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Engineering, Energy, Transport AIC

space SCIENTIFIC JOURNALS OF VINNITSA NATIONAL AGRARIAN UNIVERSITY

Issue №: 1(112)

Published: 2021.03.23
DOI: 10.37128/2520-6168-2021-1


Description:
The journal solves the problems of creation and improvement of machinery and technologies for agriculture: 131 - Applied Mechanics, 132 - Materials Science, 133 - Industrial Engineering, 141 - Power Engineering, Electrical Engineering and Electromechanics, 208 - Agricultural Engineering.

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RESEARCH OF PROCESS OF DIVISION OF GRADE ROLLING ON THE MEASURED BLANKS BY METHOD OF BREAKING BEND AT STATIC AND SHOCK LOADING

DOI: 10.37128/2520-6168-2021-1-10
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Sergii Karnaukh – Ph.D., Associate Professor of the Department "Fundamentals of Machine Design"  of the Donbass State Engineering Academy (st. Akademicheskaya, 72, Kramatorsk, 84313, Ukraine, email: k_sergii@i.ua,  https://orcid.org/0000-0003-2878-4065).
Igramotdin Aliiev – Dr Sc. (Eng.), Full Professor; Donbass State Engineering Academy (st. Akademicheskaya, 72, Kramatorsk, 84313, Ukraine, email: igramaliev@gmail.com, https://orcid.org/0000-0002-4248-8214).

Annotation

Research of the process of cold breaking of rolling by bending under static and shock loads was conducted to determine the effect of loading speed on the power parameters of the separation process and the quality of the workpieces. Experimental researches are conducted for the three-point cold breaking by bending of templates from steel of different brands at the static and shock loading with the use of original equipment and rigging. Comparison of maximal force of breaking at the static and shock loading was estimated by the coefficient of dynamic, which for the different brands of steel laid down accordingly: ШХ15 - 0,7; 60С2 - 1,6; 45 - 2,0..2,2; 40Х - 1,8..2,1; 20 - 1,6..1,8 at speed of deformation to 18 m с. At the increase of speed of deformation the coefficient of dynamic grows for materials in the plastic and viscidly-resilient state and diminishes for materials in the fragile state. Than higher plasticity of material of templates, the greater size of coefficient of dynamic.
Obviously, that for the exposure of inclination of materials of templates to fragile destruction it is necessary to apply the higher values of speed of loading. With the growth of speed of deformation geometrical exactness of blanks from the different brands of steels, gets better, but not significant. The most high quality was shown by blanks at the division of standards from fragile and viscoelastic steels: ШХ 15, steel of 60С2, steel 45, steel of 40Х. It is identified that greater part of energy of deformation is spent on an origin and viscid growing up of crack, while energy expended on fragile destruction is insignificant. Got results can be used for the improvement of the technologies of process of division of grade rolling on the measured blanks by the method of the cold breaking by a bend.

Keywords: breaking bend, force, statics, blow, quality, rolling, blanks, dynamic factor

List of references

[1]    Gutknecht, F., Steinbach, F., Hammer, T., Clausmeyer, T., Volk, W., Tekkaya, A.E. (2016). Analysis of shear cutting of dual phase steel by application of an advanced damage model. Procedia Struct. Integr. 2: 1700–1707. https://doi.org/10.1016/j.prostr.2016.06.215. [in English].
[2]    Yadav, S., Feng, G., Sagapuram, D. (2019). Dynamics of shear band instabilities in cutting of metals. CIRP Ann. 68: 45–48. https://doi.org/10.1016/j.cirp.2019.04.030. [in English].
[3]    Finkel, V. M., Rodyukov, G. B., Golovin, Yu. I. (1982). Kholodnaya lomka prokata. Moskva: Metallurgiya. [in Russian].
[4]    Polukhin, P.I., Gorelik, S.S., Voronczov, V.K. (1982). Fizicheskie osnovy` plasticheskoj deformaczii. M.: Metallurgiya. [in Russian].
[5]     Karnaukh, S. G. (2010). Sovershenstvovanie bezotkhodny`kh sposobov razdeleniya sortovogo prokata i oborudovaniya dlya polucheniya zagotovok vy`sokogo kachestva : monografiya. Donbasckaya gosudarstvennaya mashinostroitel`naya akademiya. Kramatorsk. [in Russian].
[6]    Karnaukh, S., Markov, O., Aliieva, L., Kukhar, V. (2020). Designing and researching of the equipment for cutting by breaking of rolled stock. The International Journal of Advanced Manufacturing Technology.  109.  Issue 9-12. 2457-2464. https://doi.org/10.1007/s00170-020-05824-7. [in English].
[7]    Karnaukh S.G., Karnaukh D.S. (2011). Research of the influence of deformation speed on energy and power adjectives of the process of three-point cold bend breaking and on alignment integrity of raw parts. Metallurgical and Mining Industry. Dnepropetrovsk. №3. Vol.3. 107–114. [in English].
[8]    Karnaukh, S.G. (2017). Development of the choice procedure for separation method of section iron complex criteria of materials destruction. Mechanics and Advanced Technologies. 2(80). 31–38.

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About journal

Topics of the journal:

131 - Applied Mechanics

132 - Materials Science

133 - Industry engineering

141 - Power engineering, electrical engineering and electromechanics

208 - Agricultural engineering

The magazine "Engineering, Energy, Transport AIC" is included in the list of scientific professional editions of Ukraine on technical sciences

(Category "Б", Order of the Ministry of Education and Science of Ukraine dated 02.07.2020 №886)

Key information:
ISSN (print): 2520-6168
DOI: 10.37128/2520-6168

Certificate of state registration of mass media: No. 21906-11806 P dated 03/12/2016.

Founder of the journal: Vinnytsia National Agrarian University

Editor-in-chief: Tokarchuk Olexiy A.

Ph.D., Assoc., VNAU (Vinnytsia)

Deputy Editor-in-Chief: Veselovska Nataliia R.

Doctor of Technical Sciences, Full Prof., VNAU (Vinnytsia)

Executive Secretary: Polevoda Yuri A.

Ph.D., Assoc., VNAU (Vinnytsia)

Members of the Editorial Board:

Tokarchuk O.A. - Ph.D., Associate Professor, Vinnytsia National Agrarian University

Veselovska N.R. - Doctor of Technical Sciences, Full Professor, Vinnytsia National Agrarian University

Bulgakov V.M. - Doctor of Technical Sciences, Full Professor, Acad. NAAS, National University of Life and Environmental Sciences of Ukraine

Iskovich-Lototsky R.D. - Doctor of Technical Sciences, Full Professor, Vinnytsia National Technical University

Polevoda Yu.A. - Ph.D., Associate Professor, Vinnytsia National Agrarian University

Tsurkan A.V. - Ph.D., Associate Professor, Vinnytsia National Agrarian University

Ivanchuk Y.V. - Ph.D., Associate Professor, Vinnytsia National Technical University

Jordan Todorov Maximov - Doctor of Technical Sciences, Full Professor, Technical University of Gabrovo (Bulgaria)

Type of publication: journal

Kind of publication: scientific

Publication status: domestic

Year of foundation: 1997

Periodicity: 4 times per year

Volume: 18-20 conv. print. sheet (А4)

ISSN: 2520-6168 (print version), (online version)

Language of publication: (mixed languages) Ukrainian, Russian, English

The sphere of distribution and category of readers: national, foreign, faculty, scientists, entrepreneurs.

The periodical edition is included to the List of scientific professional publications of Ukraine on technical sciences, approved by order of the Ministry of Education and Science of Ukraine in 05.16.2016, No. 515.

The journal "Engineering, Energy, Transport AIC" is included in the "Catalog of Ukrainian Publications".

Subscription to the journal can be issued in each post office. The subscription index is 99720.

History of journal:

It was founded in 1997 under the title "Bulletin of the Vinnitsa State Agricultural Institute." According to the Decree of the Presidium of the Higher Attestation Commission of Ukraine of September 11, 1997, this publication received the status of a professional in which it is allowed to publish the main results of dissertation researches.

In 2001-2014 the journal published under the title “Collection of scientific works of Vinnytsia National Agrarian University. Series: Technical Sciences "(Certificate of State Registration of Mass Media KV No. 16644-5116 PR of 04/30/2010).

Since 2015 journal has title "Engineering, Energy, Transport AIC" (Certificate of State Registration of Mass Media No. 21906-11806 P dated 03/12/2016).