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镁/铝叠层复合板作为一种新型的叠层复合材料,利用爆炸+轧制的工艺方法生产镁/铝叠层复合板能够充分发挥镁合金和铝合金的性能优势。应用ABAQUS有限元分析软件对镁/铝爆炸复合板在不同热轧工艺下的热轧过程进行模拟,分析了轧制过程中温度、压下率对复合板宽展、等效应变及翘曲程度的影响。模拟结果表明:复合板宽展随温度的升高而略微降低,随轧制压下率的增大而增大;轧制过程中金属主要沿轧制方向进行流动,最大宽展率为3.5%;从复合板头部到尾部,节点的等效应力先升高、再维持水平、最后下降,界面最大等效应变随压下率的增加由0.164增大至0.523;轧制过程中,界面处金属温度高于两侧金属温度,轧制结束后温度由350℃降至237℃;轧制温度为350℃、轧制压下率为30%时,轧制效果最好。
Magnesium / aluminum laminated composite board As a new type of laminated composite material, the production of magnesium / aluminum laminated composite board by explosive + rolling technology can give full play to the performance advantages of magnesium alloy and aluminum alloy. The hot rolling process of magnesium / aluminum explosive composite plate under different hot rolling processes was simulated by ABAQUS finite element analysis software. The effects of temperature and reduction ratio on the span of composite plate, the equivalent strain and the degree of warpage Impact. The simulation results show that the breadth of the clad plate decreases slightly with the increase of temperature, and increases with the increase of the rolling reduction rate. During the rolling process, the metal mainly flows along the rolling direction with the maximum spreading rate of 3.5% ; From the head to the tail of the composite plate, the equivalent stress of the joint first increases, then maintains the level, finally decreases, the maximum equivalent strain at the interface increases from 0.164 to 0.523 with the reduction of the rolling reduction rate; at the interface Metal temperature is higher than the metal temperature on both sides, the temperature after the end of the temperature from 350 ℃ to 237 ℃; rolling temperature of 350 ℃, the rolling reduction rate of 30%, the rolling effect of the best.