Hydrodynamical simulation of equal channel multiple angular extrusion through the U-shaped tapered die

Abstract


The present article is focused on the study of local flow dynamics and the character of formation of rotary modes of deformation during Equal Channel Multiple Angular Extrusion of workpiece through the U-shaped tapered die. The present local flow problem through the U-shaped tapered die was analyzed with an introduction of physical simulation methods and numerical fluid dynamics simulation techniques. The computational approach has been grounded on the basis of the numerical finite difference solution of boundary value problem for Navier-Stokes equations in the curl transfer form for the local viscous flow of incompressible Newtonian continuum through the U-shaped tapered die. Derived research results allow us to draw a conclusion that the design geometrical implementation of parallel slants within 2-turn U-shaped tapered die provides the localization of maximal tangential stresses within workpiece volume just in the vicinity of these parallel slants during Equal Channel Multiple Angular Extrusion of workpiece through the U-shaped tapered die.

About the authors

A. V Perig

Donbass State Engineering Academy, Kramatorsk, Ukraine

Email: olexander.perig@gmail.com
84313, Ukraine, Donetsk Region, Kramatorsk, Shkadinova, 72 Candidate of Technical Sciences, Associate Professor, Donbass State Engineering Academy

N. N Golodenko

Donbass State Engineering Academy, Kramatorsk, Ukraine

Email: nik_nik_ gold@mail.ru
86123, Ukraine, Makeyevka, Derzhavin st., 2 Candidate of Physical and Mathematical Sciences, Associate Professor, Donbass National Academy of Civil Engineering and Architecture

A. A Zverev

Donbass State Engineering Academy, Kramatorsk, Ukraine

Email: zver-sasha@yandex.ru
84313, Ukraine, Donetsk Region, Kramatorsk, Shkadinova, 72 Engineer, Donbass State Engineering Academy

A. A Gubenko

Donbass State Engineering Academy, Kramatorsk, Ukraine

Email: ronaldo-roney7@mail.ru
84313, Ukraine, Donetsk Region, Kramatorsk, Shkadinova, 72 Applicant, Donbass State Engineering Academy

S. O Yudin

Donbass State Engineering Academy, Kramatorsk, Ukraine

Email: judstas@rambler.ru
84313, Ukraine, Donetsk Region, Kramatorsk, Shkadinova, 72 Applicant, Donbass State Engineering Academy

A. M Boyko

Donbass State Engineering Academy, Kramatorsk, Ukraine

84313, Ukraine, Donetsk Region, Kramatorsk, Shkadinova, 72 Applicant, Donbass State Engineering Academy

References

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  2. Периг А.В., Голоденко Н.Н. О динамических особенностях вязкого течения полимеров при равноканальном многоугловом прессовании через штамп с подвижной стенкой // Вестник Перм. нац. исслед. политехн. ун-та. Механика. - 2012. - № 3. - С. 149-176.
  3. Кинематические особенности вязкого течения аморфного материала при равноканальном многоугловом прессовании через двухповоротный прямоугольный штамп / А.В. Периг, Н Н. Голоденко, Я.Г. Жбанков, И.И. Бойко, А.А. Ситник // Письма о материалах. - 2011. - Т. 1, № 4. - С. 217-221.
  4. Физическое моделирование равноканального многоуглового прессования через двухповоротный прямоугольный штамп / А.В. Периг, И.И. Бойко, А.А. Ситник, И.А. Матвеев, С.В. Подлесный, С.И. Бондаренко // Кузнечно-штамповочное производство. Обработка материалов давлением. - 2012. - № 5. - С. 23-27.

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