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and Engineering, University of Science and Technology Beijing, Beijing 100083, China) Abstract: AZ91 and AZ91+2.0%Si Mg alloys were prepared by spray forming technology in protecting atmosphere... forming process restrains the growth of Mg2Si. Mg2Si existing in the fine grains, presents polygonal or near round shape, which uniformly distributes and can be the heterogeneous core of α-Mg, so......
Numerical simulation and its application of rheological forming of titanium alloy vane disk YU Min(余 敏)1,2, LUO Ying-she(罗迎社)1, PENG Xiang-hua(彭相华)3, QIN Yin-hui(覃银辉) 1,2 1. Institute... forming method was proposed to form the second titanium alloy vane disk. The hot rheological forming process of the TC11 titanium vane disk under a certain temperature and different strain rates......
Heat shock behavior of permanent die during non-solid near-net forming process ZHANG Mi-lan(张密兰)1,2, SHAN Zhong-de(单忠德)1, XING Shu-ming(邢书明)3, JIANG Chao(姜 超)1, XU Ying(许 应)1 1. State Key Laboratory of Advanced Forming Technology and Equipment, Advanced Manufacture Technology Center, China Academy of Machinery Science and Technology, Beijing 100083, China; 2. School of Mechanical......
Incremental forming of free surface with magnesium alloy AZ31 sheet at warm temperatures Y. H. JI, J. J. PARK Department of Mechanical and System Design Engineering, Hongik...; Abstract: The formability of AZ31 sheet begins to increase drastically at 150 ℃. The incremental forming technique was thus applied to AZ31......
Effect of temperature on vacuum hot bulge forming of BT20 titanium alloy cylindrical workpiece WANG Ming-wei(王明伟)1, 2, ZHANG Li-wen(张立文)1, 2, PEI Ji-bin(裴继斌)1, 2, LI Chen-hui(李辰辉)3, ZHANG Fan... parameters for BT20 titanium alloy cylindrical workpiece manufactured by vacuum hot bulge forming. A two-dimensional nonlinear thermo-mechanical coupled FE model was established. Numerical simulation......
Improving effect on forming quality and accuracy using a polyurethane board positioning/resetting the discrete steel pad in multi-point formingEr-hu Qu1,2,3,Ming-zhe Li1,2,31. College of Materials Science and Engineering,Jilin University2. Roll Forging Institute,Jilin University摘 要:To improve the quality of multi-point die forming, a new approach using......
Finite element simulation of aluminum alloy cross valve forming by multi-way loading ZHANG Da-wei(张大伟), YANG He(杨 合), SUN Zhi-chao(孙志超) State Key Laboratory of Solidification Processing, School... and coupled effects have a significant influence on forming process and quality of component formed, which are very complex in forming process of aluminum alloy 7075 cross valve under multi-way......
NUMERICAL INVESTIGATION OF STRAIGHT-LINE LASER FORMING UNDER THE TEMPERATURE GRADIENT MECHANISM Z.Q. Yao1,J. Hu1,H. Shen1,Y.J. Shi1 (1.School of Mechanical and Power Engineering, Shanghai Jiaotong University, Shanghai 200030, China) Abstract:Laser forming is a new flexible and dieless forming technique. To achieve the high accuracy forming, the temperature gradient mechanism (TGM) is studied......
J. Cent. South Univ. (2016) 23: 2845-2857 DOI: 10.1007/s11771-016-3348-x Stress-strain analysis on AA7075 cylindrical parts during hot granule medium pressure forming DONG Guo-jiang(董国疆)1, YANG Zhuo... Rolling, Yanshan University, Qinhuangdao 066004, China Central South University Press and Springer-Verlag Berlin Heidelberg 2016 Abstract: Hot granule medium pressure forming (HGMF) is a technology......
Medium-Mn steels for hot forming application in the automotive industryShuo-shuo Li,Hai-wen LuoSchool of Metallurgical and Ecological Engineering, University of Science and Technology Beijing摘 要... forming of boron-alloyed manganese steels, such as 22MnB5, could produce ultra-high-strength steel parts without springback and with accurate control of dimensions. Moreover, hot-formed medium-Mn steels......
