TAILIEUCHUNG - MAGNESIUM ALLOYS DESIGN, PROCESSING AND PROPERTIES_3

Tham khảo sách 'magnesium alloys design, processing and properties_3', khoa học tự nhiên, hoá học phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 17 Hot Forming Characteristics of Magnesium Alloy AZ31 and Three-Dimensional FE Modeling and Simulation of the Hot Splitting Spinning Process He Yang1 Liang Huang and Mei Zhan State Key Laboratory of Solidification Processing School of Materials Science and Engineering Northwestern Polytechnical University 542 Xi an 710072 China 1. Introduction As one kind of lightweight alloys in the widely applications magnesium alloys are currently the lightest structural materials with low density high specific strength and specific stiffness superior damping capacity Michael et al. 1999 Mordike Ebert 2001 . The superior damping capacity is provided by the lower Young s modulus-E and the value of E is no sensitive to material microstructures. When a structural component of magnesium alloy is subject to the same impact loadings it can perform more elastic deformation and absorb more impact energy. Besides stress distributions inside of a structural component of magnesium alloy are more uniform thereby high stress concentrations can be avoided. Therefore a structural component of magnesium alloy subjected to the impact loadings can be formed. Meanwhile as one new continuous and local plastic forming technology splitting spinning is designed to split a revolving disk blank from the outer rectangular edge into two flanges using a roller called splitting roller with a sharp corner and then shaping spinning is done by two or three other forming rollers Wong et al. 2003 Wang Liu 1986 as shown in Fig. 1. Compared with other conventional methods combining with casting forging and welding and then mechanical processing splitting spinning has the remarkable advantages of high efficiency low cost and good flexibility and its products for aeronautics astronautics automobile and weapon industry meet the high quality and high precision demands and are developed at low costs in a short time Yang et al. 2004 Song et al. 2000 . Accordingly based on the above remarkable advantages and .

• Hoá học
• Magnesium Alloys
• Acoustic Emission
• Electron Microscopy
• Evaluation Method
• Hydrogenation Treatment
• Spinning Process
• Microstructure
• Magnesium Based Quasicrystals
• Mechanical Propertie
• Technology Foresight
• Corrosion Inhibitors
• Promising Degradable
• Implant Materials
• Biomedical Application
• Electron Beam
• Implant Performance
• Influence Factors
• Surface Modification
• Mg Based Quasicrystals
• Surface Treatments
• Orthopaedic Applications
• Mechanical Properties
• Tạp chí khoa học
• Khoa học tự nhiên
• Electroless plating
• Electrochemical polarization techniques
• Journal of Chemistry
• AZ31 magnesium alloy
• Fluorosilane functionalized silica
• Superhydrophobic nanocomposite coatings
• Aluminum alloys
• Thiết kế máy
• cơ khí chế tạo
• cấp phôi tự động
• máy nâng chuyển
• máy kéo
• Dynamic Recrystallization
• Solder Interconnections
• Texturing Tendency
• Small Molecules
• Biological Antifreezes
• Cơ khí chế tạo máy
• Điện – điện tử
• Kiến trúc xây dựng
• Kỹ thuật viễn thông
• Tự động hóa