Influence of Pressure Amplitude on Formability in Pulsating Hydro-bugling of AZ31B Magnesium Alloy Sheet
The formability of the magnesium alloy sheets is poor at room temperature even though the magnesium alloy sheets are attractive because of their excellent characteristics. Application of pulsating hydroforming is a new and effective method to improve the formability. The effects of the pressure amplitude on the maximum bulging height and minimum wall thickness of the formed parts of AZ3 IB magnesium alloy sheets are examined using finite element simulations. It is shown that the distribution of maximum bugling height and minimum wall thickness is similar for different pressure amplitude A, and a uniform expansion in bulging region is obtained, the cause of the uniform expansion obtained may be caused by the variation of stress components. The AZ31B sheet has an excellent performance in formability when the pressure amplitude and pulsating frequency are properly selected.
Pressure amplitude Uniform expansion Plastic behavior
Yang lianfa Yi liang Guo chen
School of Mechanical & Electrical Engineering, Guilin University of Electronic Technology, Guilin,54 School of Mechanical Engineering, Xian Jiaotong University, Xian 710049, China
国际会议
三亚
英文
397-402
2012-01-06（万方平台首次上网日期，不代表论文的发表时间）