Research On Magnesium Alloy Sheet Formability And Computer Simulation

The research and application of magnesium-alloy has been regarded in USA, Germany, Australia and Japan during recent years. There are many research plans and devotion of magnesium R&D. At present, there are more than 500 kinds of magnesium alloys, included Mg-Al, Mg-Zn, Mg-Mn, Mg-Zr and Mg-RE system. With the rapid development of automobile and electronic industry, especially the communication industry, this is a big chance for magnesium alloy.Because the deform performance of magnesium alloy is bad, the processing technology is limited. The kinds of the processing technology are Magnesium Casting Technology, Magnesium Plastic Deforming Technology and Super-Plastic Forming Technology. But the intrinsic character of die-casting technology, the plastic deform technology is more advantaged. For example, there are too much flotsam, surface crack, axis-loosen and inner crack if the die-casting product is thin wall part, at the same time, the intension and the plastic performance are not enough. At latest years, the plastic processing technology research is more important, and it is a new area.The article is described about MB2magnesium and MB8 magnesium. The MB2 magnesium belongs to Mg-Al-Zn system, and the MB8 belongs to Mg-Mn-RE system. The data and graphs are concluded from lots of heated plastic deform experiments. The relationship between performance and temperature, velocity, lubrication will be achieved. There are some microstructure experiment for the purpose of getting the relationship between forming parameters and microstructure. The relationship between mechanics performance and temperature speed by high temperatureextension experiment for MB 8 magnesium alloy. The main contents include:The relationship and rules between MB2 magnesium alloy formability and technology parameters include temperature, velocity and lubrication is acquired. The first-rank forming parameters are obtained. The LDR (Limited Drawing Ratio) of forming which are running under the first-rank parameters are calculated by relative formula. The transformation of microstructure has been observed by metal microstructure microscope after forming. The reason is analyzed.The relationship between MB8 magnesium alloy formability and technology parameters has been investigated. The optimal parameters and LDR are acquired. Also the...