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以聚碳酸酯作为模型材料,采用三维光塑性实验方法对斜轧金属变形工步进行了实验模拟研究,对典型截面切片的等差线和等倾线条纹进行了观测分析,采用牛顿迭代法求解了斜轧制件内部的三维应变分布。结果表明,斜轧变形区属于复杂的三维变形,轧件的应变分布是不均匀的,其中心部应变最小,四周应变逐渐扩大;利用三维光塑性方法对斜轧成形进行实验模拟是成功的,为研究金属塑性成形工艺提供了一种有效的实验手段。
Taking polycarbonate as a model material, a three-dimensional photoplastic test was used to simulate the deformation process of the slant-rolled metal. The isometric and equipotential lines of typical cross-section slices were observed and analyzed. Newton’s iterative method was used to solve the problem. The three-dimensional strain distribution inside the slant-rolled parts. The results show that the deformation zone of the slant rolling belongs to the complex three-dimensional deformation. The strain distribution of the rolling member is inhomogeneous, the strain in the center part is the smallest and the strain in the periphery is gradually enlarged. The experimental simulation of the slab- It provides an effective experimental method for studying the metal plastic forming process.