CAJ | 학술논문

对AA5182-O铝合金进行与轧制方向成0°、45°、90°3个方向的单向拉伸试验，利用拉伸数据求得该材料的Swift本构方程，并将方程曲线和实验数据进行比较，同时在胀形试件长度分别与轧制方向成0°、90°角度时，对板料AA5182-O铝合金进行胀形试验，对其成形极限进行测量。研究表明：Swift本构方程能够很好地表示AA5182-O铝合金材料的流动性能，方程曲线和实验曲线十分吻合；AA5182-O铝合金0°轧制方向的成形极限曲线要高于90°轧制方向的成形极限曲线，同时材料的成形极限曲线的最低点发生了右移，出现在第一象限。
대AA5182-O려합금진행여알제방향성0°、45°、90°3개방향적단향랍신시험，이용랍신수거구득해재료적Swift본구방정，병장방정곡선화실험수거진행비교，동시재창형시건장도분별여알제방향성0°、90°각도시，대판료AA5182-O려합금진행창형시험，대기성형겁한진행측량。연구표명：Swift본구방정능구흔호지표시AA5182-O려합금재료적류동성능，방정곡선화실험곡선십분문합；AA5182-O려합금0°알제방향적성형겁한곡선요고우90°알제방향적성형겁한곡선，동시재료적성형겁한곡선적최저점발생료우이，출현재제일상한。
The uniaxial tensile test was conducted by using the material of AA5182-O aluminum alloy in three directions of 0 °,45 °,90 ° with rolling direction. The tensile data obtained was used to establish the Swift constitu-tive relationship,the calculated curve and experimental data were compared. 0 ° and 90 ° bulging specimen against the rolling direction of AA5182-O aluminium alloy were used to do bulging experiments,and the material forming limits were measured. It has shown that Swift constitutive relationship can well describe AA5182-O aluminum alloy flow performance,and calculated curves match well with the experimental curves perfectly. The forming limit curve of AA5182-O aluminum alloy in 0 °rolling direction was higher than 90 ° direction of rolling forming limit curve,the lowest point of the forming limit curve of AA5182-O moves to the right at the same time,which was in the first quad-rant.