X5214铝合金型材挤压过程的数值模拟

来源期刊：中南大学学报(自然科学版)2008年第4期

论文作者：林高用 周佳 郑小燕 冯迪 黄光法 彭大暑

文章页码：748 - 754

关键词：大挤压比；铝型材；导流孔形状；数值模拟；

Key words：large extrusion ratio; aluminum profile; deflector shape; numerical simulation

摘    要：

Abstract: The finite element method (FEM) and the finite volume method (FVM) were used for numerical simulation of the extrusion process. The forming of a complex thin-walled aluminum profile X5214 with extrusion ratio of 98.28 was simulated in the new simulation system on the platform of MSC. SuperForge successfully. The uniformity of the velocity in z direction at the die orifice in three different deflector shapes was compared. The distributions of velocity field, effective stress field and temperature field during the extrusion process were discussed and the metal flowing process was analyzed. The results of numerical simulation show that, for X5214 aluminum profile, the most uniform flow velocity field can be obtained by adopting the symmetrical deflector.

基金信息：云南省省院省校科技合作计划项目