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为了研究铝合金轴类件楔横轧的变形机理,通过三维塑性有限元软件对它的成形过程进行了数值模拟,获得了楔横轧变形过程中的金属流动行为、应力分布、应变分布,以及轧制力与接触面积的变化曲线。结果表明,在成形过程中,轧件表面金属流动快,心部金属流动慢;应力先迅速增大到最大值后逐渐减小,以均匀的循环应力展宽轧件,结束时迅速降为零;随楔入深度的增加,应变迅速增大到最大值后,增加速率减缓;轧制力随轧件与模具接触面积的增大而增大,展宽时呈波浪状上下波动,轧制结束时降为零。结果能为探索铝合金轴类件楔横轧成形提供借鉴。
In order to study the deformation mechanism of cross-rolling aluminum alloy shaft, the forming process of the aluminum alloy shaft was numerically simulated by three-dimensional plastic finite element software, and the metal flow behavior, stress distribution and strain distribution during the cross-rolling deformation were obtained. Rolling force and contact area of the curve. The results show that during the forming process, the flow of metal on the rolling surface is fast and the flow of metal in the heart is slow. The stress first increases rapidly to the maximum and then decreases gradually. The rolling is broadened with uniform cyclic stress and rapidly decreases to zero at the end. With the increase of wedging depth, the strain increases rapidly after the strain increases rapidly. The rolling force increases with the increase of the contact area between the workpiece and the die. When the strain is widened, Zero. The results can provide reference for the exploration of cross-rolling forming of aluminum alloy shaft.