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- Title
Surface Treatment of AISI 304 Stainless Steel by GOV (Flow Peening) Process.
- Authors
Sahin, Burak; Gov, Ibrahim; Kalak, Murat; Koca, Mustafa Sait; Gov, Kursad
- Abstract
AISI 304 stainless steel has extensive applications in different industries such as medical, automobile and molding due to its excellent mechanical features of poor thermal conductivity, high strength at high temperatures, and high corrosion resistance. However, it is difficult-to-process by traditional machining. Therefore, non-traditional surface treatment and finishing processes such as shot peening and abrasive-based methods are more applicable for this material. Considering the advantages of strength improvement and surface quality for shot peening and abrasive flow machining respectively, better advantages of these two processes are combined into a newly developed and patented process called as GOV (flow peening) process. In this paper, the effects of GOV process parameters (number of cycles, steel ball size, media ratio) on the surface quality of the AISI 304 in terms of surface roughness, white layer and material removal already pre-processed by electric discharge machining (EDM) were investigated. Surface finishing with GOV process decreases surface roughness Ra value from 2.34 µm to 0.40 µm by removing micro-level chips from specimen surface up to 11.5 mg. This material removal amount is supported by SEM images. It is obvious to understand that white layer formed owing to nature of EDM process is entirely removed from surface.
- Subjects
SURFACE preparation; PEENING; STAINLESS steel; SHOT peening; SURFACE finishing; ELECTRIC metal-cutting
- Publication
Arabian Journal for Science & Engineering (Springer Science & Business Media B.V. ), 2024, Vol 49, Issue 2, p1869
- ISSN
2193-567X
- Publication type
Article
- DOI
10.1007/s13369-023-08032-z