电工技术学报2019，Vol.34Issue(2)：212-218,7.DOI:10.19595/j.cnki.1000-6753.tces.180078
管件电磁胀形过程中的材料变形性能问题与电磁力加载方案
Study on Material Deformation Performance and Electromagnetic Force Loading in Electromagnetic Tube Expansion Process
摘要
Abstract
Electromagnetic tube expansion has been extensively studied for its obvious advantages in lightweight alloy processing.Due to the reduction of wall thickness and the non-uniform deformation in axial direction, the development of the existing electromagnetic tube expansion has been restricted.In this paper, the method of electromagnetic tube expansion with axial compression is proposed, with which both the radial and the axial electromagnetic force are applied to decrease the reduction of wall thickness.The simulation results show that the reduction of wall thickness is reduced from 15.05％ to 9.65％.Furthermore, the method of electromagnetic tube expansion with concave coil to weaken the electromagnetic force in the middle part is proposed to improve the tube forming performance.In the simulation, the maximum deformation is 36 mm, and it is obvious that the radial electromagnetic force produced by "concave" coil can effectively solve the problem of non-uniform tube deformation.The improvement of electromagnetism force loading can effectively solve problems in electromagnetic tube expansion and promote its industrial application.关键词
管件电磁胀形/壁厚减薄/变形非均匀/轴向压缩/凹型线圈Key words
Electromagnetic tube expansion/reduction of wall thickness/deformation nonuniformity/axial compression/concave coil分类
信息技术与安全科学引用本文复制引用
邱立,余一杰,聂小鹏,杨雨琪,苏攀..管件电磁胀形过程中的材料变形性能问题与电磁力加载方案[J].电工技术学报,2019,34(2):212-218,7.基金项目
国家自然科学基金资助项目(51507092,51707104) （51507092,51707104）
