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Liang S.,Sino Euro Materials Technologies of Xian Co. | Liang S.,Harbin Institute of Technology | Liu Z.,Harbin Institute of Technology | Wang E.,Harbin Institute of Technology
Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering | Year: 2015

The extrusion process of AZ31 magnesium alloy has been simulated. An actual experiment was also carried out and simulated by DEFORM-2D. The result shows that the simulated temperature-time curve agrees well with the measured one, indicating the good accuracy of the simulation parameters. And then a series of simulations of AZ31 extrusion were analyzed. The temperature distributions, stress distributions and extrusion loads were obtained. Matlab were used to describe the relationship among them in four-dimensional space. ©, 2015, Rare Metals Materials and Engineering Press. All right reserved. Source


Zeng G.,Sino Euro Materials Technologies of Xian Co. | Han Z.,Sino Euro Materials Technologies of Xian Co. | Liang S.,Sino Euro Materials Technologies of Xian Co. | Zhang P.,Sino Euro Materials Technologies of Xian Co. | And 2 more authors.
Materials China | Year: 2014

Manufacturing of metal parts by 3D printing technology, as the most advanced and potential technology of 3D printing technologies, presents the most important direction of modern advanced manufacturing technologies. With the development of science and technology constantly demanding for materials, utilizing the rapid proto-typing technology to produce metal functional parts directly will be the main research direction. 3D printing technology is rapidly changing our traditional production mode and life style. 3D printing manufacturing technology, which is networked and personalized, will drive the third industrial revolution. Laser engineered net shaping (LENS), selective laser melting (SLM) and electron beam selective melting (EBSM) are the typical representatives of the metal parts 3D printing technology. Based on the three types of technologies, the metal parts 3D printing technology and its basic principles and application fields are introduced. At last, the development prospect of the printing technology is discussed. Source


Han Z.,Sino Euro Materials Technologies of Xian Co. | Zeng G.,Sino Euro Materials Technologies of Xian Co. | Liang S.,Sino Euro Materials Technologies of Xian Co. | Chen X.,Sino Euro Materials Technologies of Xian Co. | And 2 more authors.
Materials China | Year: 2014

P/M superalloy is the preferred material for critical hot sections of advanced aero-engine, advanced powder preparation technique is the key to obtain high-quality superalloy powder and ensure the quality of P/M superalloy. In recent years, breakthrough has been made on research and production of P/M superalloy in China, the new generation P/M superalloy was successfully developed and the mature production process of P/M superalloy was formed. The pure powder preparation technology has been developed, which meets the requirements of P/M superalloy aero-engine key parts, through the in-depth research on high-purity master alloy smelting technology, advanced atomization technology and electric separation technology. This paper briefly reviewed the domestic and international development of P/M superalloy. The sources of defects in P/M superalloy and their impact on the property of the alloy were analyzed. Then, three key technologies of superalloy powder production process were summarized. Lastly, the further development direction of superalloy powder preparation technology was discussed. ©, 2014, The Editorial Board of Materials China. All right reserved. Source


Xu W.,Sino Euro Materials Technologies of Xian Co. | Han Z.,Sino Euro Materials Technologies of Xian Co. | Liang S.,Sino Euro Materials Technologies of Xian Co. | Zeng G.,Sino Euro Materials Technologies of Xian Co. | And 2 more authors.
Fenmo Yejin Jishu/Powder Metallurgy Technology | Year: 2015

Powder metallurgy (P/M) superalloys are selected as turbine disks materials for advanced aero engine applications due to their specific microstructure and high temperature properties, using powder metallurgy superalloys can significantly improve the mechanical properties and thermal properties of the alloy process. This paper outlines the principles of superalloy production process and characteristics, focusing on Russia measures for improving the quality of superalloy taken in the superalloy preparation process. These can give a reference to aviation industry in China. © 2015, Beijing Research Institute of Powder Metallurgy. All right reserved. Source

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