Vibratory Machining Effect on the Properties of the Aaluminum Alloys Surface

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Abstract

The article presents an example of finishing treatment for aluminum alloys with the use of vibration machining, with loose abrasive media in a closed tumbler. For the analysis of selected properties of the surface layer prepared flat samples of aluminum alloy PA6/2017 in the state after recrystallization. The samples in the first stage were subjected to a treatment of deburring using ceramic media. In a second step polishing process performed with a strengthening metal media. In addition, for comparative purposes was considered. only the case of metal polishing. The prepared samples were subjected to hardness tests and a tangential tensile test. As a result of finishing with vibratory machining, it was possible to remove burrs, flash, rounding sharp edges, smoothing and lightening the surface of objects made. The basic parameters of the surface geometry were obtained using the Talysurf CCI Lite - Taylor Hobson optical profiler. As a result of the tests it can be stated that the greatest reduction of surface roughness and mass loss occurs in the first minutes of the process. Mechanical tests have shown that the most advantageous high values of tensile strength and hardness are obtained with two-stage vibration treatment, - combination of deburring and polishing. Moreover the use of metal media resulted in the strengthening of the surface by pressure deburring with metal media.

[1] Mola, R., Bucki, T. & Dziadoń, A. (2017). Microstructure of the bonding zone between AZ91 and AlSi17 formed by compound casting. Archives of Foundry Engineering. 17(1), 202-206. DOI: 10.1515/afe-2017-0036.

[2] Patejuka, A. & Poniatowska, M. (2007). Effects of finishing on the surface quality of precision castings. Archives of Foundry Engineering. 7(1), 93-96.

[3] Konieczny, M. (2013). Mechanical properties and deformation behavior of laminated Ni-(Ni2Al3+NiAl3) and Ni-(Ni3Al+NiAl) composites. Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing. 586(1), 11-18.

[4] Bańkowski, D., Spadło, S. (2015). Influence of the smoothing conditions in vibro-abrasive finishing and deburring process for geometric structure of the surface machine parts made of aluminum alloys EN AW2017, Proceedings of 24th International Conference on Metallurgy and Materials, METAL 2015 (pp. 1062-1068).

[5] Bańkowski, D., Krajcarz D., Młynarczyk, P. (2017). Deburring and smoothing the edges using vibro-abrasive machining. 12th International Scientific Conference of Young Scientists on Sustainable, Procedia Engineering; Volume: 192 (pp. 28-33).

[6] Hlavac, L., Krajcarz, D., Hlavacova, I. & Spadło, S. (2017). Precision comparison of analytical and statistical-regression models for AWJ cutting. Precision Engineering. Journal of the International Societies for Precision Engineering and Nanotechnology. 50(October), 148-159. DOI: 10.1016/ j.precisioneng.2017.05.002.

[7] Oryński, F. & Synajewski, R. (2010). Surface roughness testing of conventionally treated surfaces and vibration on a surface grinder. Mechanik. 3, 190-192. (in Polish).

[8] Filipowski, R., Marcinak, M. (2000). Machining and erosion techniques. Warszawa: Oficyna Wydawnicza Politechniki Warszawskiej. 304-308. (in Polish).

[9] Starosta, R. (2008). Surface treatment. Gdynia: Wydawnictwo Akademii Morskiej w Gdyni. (in Polish).

[10] Bańkowski, D., Spadło, S. (2006). Influence of the smoothing conditions in vibro-abrasive for technically dry friction the parts made of steel X160CRMOV121. Metal 2016: 25th Anniversary International Conference on Metallurgy And Materials (pp. 1019-1024). WOS:000391251200165

[11] Woźniak, K. (2017). Surface treatment in container smoothers. Warszawa: WNT. (in Polish).

[12] Brinksmeier, E. & Giwerzew, A. (2005). Hard gear finishing viewed as a process of abrasive wear. Wear. 258, 62-69.

[13] Bańkowski, D. & Spadło, S. (2017). The aplication of vibro - abrasive machining for smoothing of castings. Archives of Foundry Engineering. 17(1), 169-173. WOS: 000398158200031.

[14] Rao, Suren B. (2009). Repair of aircraft transmission gears via isotropic superfinishing. Gear Technology. May.

[15] Eric, C., Ames. (2012). Repair of high-value high-demand spiral bevel gears by superfinishing. Gear Technology. October, 50-59.

[16] Davidson, D.A. (2002). Mass Finishing Processes. Metal Finishing Guidebook and Directory. New York. TAM surfaces are Elsevier Science; Published 2002.

[17] Massarsky, M.L., Davidson, D.A. (2002). Turbo-abrasive machining - a new technology for metal and non-metal part finishing. The Finishing Line. Vol. 18 No.4. Dearborn MI: Association of Finishing Processes. Society of Manufacturing Engineers. Oct. 30.

[18] Bankowski, D., Spadlo, S. (2017). Investigations of influence of vibration smoothing conditions of geometrical structure on machined surfaces. 4th International Conference Recent Trends in Structural Materials. Comat 2016; Volume: 179 Article Number: UNSP 012002. DOI.org/10.1088/1757- 899X/179/1/012002.

[19] Kacalak, W. & Tandecka, K., (2012). Effect of superfinishing methods kinematic features on the machined surface. J. Machine Engineering. 4, 35-48.

[20] Gillespie, LK. (1999). Deburring and Edge Finishing Handbook. Society of Manufacturing Engineers.

[21] Hashimura, M., Hassamontr, J. & Dornfeld, D.A. (1999). Effect of in-plane exit angle and rake angles on burr height and thickness in face milling operation transactions of the ASME. Journal of Manufacturing Science and Engineering 121(1), 13-19.

[22] http://riad.usk.pk.edu.pl/~mnykiel/iim/23/dydaktyka/SkrSkry/C_2.html (14.06.2017)

[23] http://www.dostal.com.pl/metale-kolorowe-aluminium.html (14.06.2017)

[24] http://www.rollwasch.it/en. Vibro Dry Experience PL. Rollwasch Italiana S.p.a (14.06.2017)

[25] technical materials from MARDAB, www.mardab.pl (14.06.2017).

[26] Janecki, D., Stępień, K. & Adamczak, S. (2010). Problems of measurement of barrel- and saddle-shaped elements using the radial method. Measurement. 43(5), 659-663.

Archives of Foundry Engineering

The Journal of Polish Academy of Sciences

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CiteScore 2016: 0.42

SCImago Journal Rank (SJR) 2016: 0.192
Source Normalized Impact per Paper (SNIP) 2016: 0.316

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