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Technical gazette, Vol. 27 No. 4, 2020.

Original scientific paper

https://doi.org/10.17559/TV-20190621105149

Optimization of Machining Parameters Using the Taguchi and ANOVA Analysis in the Face Milling of Aluminum Alloys AL7075

Borislav Savković orcid id orcid.org/0000-0002-9037-2179 ; University of Novi Sad, Faculty of Technical Sciences, Trg Dositeja Obradovića 6, 21000 Novi Sad, Serbia
Pavel Kovač orcid id orcid.org/0000-0002-5224-4002 ; University of Novi Sad, Faculty of Technical Sciences, Trg Dositeja Obradovića 6, 21000 Novi Sad, Serbia
Antun Stoić ; Mechanical Engineering Faculty in Slavonski Brod, Trg Ivane Brlić Mažuranić 2, 35000 Slavonski Brod, Croatia
Branislav Dudić orcid id orcid.org/0000-0002-4647-6026 ; Comenius University in Bratislava, Faculty of Management, Odbojárov 10, P.O.BOX 95 820 05 Bratislava 25, Slovak Republic

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Abstract

This paper examines the influence of the cutting parameters on the cutting forces and the surface roughness at the face milling process when machining aluminum alloy 7075 is obtained by the new SSM casting process. The parameters of the milling process are the cutting speed, the feed per tooth and the depth of cut. The experiments
were performed according to the Taguchi method according to the L9 plan and the factors varied at three levels. For analysis of the effects of these parameters S/N ratio is used. In addition, ANOVA analysis was performed, i.e. analysis of the variance of the selected parameters. The analysis of the results shows that the optimal combination for the cutting force is the choice of a minimum level for all tested parameters. In contrast, for average arithmetic roughness, the optimal processing regime is achieved with minimum values for cutting speed and feed per tooth, whilst it is preferable to choose the cutting depth at the median level for the observed range. In addition, the study shows that the Taguchi method is suitable for solving the problem, where the research was carried out with a minimum number of tests compared to a full factorial experimental plan.

Keywords

aluminum alloy; ANOVA analysis; cutting parameters; Taguchi method

Hrčak ID:

242325

URI

https://hrcak.srce.hr/242325

Publication date:

15.8.2020.

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