Analysis on Flanging Process and Accuracy Improvement of Flanging Mouth of the Shell for High-voltage Electrical Apparatus

LIU Nan; ZHAO Xiangping; ZHANG Dawei; LI Boqiang; WU Wenhui; GUO Zhijun; ZHANG Guolong

doi:10.13296/j.1001-1609.hva.2019.05.039

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Analysis on Flanging Process and Accuracy Improvement of Flanging Mouth of the Shell for High-voltage Electrical Apparatus

更新时间：2025-04-26

- Analysis on Flanging Process and Accuracy Improvement of Flanging Mouth of the Shell for High-voltage Electrical Apparatus
- High VoltageApparatus Vol. 55, Issue 5, Pages: 245-250(2019)
- 作者机构：
  
  1. 西安西电开关电气有限公司
  2. 西安交通大学机械工程学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2019.05.039
  CLC： TM83
- Published：2019
- 稿件说明：
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[1]刘楠,赵向苹,张大伟,李博强,仵文辉,郭志军,张国龙.高压电气用壳体翻边工艺过程分析及翻边口精度提升[J].高压电器,2019,55(05):245-250.

LIU Nan, ZHAO Xiangping, ZHANG Dawei, et al. Analysis on Flanging Process and Accuracy Improvement of Flanging Mouth of the Shell for High-voltage Electrical Apparatus[J]. High voltageapparatus, 2019, 55(5): 245-250.
[1]刘楠,赵向苹,张大伟,李博强,仵文辉,郭志军,张国龙.高压电气用壳体翻边工艺过程分析及翻边口精度提升[J].高压电器,2019,55(05):245-250. DOI： 10.13296/j.1001-1609.hva.2019.05.039.

LIU Nan, ZHAO Xiangping, ZHANG Dawei, et al. Analysis on Flanging Process and Accuracy Improvement of Flanging Mouth of the Shell for High-voltage Electrical Apparatus[J]. High voltageapparatus, 2019, 55(5): 245-250. DOI： 10.13296/j.1001-1609.hva.2019.05.039.

摘要

文中针对气体绝缘金属开关设备用翻边壳体翻边口尺寸超差

在较大翻边比的厚板壳体上尤为突出的问题

选择一种典型壳体

采用数值模拟技术

解决上述问题。通过研究表明:塑性成形模拟技术能够较准确地实现翻边现场状态

其翻边口尺寸、形状、应力应变、载荷变化与实际加工吻合;经分析主要有3个因素会影响翻边口尺寸

即筒体与模具的对中

翻边预孔尺寸和模具工作带的尺寸

其中模具工作带的形状和尺寸对翻边口精度提升起重要作用。通过模拟确定模具最佳工作带尺寸

并通过加工验证

成功解决了壳体翻边口尺寸超差的问题

提高了壳体质量和加工效率。

Abstract

In this study

one typical shell and numerical simulation technology is used to solve the problem that the size of flanging mouth in the shell of gas insulated metal switchgear is out of tolerance and much more serious in the thick shell. The results show that the plastic forming simulation technology could accurately achieve the flanging process

with the flanging size

shape

stress

strain and load change etc. agreeing well with the actual processing. It is found that there are three key factors influencing the results

including centering between cylinder and mould

pre hole size and dimensions of the working belt

in which the last two are crucial. Finally

the optimum working belt size is determined by simulation and verified through the actual process

which successfully solves the oversize problem in flanging. The processing quality and efficiency could be improved.

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