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Engineering, Energy, Transport AIC

space SCIENTIFIC JOURNALS OF VINNITSA NATIONAL AGRARIAN UNIVERSITY

Issue №: 4(111)

Published: 2020.12.18
DOI: 10.37128/2520-6168-2020-4


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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IMPROVEMENT OF TECHNOLOGICAL PROCESS OF DRILLING THIN SHEET STEELS

DOI: 10.37128/2520-6168-2020-4-5
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Ostrovsky Anatoliy – Assistant of the Department "Machinery and Equipment for Agricultural Production" of the Vinnytsia National Agrarian University (3, Solnechnaya St., Vinnitsa, 21008, Ukraine, email: anatol.u.ostrowski@gmail.com).

Annotation

This article considers the technological process of drilling holes in sheet metal. The existing typical technological process, with detailed analysis, provides grounds for substantiating the idea of an innovative solution. There is a connection between the improvement of economic indicators of this technological operation with the change of geometric parameters of the tool.
The comparison of existing technological processes, operations, and transitions of production of round openings with the use of spiral drills is given. The traditional technique involves a clear sequence of the technological process with the use of tools for marking, kerning, and sequential use of screw drills of different diameters.
Therefore, after the previous operation of marking the center of the two holes, perform the operation of kerning. The core (recess in the metal) prevents the deviation of the small diameter screw drill from the marking lines. After the above steps, the traditional technological process involves drilling a small diameter hole in order to direct the main tool in the right direction. To make the main hole perform special sharpening of the working part of the twist drill so that the diameter of the Central part of the tool is equal to the diameter of the first guide hole to avoid further displacement of the main hole and the next operation is to drill the hole to the desired diameter.
As a result, the article raises the topic, given the widespread use of sheet metal, including in the agricultural sector, the feasibility of using an innovative idea to improve the technological process associated with the processing of sheet material, namely thin metal sheets. It is worth noting that for example, we consider a material that is characterized by its versatility, namely steel Ст 3. Despite the numerous sources devoted to the study of improving the drilling process, there are a number of issues, including the extension of this direction surfaces with a covering and without it, various thicknesses within the thin-walled hire. The most significant result of the improved technological process of drilling will be used in the system of efficient maintenance of agricultural machinery.

Keywords: drill, drilling, technological process of drilling, spiral drills, sharpening of spiral drills, feather drills.

List of references

[1]    Ryszard Kuryjański. Obróbka skrawaniem i obrabiarki. URL: http://194.29.132.141/var/www glowna/storage/original/application/9e196c68692d8a7839515637a21218b8.pdf (дата звернення: 3.12.2020).
[2]    Drill bit : Wikipedia. URL: https://en.wikipedia.org/wiki/Drill_bit.
[3]    Porady dotyczące wiercenia w cienkich blachach poniżej 8 mm. URL: https://docplayer.pl/106044689-Zalecenia-dotyczace-obrobki-stali-strenx-i-hardox.html (дата звернення: 3.12.2020).
[4]    Bohren von Dünnblech. URL: https://www.perfekter-halt.de/template/elemente/158/Rund%20 ums%20Thema%20Bohren.pdf (дата звернення: 3.12.2020).
[5]    Sheet metal structures. URL: https://memberfiles.freewebs.com/76/87/106238776/documents/2% 20SHEET%20METAL%20STRUCTURES.pdf
[6]    Správný vrták usnadní práci. Univerzální vrtáky. URL: https://www.idnes.cz/hobby/dilna/spravny-vrtak-usnadni-praci.A081123_222018_hobby-dilna_bma (дата звернення: 3.12.2020).
[7]    Hloba O., Oliynyk YE., Syenkevych K. (2009) Doslidzhennya protsesu sverdlinnya aviatsiynykh materialiv tryperymy sverdlamy z metoyu udoskonalennya heometriyi rizalʹnoyi chastyny. [Research of the process of drilling aviation materials with three-point drills in order to improve the geometry of the cutting part]. Protsesy mekhanichnoyi obrobky v mashynobuduvanni Vypusk 7. S. 48-54. [in Ukrainian].
[8]    Hrechuk A. I. Pidvyshchennya efektyvnosti protsesu sverdlinnya vuhleplastykiv ta skloplastykiv lezovymy almaznymy sverdlamy [Improving the efficiency of the process of drilling carbon plastics and fiberglass blade diamond drills] : dys. … kand. Tekhn. Nauk : 05.03.01. Kyyiv, 2019. 158 S [in Ukrainian].

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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

Bandura V. N. - Ph.D., Full professor, Vinnytsia National Agrarian 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).