Transactions of Materials and Heat Treatment

Title：Design methods for multi-degree of freedom swing rolling process for copper high-voltage switch contact fingers

Authors： Xiong Wei1 2 Han Xinghui1 2 Zhuang Wuhao2 Yuan Xinhong2 Deng Zushen2

Unit： 1. School of Materials Science and Engineering Wuhan University of Technology 2. Hubei Key Laboratory of Advanced Technology for Automotive Components Wuhan University of Technology

KeyWords： multi-DOF swing rolling high-voltage switch contact finger metal flow blank shape flash form

ClassificationCode：TG306

year,vol(issue):pagenumber：2025,50(2):151-157

Abstract：

Copper contact finger is the core functional structure component of high-voltage switches, and its manufacturing performance directly determines the service performance and service life of high-voltage switches. Therefore, for the copper high-voltage switch contact fingers, the design method of multi-degree of freedom (DOF) swing rolling process was studied. Then, based on the Deform-3D finite element simulation platform, a 3D FE simulation model was established, and the influences of blank shape and flash form on the multi-DOF swing rolling of copper high-voltage switcher contact fingers were investigated and the variation laws of equivalent stress, equivalent strain and forming force during the forming process are revealed. The research results show that the copper high-voltage switch contact finger with good forming effect can be obtained by using the profiled blanks and the vertical flash. Based on the above-mentioned research, the process experiment was finally carried out, and the qualified copper high-voltage switch contact finger samples were obtained, which indicates that the proposed design method for multi-DOF swing rolling process of copper high-voltage switch contact fingers is effective.

Funds：

国家自然科学基金资助项目（U21A20131）；教育部创新团队发展计划项目（IRT17R83）

作者简介：熊薇（1998-），女，硕士研究生,E-mail：xiongw1122@163.com;通信作者：韩星会（1979-），男，博士，教授,E-mail：hanxinghuihlp@126.com

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