Experiment on electric discharge machining of cooling holes in superalloy IN718

GUO Yong-feng; ZHANG Guo-wei; WANG Li; GUO Ben-sheng

doi:10.13224/j.cnki.jasp.2016.02.002

Chinese

您当前的位置：

首页 >

文章列表页 >

Experiment on electric discharge machining of cooling holes in superalloy IN718

更新时间：2026-07-07

- Experiment on electric discharge machining of cooling holes in superalloy IN718
- Vol. 31, Issue 2, Pages: 266-273(2016)
- 作者机构：
  
  哈尔滨工业大学机电工程学院,哈尔滨,150001
- 作者简介：
- 基金信息：
- DOI：10.13224/j.cnki.jasp.2016.02.002
  CLC：
- Published：2016
- 稿件说明：
移动端阅览
郭永丰, 张国伟, 王力, 郭本生. 高温合金IN718上气膜冷却孔电火花加工试验[J]. 航空动力学报, 2016, 31(2): 266-273.

doi: 10.13224/j.cnki.jasp.2016.02.002
郭永丰, 张国伟, 王力, 郭本生. 高温合金IN718上气膜冷却孔电火花加工试验[J]. 航空动力学报, 2016, 31(2): 266-273. DOI： 10.13224/j.cnki.jasp.2016.02.002.

doi: 10.13224/j.cnki.jasp.2016.02.002 DOI：

摘要

针对高温合金IN718上ø0.5mm气膜冷却孔的加工

采用煤油中旋转电极内冲液电火花成型加工方法

利用正交试验设计方法对试验进行设计分析

分析峰值电流、脉宽、占空比和冲液压强4个因素对材料去除率和电极相对损耗的影响

基于正交试验结果建立综合评分公式

选择最优加工参数.研究结果表明

峰值电流对材料去除率的影响最明显

其次为冲液压强和占空比

脉宽对材料去除率的影响很小;峰值电流对电极相对损耗的影响最明显

其次为冲液压强

占空比和脉宽对电极相对损耗的影响很小;最优的加工参数峰值电流为8A、脉宽为130μs、占空比为0.35、冲液压强为5MPa

对该参数进行加工试验研究

与分析结果一致.

Abstract

Processing methods of electrical discharge machining (EDM) using inner jet liquid rotating electrodes under the kerosene liquid about ø0.5mm small holes on superalloy IN718 was proposed. The effects of process parameters of EDM

such as peak current

pulse on time

duty cycle and hydraulic pressure

on the material removal rate and the electrode relative-wear were studied using orthogonal design. Comprehensive formula about the material removal rate and the electrode relative-wear based on orthogonal experiment was established to choose the best processing parameters. The analysis of the results shows that the influence of peak current on the material removal is most obvious followed by the hydraulic pressure and duty cycle. The influence of pulse on time on the material removal rate is not significant; the influence of peak current on the electrode relative-wear is most obvious

followed by the hydraulic pressure. The influences of the pulse on time and the duty cycle on the electrode relative-wear are not significant; the optimization parameter group is the peak current 8A

pulse on time 130μs

duty cycle 0.35

and hydraulic pressure 5MPa. This is the optimum parameter group obtained by experimental study.

关键词

Keywords

references

Views

511

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Impact factors to friction characteristics of space lubricating oil No.4116

Structural design optimization method and program implementation for a hollow fan blade

Structural optimization of hollow fan blade based on orthogonal experimental design

基于三维接触摩擦单元的套齿连接解析建模研究

考虑多源不确定性的复合材料风扇叶片高周疲劳失效概率评估

Related Author

WANG Yan-shuang

LI Gang

CHENG Jun-wei

YANG Jian-qiu

WANG Yan-rong

Related Institution

Tianjin Key Laboratory of High Speed Cutting and Precision Machining, College of Mechanical Engineering, Tianjin University of Technology and Education

School of Mechanical Engineering, Tianjin University

School of Jet Propulsion, Beijing University of Aeronautics and Astronautics

AI问答

Postal code：100079
Tel：（010）53879206 Email：tmw@bjxintong.com.cn
Technical support is provided by Beijing Founder electronics co., LTD 京ICP备09082226号-64 京公网安备11010602201714号
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰