al in hot upset forging [J]. Materials Science and Engineering A, 2002, 336(1-2): 150-158. [6] DING R, GUO Z X. Microstructural evolution of a Ti-6Al-4V alloy during... Trans. Nonferrous Met. Soc. China 22(2012) 761-767 Dynamic recrystallization of Ti-6Al-2Zr-1Mo-1V in β forging process OUYANG De-lai1, 2, WANG Ke-lu1, CUI Xia1 1. School of Materials Science......
Tempering stability of Fe–Cr–Mo–W–V hot forging die steelsYuan-ji Shi,Xiao-chun Wu,Jun-wan Li,Na MinSchool of Materials Science and Engineering, Shanghai University摘 要:The tempering stability of three Fe–Cr–Mo–W–V hot forging die steels(DM, H21, and H13) was investigated through hardness measurements and transmission electron microscopy(TEM......
Trans. Nonferrous Met. Soc. China 22(2012) 901-906 Numerical simulation and physical analysis for dynamic behaviors of P/M TiAl alloy in hot-packed forging process ZHANG Wei1, LIU Yong1, WANG Li1... September 2011; accepted 16 January 2012 Abstract: The hot forging of large-scale P/M TiAl alloy billet deformation was investigated based on a joint application of Deform-3D-based numerical simulation......
Finite element simulation on press forging of magnesium alloy AZ31 sheets ZHANG Shi-hong(张士宏)1, SUN Cheng(孙 成)1, WANG Zhong-tang(王忠堂)2 1. Institute of Metal Research, Chinese Academy of Sciences...; Abstract: Press forging......
by direct melt reaction(DMR), and then, the composite was hot-forged by one direction with 90 % plastic deformation. Then, the microstructure of the forging state composite was observed... with length of 100 lm along the forging direction. Some mechanical properties of composites hot-forged by one direction with 90 % plastic deformation are improved much obviously. For example,the tensile......
Design of relief-cavity in closed-precision forging of gearsZUO Bin(左斌), WANG Bao-yu(王宝雨), LI Zhi(李智), ZHENG Ming-nan(郑明男), ZHU Xiao-xing(朱小星) (School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China)Abstract:To reduce the difficulty of material filling into the top region of tooth in hot precision forging of gears using the alternative die designs......
tracing scheme of blade precision forging 2.2.1 Initial velocity field The blade precision forging is usually a hot forming process which depends on the strain-rate significantly, but the effect... simulation. Nevertheless, the blade precision forging belongs to hot forming process, and the heat exchange between the workpiece and die surfaces may do harm to the surface quality and inner microstructure......
in whole forging process DENG Kan, HUANG Minghui, LU Xinjiang, XIE Jinjing, WANG Zhineng (State Key Laboratory of High Performance and Complex Manufacturing,Central South University, Changsha 410083,China) Abstract: In the process of manufacturing the sophisticated and integral forgings with high performance, the accurate and stable operation of large die forging equipment is needed......
for numerical simulation of hot forging. Key words: microalloyed forging steel; flow stress; dynamic recovery; dynamic recrystallization; Zener-Hollomon parameter 1 Introduction During hot working... to support research and production of hot rolling[2-6], but less attention was paid to hot forging process, especially for microalloyed forging steels. Microalloyed forging steels are widely being......