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Сообщения, помеченные ‘Zaharov A.A.’

17
Jan

Aborkin A.V., Zaharov A.A., Babin D.M., Orekhov O.P. Calculation and experimental study of power parameters of the continuous channel-angular pressing of aluminum

Calculation and experimental study of power parameters of the continuous channel-angular pressing of aluminum

Aborkin A.V., Zaharov A.A., Babin D.M., Orekhov O.P.

The paper deals with the issues of determining the effect of process parameters (such as rotor speed and friction coefficient) on the power parameters of the continuous channel-angular pressing of aluminum. The technique to carry out the experiment has been developed. Experimental data on changes in power parameters of the continuous channel-angular pressing of aluminum has been received. A simulation model for qualitative and quantitative process of the continuous channel-angular pressing of AD0 aluminum alloy has been developed and presented in numbers. The simulation model has been tested for its accuracy by comparing the calculated and experimental data. The estimation of process parameters effect on power parameters of the continuous channel-angular pressing has been obtained. The calculations have proved that increasing the rotor speed can result in 7% increase in the torque value and 20% friction coefficient increase.

Keywords: continuous channel-angular pressing, intensive plastic deformation, power parameters.

References

  1. Cho J.R., Jeong H.S. Parametric investigation on the surface defect occurrence in CONFORM process by the finite element method // Journal of Materials Processing Technology. Vol. 104, 2000. – P. 236-243.
  2. Kim Y.H., Cho J.R., Kim K.S., Jeong H.S., Yoon S.S. A study of the application of upper bound method to the CONFORM process // Journal of Materials Processing Technology, Vol. 97, 2000. – P.153-157.

«Engineering industry and life safety» №3 (17), 2013. Pages: 47-51

Download full text:Aborkin A.V., Zaharov A.A., Babin D.M., Orekhov O.P. Calculation and experimental study of power parameters of the continuous channel-angular pressing of aluminum

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Aborkin Artemiy Vitaljevich – Ph.D., Vladimir State University, Vladimir, Russia. E-mail: aborkin@vlsu.ru

Zaharov Aleksandr Andreevich – Teacher, Vladimir State University, Vladimir, Russia. E-mail: zahar21157@yandex.ru

Babin Dmitriy Michaylovich – Teacher, Vladimir State University, Vladimir, Russia. E-mail: necros-m2@yandex.ru

Orekhov Oleg Pavlovich – Student, Vladimir State University, Vladimir, Russia. E-mail: dante123473@ya.ru

17
Jan

Aborkin A.V., Babin D.M., Zaharov A.A., Elkin A.I. Stand development and experimental research of the process of equal channel angular pressing aluminum alloy blanks

Stand development and experimental research of the process of equal channel angular pressing aluminum alloy blanks

Aborkin A.V., Babin D.M., Zaharov A.A., Elkin A.I.

The paper deals with the issues concerning stand development and methods of carrying out experimental equal channel angular pressing AD0 aluminum alloy blanks. Research on the effect of equipment heating temperature on the energy-power costs, when pressed, is considered as well. The experimental pressing of blanks of 40 mm length and 5.5 mm square section is performed under the following process parameters: channel intersection angle Ф=120 °, channel crossing radius r=3 mm, equipment temperature θ = 20-200 ° C, pressing speed v= 10 mm/s. The experiments have provided data on the changes in power parameters pressing process. Pressing process characteristics are based on the analysis of force change chart. The blank temperature has a significant effect on the pressing force.

Keywords: equal channel angular pressing, intensive plastic deformation, energy-power costs, temperature.

References

  1. Valiev R.Z., Aleksandrov I.V. Bulk nanostructured metallic materials: preparation, structure and properties. – Moscow: ICC Akademkniga, 2007. – 398 p.
  2. Dobatkin S.V. Mechanical properties of ultrafine-grained aluminium alloys and potentialities of their usage // Technology of light alloys, 2011, №3. – P. 5-17.

«Engineering industry and life safety» №3 (17), 2013. Pages: 42-46

Download full text:Aborkin A.V., Babin D.M., Zaharov A.A., Elkin A.I. Stand development and experimental research of the process of equal channel angular pressing aluminum alloy blanks

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Aborkin Artemiy Vitaljevich – Ph.D., Vladimir State University, Vladimir, Russia. E-mail: aborkin@vlsu.ru

Babin Dmitriy Michaylovich – Teacher, Vladimir State University, Vladimir, Russia. E-mail: necros-m2@yandex.ru

Zaharov Aleksandr Andreevich – Teacher, Vladimir State University, Vladimir, Russia. E-mail: zahar21157@yandex.ru

Elkin Aleksey Ivanovich – Ph.D., Vladimir State University, Vladimir, Russia. E-mail: elkin@vlsu.ru

21
Jan

Aborkin A.V., Zaharov A.A., Zhukov I.O. Development of methodology for calculating thermal stress state tool for continuous pressing

Development of methodology for calculating thermal stress state tool for continuous pressing

Aborkin A.V., Zaharov A.A., Zhukov I.O.

In this paper considers method of calculating the thermal stress state of the tool for continuous pressing. Set one of the major defects, limiting the durability of the tool that occurs during operation. The presented method fo-cuses on the study of the thermal stress state in order to forecast locations of cracks. Realization techniques in stages using simulation models. Numerical realization of simulation models pressing tool made through software package ANSYS Workbench. The examples of the results of calculation of temperature and pressure for the tool, and the results of an experiment to determine the temperature. A comparison of the calculated and experimental values of the temperature. The good agreement between the calculated and experimental data. This fact allows us to recommend the methodology developed for the design of rational design tool for continuous pressing.

Keywords: continuous pressing, stress, finite element method, durability, pressing tools.

References

  1. Belevich A.V. Simulation of temperature and heavy duty design improvement tool guide piercing mill // Production of rolled, 2006, № 9. – P. 23-27.
  2. Belevich A.V. Improving the efficiency of hot press forming by improving, operating conditions and design tool for the development of mass production of precision steel profiles in engineering. Diss. doctor. tech. science. Moscow, MISA. 2000. – 320 p.
  3. Belevich A.V. Modelling thermally stressed condition of potentially hazardous industrial facilities  // Security of labor in the industry, 2007, № 3. – P. 37-39.
  4. GOST 12.4.045 – 87. «SSBT. Means of protection against infrared radiation. Classification. General requirements. – State Standard of the USSR, 1983. – 19 p.
  5. Kutateladze S.S. Fundamentals of the theory of heat transfer. – L.: Naval Academy shipbuilding and weapons of A.N. Krylov, 1954.

«Engineering industry and life safety» №3 (13), 2012. Pages: 36-41

Download full text:Aborkin A.V., Zaharov A.A., Zhukov I.O. Development of methodology for calculating thermal stress state tool for continuous pressing

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Aborkin Artemiy Vitaljevich – Ph.D., Vladimir State University, Vladimir, Russia. E-mail: aborkin@vlsu.ru

Zaharov Aleksandr Andreevich – assistant, Vladimir State University, Vladimir, Russia. E-mail: zahar21157@yandex.ru

Zhukov Ilja Olegovich – student, Vladimir State University, Vladimir, Russia. E-mail: dante123473@ya.ru

21
Jan

Aborkin A.V., Babin D.M., Zaharov A.A., Elkin A.I. Computer modeling of equal channel angular pressing

Computer modeling of equal channel angular pressing

Aborkin A.V., Babin D.M., Zaharov A.A., Elkin A.I.

This paper discusses issues related to the process of creating a mathematical model of equal-channel angular pressing of aluminum alloy billets Al+1.9%Mg and study the effects of friction during the pressing process for energy-power costs and strain state of the workpiece material. Calculations conform channel angular pressing cylindrical workpieces 90 mm and a diameter of 5 mm with the following parameters: the angle of intersection of channels F-90 °, the radius at the intersection of channels r – 0.1 mm, temperature workpiece and tool corresponded t = 20 ° C, pressing speed ʋ-10 mm / s, the coefficient of friction of μ = 0, 0.25, 0.5 and 0.75. Shown to increase the coefficient of friction affects the distribution of strains in the workpiece material and energy-power costs.

Keywords: computer modeling, equal channel angular pressing, severe plastic deformation, energy-power cost-stressed state.

References

  1. Segal V. M., USSR Patent No. 575892 (1977).
  2. Segal V. M., Reznikov V. I., Drobyshevskiy A. E., Kopylov V. I., Russ. Metall, 1, 99 (1981).
  3. Kolmogorov V.L. Stress, deformation, fracture. Metallurgy. – М. 1970.

«Engineering industry and life safety» №3 (13), 2012. Pages: 31-35

Download full text:Aborkin A.V., Babin D.M., Zaharov A.A., Elkin A.I. Computer modeling of equal channel angular pressing

View russian version

Aborkin Artemiy Vitaljevich – Ph.D., Vladimir State University, Vladimir, Russia. E-mail: aborkin@vlsu.ru

Babin Dmitriy Michaylovich – assistant, Vladimir State University, Vladimir, Russia. E-mail: necros-m2@yandex.ru

Zaharov Aleksandr Andreevich – assistant, Vladimir State University, Vladimir, Russia. E-mail: zahar21157@yandex.ru

Elkin Aleksey Ivanovich – Ph.D., Vladimir State University, Vladimir, Russia. E-mail: elkin@vlsu.ru