基于磁流变弹性体的柔性拉深模及可行性研究  

Flexible Drawing Die Based on Magnetorheological Elastomer and Its Feasibility Study

作　　者：刘旭辉 张远方 付泽民 甘鑫 王井湖 LIU Xuhui;ZHANG Yuanfang;FU Zemin;GAN Xin;WANG Jinghu(School of Mechanical Engineering,Shanghai Institute of Technology,Shanghai 201418,China)

机构地区：[1]上海应用技术大学机械工程学院,上海201418

出　　处：《热加工工艺》2021年第7期85-88,共4页Hot Working Technology

基　　金：国家自然科学基金项目(51675345);上海市自然科学基金项目(16ZR1435800)。

摘　　要：传统拉深模在拉深时常造成工件的起皱、拉裂。基于此,提出了一种基于磁流变弹性体的柔性拉深模,介绍了该柔性拉深模的结构和工作原理,并对其核心部件磁流变弹性体组件进行了内部磁场模拟,得到了外加不同电流下其内部的磁力线分布和磁感应强度;采用自行开发的磁流变法向力测试仪研究了磁流变材料的法向力。研究结果表明,随外加电流变化,磁流变材料的可控法向力效应明显。这验证了基于磁流变弹性体的柔性拉深模设计的可行性与合理性。The traditional drawing die often causes the workpiece to wrinkle and crack in the drawing. Based on this, a flexible drawing mold based on magnetorheological elastomer was presented, the structure and working principle of the flexible drawing die were introduced, and the internal magnetic field simulation of the core component of magnetorheological elastomer assembly was carried out, and the internal magnetic field line distribution and magnetic flux density under different applied currents were obtained. The normal force of magnetorheological materials was studied by using a self-developed magnetorheological normal force tester. The results show that with the change of external current, the controllable normal force effect of magnetorheological materials is obvious. This verifies the feasibility and rationality of flexible drawing die design based on magnetorheological elastomer.

关 键 词：柔性拉深模 磁流变材料 法向力 

分 类 号：TG386.32[金属学及工艺—金属压力加工]