Evaluation of plasma cleaning efficiency for surface contaminant removal from AA7075 chips
Chenyang Han, Enrico Simonetto, Andrea Ghiotti, Stefania Bruschi
Abstract. This study presents an experimental method to evaluate the effectiveness of plasma cleaning for removing surface contaminants, including lubricants and oxides, from AA7075 chips obtained in machining operations. A lubricant mixture (3% oil and 97% water) and surface oxides were characterized using various analytical techniques to assess the cleaning performance. The findings demonstrate the potential of plasma treatment as an efficient surface-cleaning method, particularly in enhancing recycling processes for solid metal recovery. Plasma cleaning was shown to significantly reduce organic contamination and oxide layers on the surface of aluminum alloy metal chips. Interestingly, the substrate material (aluminum or plastic) did not significantly influence the cleaning effectiveness. Furthermore, variations in processing durations, from shorter cycles (10 steps) to longer cycles (100 steps), yielded comparable cleaning results. These insights prove the capabilities of plasma cleaning as a viable technique for industrial applications requiring efficient surface decontamination.
Keywords
Aluminum Alloys, Metal Chips Cleaning, Plasma Cleaning
Published online 5/7/2025, 7 pages
Copyright © 2025 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Chenyang Han, Enrico Simonetto, Andrea Ghiotti, Stefania Bruschi, Evaluation of plasma cleaning efficiency for surface contaminant removal from AA7075 chips, Materials Research Proceedings, Vol. 54, pp 2527-2533, 2025
DOI: https://doi.org/10.21741/9781644903599-273
The article was published as article 273 of the book Material Forming
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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