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对金属多向选择流动的流动规律进行了数值模拟和试验研究。研究表明:金属在受力变形时,遵循主动模周围金属总是优先变形原则,并且金属变形存在强烈的区域选择性;多向受力的坯料不是在所有的可变形区域同时变形,而是交替变形。讨论了多向受力工件在变形时容易产生的缺陷与主动模位置及运动方向等的关系。模拟预测和试验分析结果一致,为精确设计多向成形工序提供了有力的依据。
Numerical simulation and experimental study on the flow rule of metal multi-directional flow selection. The results show that when the metal is subjected to force deformation, the principle of preferential deformation of the metal around the active die is always followed, and there is a strong regional selectivity of the metal deformation. The multi-directional blank does not deform simultaneously in all the deformable regions but alternates Deformation. Discusses the prone to produce multi-directional workpiece deformation defects and the active mold position and the relationship between the direction of movement. The results of simulation and test are in good agreement, which provide a powerful basis for accurately designing the multi-direction forming process.