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ArticleName Influence of magnetic-abrasive processing on roughness of flat products made of AMts grade aluminum alloy
DOI 10.17580/tsm.2022.07.09
ArticleAuthor Maksarov V. V., Keksin A. I., Filipenko I. A.

Saint Petersburg Mining University, Saint Petersburg, Russia:

V. V. Maksarov, Professor, Head of the Chair for Mechanical Engineering, Dean of the faculty of Mechanical Engineering, Doctor of Technical Sciences, e-mail:
A. I. Keksin, Associate Professor, Chair for Mechanical Engineering, Candidate of Technical Sciences, e-mail:
I. A. Filipenko, Postgraduate Student, Chair for Mechanical Engineering, e-mail:


The widespread use of AMts grade aluminum alloy in industry is due to its physical and mechanical properties and high weldability. For most products, high requirements are placed on surface roughness, including the surface of the edges of products subjected to special preparation before welding to ensure a high-quality welded joint. However, achieving the required roughness values is technologically quite laborious. As a finishing method of processing in order to ensure a given value of roughness, the method of magnetic-abrasive processing (MAP) is widely used, which makes it possible to significantly reduce the surface roughness. However, the dependence of the process of forming the surface roughness of products made of the AMts grade aluminum alloy on technological parameters of processing has not been previously established. In this regard, the article presents the results of experimental studies of the influence of MAP factors (the value of magnetic induction B, T; processing time t, min; workpiece rotation frequency n, min–1; workpiece feed along the pole pieces S, mm/min) on the formation surface roughness (Ra) of flat products made of AMts grade aluminum alloy. Based on the research results, polynomial functions have been compiled that enable to estimate the degree of influence of each processing parameter on surface roughness, as well as to determine the rational values of these parameters necessary to achieve its required level. The selected rational values make it possible to form the surface roughness of pro ducts made of AMts grade aluminum alloy in the range of Ra = 0.23÷0.31 μm, which is 6 times lower than the original one. A mathematical model has been created for the formation of surface roughness depending on the processing parameters, which makes it possible to comprehensively assess the effect of these parameters on the process. The model confirms the conclusion made on the basis of the analysis of polynomial functions and shows that the greatest influence on the formation of surface roughness is exerted by the feed rate of the workpiece along the pole-pieces and the magnitude of the magnetic induction.

keywords AMts aluminum alloy, surface roughness, magnetic abrasive processing, abrasive processing in a magnetic field, flat surface processing

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