Experimental Research on Micro-Pit Array by Jet Electrochemical Machining on GH4169 Nickel-Based Superalloy

ZHANG Yanan; NIU Shen; MING Pingmei; WANG Siru; DING Dafu; QIN Ge

doi:10.16080/j.issn1671-833x.2024.18.054

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Experimental Research on Micro-Pit Array by Jet Electrochemical Machining on GH4169 Nickel-Based Superalloy

更新时间：2025-10-30

- Experimental Research on Micro-Pit Array by Jet Electrochemical Machining on GH4169 Nickel-Based Superalloy
- Aeronautical Manufacturing Technology Vol. 67, Issue 18, Pages: 54-59(2024)
- 作者机构：
  
  1. 河南理工大学,焦作,454000
  2. 洛阳乐方重工机械有限公司,洛阳,471300
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2024.18.054
  CLC：
- Published：2024
- 稿件说明：
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张亚楠，牛屾，明平美，王思儒，丁达付，秦歌. GH4169镍基高温合金射流电解加工微坑阵列试验研究[J]. 航空制造技术, 2024, 67(18): 54-59.

ZHANG Yanan, NIU Shen, MING Pingmei, WANG Siru, DING Dafu, QIN Ge. Experimental Research on Micro-Pit Array by Jet Electrochemical Machining on GH4169 Nickel-Based Superalloy[J]. Aeronautical Manufacturing Technology, 2024, 67(18): 54-59.
张亚楠，牛屾，明平美，王思儒，丁达付，秦歌. GH4169镍基高温合金射流电解加工微坑阵列试验研究[J]. 航空制造技术, 2024, 67(18): 54-59. DOI： 10.16080/j.issn1671-833x.2024.18.054.

ZHANG Yanan, NIU Shen, MING Pingmei, WANG Siru, DING Dafu, QIN Ge. Experimental Research on Micro-Pit Array by Jet Electrochemical Machining on GH4169 Nickel-Based Superalloy[J]. Aeronautical Manufacturing Technology, 2024, 67(18): 54-59. DOI： 10.16080/j.issn1671-833x.2024.18.054.

摘要

表面微坑阵列在机械密封、摩擦磨损、表面润滑、传热散热等方面有巨大作用。为了能在GH4169镍基高温合金上射流电解加工微坑阵列，通过测试合金在不同溶液中的极化曲线，优选了射流电解加工合金的电解液，并在此基础上设计试验，探究了加工电压、射流速度对射流电解加工微坑的影响规律，并通过优选工艺参数加工出微坑阵列。最后，以质量分数10%的NaNO

溶液为电解液，以加工电压25 V、射流速度10 m/s加工出平均深径比为0.376、深径比标准偏差为0.004372的加工精度高、一致性好的微坑阵列结构。

Abstract

The surface micro-pit array plays a huge role in mechanical sealing

friction and wear

surface lubrication

heat transfer and heat dissipation. To be able to jet electrochemical machining micro-pit array on GH4169 nickel-based superalloy

the polarization curves of the alloy in different electrolytes were tested and the electrolyte was optimized. Then

the influence of processing voltage and jet velocity on the micro-pits by jet electrochemical machining was explored

and the micro-pit array was processed by optimizing the process parameters. Finally

using mass fraction 10% NaNO

as the electrolyte

processing voltage of 25 V

and jet velocity of 10 m/s

the micro-pit array with high precision and good consistency is fabricated. The aspect ratio is 0.376 and the standard deviation of the asp

ect ratio is 0.004372 for the micropit array.

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