GH4169镍基合金短电弧加工温度场数值模拟

李雪芝 1; 周建平 1; 王恪典 1; 2; 许燕 1; 吴天博 3

doi:10.7652/xjtuxb201808005

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GH4169镍基合金短电弧加工温度场数值模拟

更新时间：2025-07-09

- GH4169镍基合金短电弧加工温度场数值模拟
- Numerical Simulation for Temperature Field of Short Electric Arc Milling Process of Nickel-Based Alloy GH4169
- 西安交通大学学报 2018年52卷第8期页码：30-36+116
- 作者机构：
  
  新疆大学机械工程学院,乌鲁木齐,830047
- 作者简介：
- 基金信息：
  
  : 2017-11-08。作者简介: 李雪芝(1989—),博士生;王恪典(通信作者),男,教授,博士生导师。基金项目: 国家自然科学基金资助项目(51765063)
- DOI：10.7652/xjtuxb201808005
  中图分类号： TH161
- 网络首发：2018-08-10，
  
  纸质出版：2018
- 稿件说明：
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李雪芝 1, 周建平 1, 王恪典 1, 等. GH4169镍基合金短电弧加工温度场数值模拟[J]. 西安交通大学学报, 2018,52(8):30-36+116.

Numerical Simulation for Temperature Field of Short Electric Arc Milling Process of Nickel-Based Alloy GH4169[J]. 2018, 52(8): 30-36+116.
李雪芝 1, 周建平 1, 王恪典 1, 等. GH4169镍基合金短电弧加工温度场数值模拟[J]. 西安交通大学学报, 2018,52(8):30-36+116. DOI： 10.7652/xjtuxb201808005.

Numerical Simulation for Temperature Field of Short Electric Arc Milling Process of Nickel-Based Alloy GH4169[J]. 2018, 52(8): 30-36+116. DOI： 10.7652/xjtuxb201808005.

摘要

以镍基合金GH4169为研究对象

开展了短电弧铣削过程的数值模拟研究。通过选用合适的高斯面热源、体热源以及热边界条件

建立了GH4169镍基合金短电弧加工温度场的数学模型

得到了短电弧铣削过程熔池形成、温度等值线及温度场分布规律。由温度等值线确定了短电弧放电通道与基体材料形成的3个区域(气化区、熔融凝固区、热影响区)。同时

在相同工艺参数下进行短电弧铣削工艺试验

利用红外热成像仪监测整个加工过程。通过FLIR R&D Software处理热成像仪监测数据

并获取三节点的热循环曲线

其温度变化趋势与仿真结果吻合较好

由温度成像云图观测放电通道与基体形成的各区域范围与温度等值线基本吻合

验证了所建立模型的正确性

为短电弧铣削加工过程中去除特性、表面质量、微观形貌等基础问题提供理论依据。

Abstract

Taking the nickel-based alloy GH4169 as the research object

numerical simulation of short electric arc milling process was carried out. A mathematical model of temperature field in short electric arc milling of nickel-based alloy GH4169 was established by selecting suitable Gaussian surface heat source

body heat source and thermal boundary conditions

and then the formation of the molten pool

temperature contour and temperature distribution were obtained in the short electric arc milling process. According to the temperature contour

the three regions(gasification zone

melt-solidification zone and heat-affected zone)formed between the short arc discharge channel and the matrix material were determined. The short electric arc milling tentative was carried out with the same process parameters

and the whole process was monitored by infrared thermal imager. The monitoring data was processed by FLIR R&D software

and the three-node thermal cycle curve was extracted. The temperature trend coincides well with the simulations. The range of each region formed between the discharge channel and the substrate observed on the temperature imaging cloud map is essentially consistent with the temperature contour

which verifies the correctness of the established model and thus provides a theoretical basis for basic issues such as removal characteristics

surface quality

and micro-topography in the short electric arc milling process.

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