锻压技术

铜铝复合板等通道转角挤压模具设计及数值模拟

英文标题：Die design and numerical simulation of equalchannel angular pressing for CuAl composite plate

作者：张智敏潘健怡陈宇星李锦浩邝先霖

单位：华南理工大学广州学院

分类号：TG37

出版年,卷(期):页码：2021,46(1):136-141

摘要：

为了深入研究通过挤压成形制备铜铝复合板的工艺方法，利用等通道转角挤压（ECAP）方法工艺与设备简单的优点，设计了一套可拆卸、可更换模具转角的实验模具方案。利用HyperXtrude对铜铝复合板的等通道转角挤压过程进行数值模拟，分别选取模具转角为0°，15°，30°，45°和60°的5组方案进行了模拟与分析，对铜铝复合板在等通道转角挤压过程中的压力、应力场张量、速度场分布进行了探讨。结果表明：转角从0°变化至60°，压力从186.1 MPa下降至141.5 MPa；当转角为45°时，金属流动速度最为均匀。

In order to further study the process method of producing Cu-Al composite plate by pressing method, the experimental die scheme with detachable and replaceable die angular was designed based on the advantages of simple process and equipment for the equal-channel angular pressing method. The equal-channel angular pressing process of Cu-Al composite plate was numericaly simulated by HyperXtrude, then, five sets of schemes with the die angular of 0°, 15°, 30°, 45° and 60° were simulated and analyzed, and the pressure, stress field tensor and velocity field distribution of Cu-Al composite plate in the process of equal-channel angular pressing were discussed. The results show that when the angular changes from 0° to 60°, the pressure decreases from 186.1 MPa to 141.5 MPa. In addition, when the angular is 45°, the metal flow velocity is the most uniform.

基金项目：

基金项目:国家金属材料近净成型工程技术研究中心开放基金项目（2018010）；广东省大学生创新创业训练计划项目（201812617015）

作者简介：张智敏(1998-)，男，本科生 E-mail：1552965276@qq.com 通讯作者：潘健怡(1983-)，男，博士，副教授 E-mail：panjianyi@gcu.edu.cn

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