Vpliv časa obdelave in napetosti na kakovost površine pri plazemskem elektrolitskem poliranju

Blanc, Katja (author), Valentinčič, Joško (mentor), Sabotin, Izidor (comentor)

Pri plazemskem elektrolitskem poliranju opazujemo vpliv spreminjanja delovnih parametrov obdelovalnega časa in napetosti na kvaliteto obdelave vzorcev iz nerjavnega jekla. Cilj je bil določiti optimalne parametre za obdelavo, kjer je kvaliteta površine čim boljša, hkrati pa da ne pride do prekomernega odnašanja materiala na robovih vzorcev. Vzorci so bili izrezani s pomočjo vodnega curka in peskani za enotno izhodiščno stanje. Koncentracija amonijevega sulfata (0,3 M) in temperatura elektrolita (75 °C) sta bili konstantni. Meritve mase in debeline vzorcev, parametrov hrapavosti ter zaokrožitve robov so bile izvedene pred in po poliranju. Najboljše rezultate poliranja smo opazili pri napetostih 340 in 360 V in daljšem obratovalnem času 8 minut, kjer je učinkovitost poliranja visoka, material pa je enakomerno odstranjen, saj ne prihaja do pretiranega odnašanja materiala na robovih vzorcev.

• Language: Slovenian
• Keywords: plazemsko elektrolitsko poliranje, obdelovalni čas, napetost, površinska hrapavost, kvaliteta površine
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [K. Blanc]
• Year: 2026
• Number of pages: XIII, 34 f.
• PID: 20.500.12556/RUL-186681
• UDC: 621.9.048:621.7.015(043.2)
• COBISS.SI-ID: 290011651
• Publication date in RUL: 04.09.2026

Secondary language

• Language: English
• Title: Influence of machining time and voltage on surface quality in plasma electrolytic polishing

Abstract

In plasma electrolytic polishing, we observe the effect of changing the operating parameters of processing time and voltage on the quality of processing of stainless steel samples. The goal was to determine the optimal processing parameters, where the surface quality is as good as possible, while at the same time avoiding excessive material removal at the edges of the samples. The samples were cut using a water jet and sandblasted to a uniform initial state. The concentration of ammonium sulfate (0.3 M) and the temperature of the electrolyte (75 °C) were constant. Measurements of the mass and thickness of the samples, roughness parameters and edge rounding were performed before and after polishing. The best polishing results were observed at voltages of 340 and 360 V and a longer operating time of 8 minutes, where the polishing efficiency is high and the material is removed evenly, since excessive material removal at the edges of the samples does not occur.

• Keywords: plasma electrolytic polishing, processing time, voltage, surface roughness, surface quality