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通过温热电磁复合成形的实验方法,在毛坯工件上磁压力载荷分布均一的条件下,研究AZ31镁合金板条在高速率温热成形条件下的变形行为,实验结果表明:坯料的变形高度和应变随放电电压的增大而增大,随放电电容的增大而减小;由于屈服强度和电阻率的综合影响,当温度低于150℃时,工件的变形高度和应变随温度的升高而有所增大,而当温度大于150℃时,工件的变形高度和应变随温度的升高而减小。
The deformation behavior of AZ31 magnesium alloy strip under high rate hot forming condition was studied under the condition of uniform magnetic pressure load distribution on the blank workpiece through the experimental method of warm electromagnetic compound forming. The experimental results show that the deformation height and The strain increases with the increase of discharge voltage and decreases with the increase of discharge capacitance. Due to the combined effect of yield strength and resistivity, when the temperature is lower than 150 ℃, the deformation height and strain of the workpiece increase with temperature But increases when the temperature is higher than 150 ℃, the workpiece deformation height and strain decreases with increasing temperature.