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Influence of anode immersion speed on current and power in plasma electrolytic polishing
ID Valentinčič, Joško (Author), ID Zeidler, Henning (Author), ID Böttger, Toni (Author), ID Jerman, Marko (Author)

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Abstract
Plasma electrolytic polishing (PeP) is mainly used to improve the surface quality and thus the performance of electrically conductive parts. It is usually used as an anodic process, i.e., the workpiece is positively charged. However, the process is susceptible to high current peaks during the formation of the vapour–gaseous envelope, especially when polishing workpieces with a large surface area. In this study, the influence of the anode immersion speed on the current peaks and the average power during the initialisation of the PeP process is investigated for an anode the size of a microreactor mould insert. Through systematic experimentation and analysis, this work provides insights into the control of the initialisation process by modulating the anode immersion speed. The results clarify the relationship between immersion speed, peak current, and average power and provide a novel approach to improve process efficiency in PeP. The highest peak current and average power occur when the electrolyte splashes over the top of the anode and not, as expected, when the anode touches the electrolyte. By immersion of the anode while the voltage is applied to the anode and counterelectrode, the reduction of both parameters is over 80%.

Language:English
Keywords:plasma electrolytic polishing, vapour–gaseous envelope, immersion speed, peak current, average power, process initialisation
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Publication status:Published
Publication version:Version of Record
Year:2024
Number of pages:13 str.
Numbering:Vol. 15, iss. 6, art. 783
PID:20.500.12556/RUL-158641 This link opens in a new window
UDC:621.7+621.9
ISSN on article:2072-666X
DOI:10.3390/mi15060783 This link opens in a new window
COBISS.SI-ID:199241731 This link opens in a new window
Publication date in RUL:18.06.2024
Views:263
Downloads:64
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Record is a part of a journal

Title:Micromachines
Shortened title:Micromachines
Publisher:Multidisciplinary Digital Publishing Institute (MDPI)
ISSN:2072-666X
COBISS.SI-ID:523276825 This link opens in a new window

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Language:Slovenian
Keywords:plazemsko elektrolitsko poliranje, parno-plinska ovojnica, hitrost potapljanja, vršni tok, povprečni tok, inicializacija procesa

Projects

Funder:EC - European Commission
Funding programme:HE
Project number:101079481
Name:Strengthening the Excellence of Additive Manufacturing Capabilities
Acronym:SEAMAC

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P2-0248
Name:Inovativni izdelovalni sistemi in procesi

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