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Engineering, Energy, Transport AIC

space SCIENTIFIC JOURNALS OF VINNITSA NATIONAL AGRARIAN UNIVERSITY

Issue №: 4(115)

Published: 2021.12.24
DOI: 10.37128/2520-6168-2021-4


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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DEVELOPMENT OF DIES WITH DIFFERENTIATED CLAMP FOR CUTTING BLANKS FOR PRECISION STAMPING

DOI: 10.37128/2520-6168-2021-4-7
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Sergii Karnaukh – Ph.D., Associate Professor of the Department "Fundamentals of Machine Design" of the Donbass State Engineering Academy (Akademicheskaya str., 72, Kramatorsk, Ukraine, 84313, е-mail: k_sergii@i.ua, https://orcid.org/0000-0003-2878-4065).

Igramotdin Aliiev – Doctor of Technical Sciences (Eng.), Full Professor, Head of the Metal Forming Department of the Donbass State Engineering Academy ((Akademicheskaya str., 72, Kramatorsk, Ukraine, 84313, е-mail: igramaliev@gmail.com, https://orcid.org/0000-0002-4248-8214).

Viktor Matviychuk – Doctor of Technical Sciences, Full Professor, Head of the Department of Electric Power Stations and Systems of the Vinnytsia National Agrarian University (3 Solnechna St., Vinnitsa, 21008, Ukraine, email: vamatv50@gmail.com , https://orcid.org/0000-0002-7837-5174 ).

Liubov Tahan – Ph.D., Senior Lecturer of the Metal Forming Department of the Donbass State Engineering Academy (Akademicheskaya str., 72, Kramatorsk, Ukraine, 84313, е-mail: l.vik.tagan@gmail.com, https://orcid.org/0000-0002-7628-2142).

Annotation

 

A large contribution to the final cost of machine-building products is made by the efficiency of blank production, in which a waste-free shear cut is used. The most promising for the implementation of the method of shear cutting are dies with a differentiated clamping of rolled products. The aim of the work is to develop a new die design with a differentiated clamping of rolled products with high technical and economic characteristics and recommendations for the design of such equipment. On the basis of the developed graph of constructions of dies with a differentiated clamping of rolled products, design features have been identified, which made it possible to create a new die design. Compared with the known structures, in the stamp of the DSEA structure, the transverse dimensions and weight are reduced by an average of 25%, and the height of the open stamped space – by 10%. In the process of dividing in the vertical plane, a constant position of the rolling axis is ensured. The transfer of force to the clamp through the rolling is excluded. The stamp has high rigidity. The stamps of the DSEA design have been introduced at the Odessa PJSC "Stroygidravlika". The economic effect of the implementation was 100000 UAH.

Acceptance test results showed that the dies of the new design are efficient and reliable in operation. The quality of the cut workpieces corresponds to the quality indicators of the workpieces cut on modern similar equipment. On the basis of theoretical analysis, experimental studies and operating experience of dies with differential clamping of rolled products, known and formulated new recommendations for the design of such dies. The main ones are: it is necessary to provide a differentiated clamping of rolled products on both sides of the separation plane, subject to the condition that the clamping force should be one and a half times greater than the cutting force; the die body is preferably box-shaped to compensate for thrust forces and torsional moments of forces; the power parts of the stamp must be made in a closed form with stiffening ribs to ensure strength under cyclic stress conditions.

Keywords: blanks, shear cut, stamp, differential clamping, stiffness, quality

List of references

[1]    Aliieva, L.I., Tahan, L.V. (2020). Resource-saving processes of cold extrusion: a textbook for students. Kramatorsk: DSEA. [in Ukrainian].
[2]    Aliev, I.S. (1988). Radial extrusion processes. Soviet Forging and Metal Stamping Technology. In: English Translation of Kuznechno-Shtampovochnoe Proizvodstvo. Part 3. 54–61. [in English].
[3]    Aliev, I.S., Lobanov, A.I., Borisov, R.S., Savchinskij, I.G. (2004). Investigation of die blocks with split matrixes for the processes of cross extrusion. In: Forging and Stamping Production (Materials Working by Pressure). 8. 21–26. [in English].
[4]    Solovtsov, S. S. (1985). Waste-free cutting of high-quality rolled products in stamps. Moscow: Mechanical Engineering. [in Russian].
[5]    Karnaukh Sergii G., Markov Oleg E., Aliieva Leila I., Kukhar Volodymyr V. (2020). Designing and researching of the equipment for cutting by breaking of rolled stock. The International Journal of Advanced Manufacturing Technology. 109. 9-12. 2457–2464.[in English].
[6]    Karnaukh, S. G. (2010). Improvement of waste-free methods for separating long products and equipment for obtaining high-quality billets: monograph. Kramatorsk : DSEA. [in Russian].
[7]    Lisunets, N.L. (2019). Usage of physical and mathematical simulation for improvement of the processes of metal shear cutting. CIS Iron and Steel Review. 17. 34–38. [in English].
[8]    Lisunets, N.L. (2018). Improving the efficiency of the processes of billets manufacture from rolled metal via shift cutting based on simulation. Chernye Metally. 6. 31–35. [in English].
[9]    Liu, Y., Hua, L., Mao, H., Feng, W. (2014). Finite element simulation of effect of part shape on forming quality in fine-blanking process, Procedia Engineering. 81. 1108–1113. [in English].
[10]    Zheng, Q., Zhuang, X., Zhao, Z. (2019). State-of-the-art and future challenge in fine-blanking technology, Production Engineering 13. 61–70. [in English].
[11]    Hu, X.H., Choi, K.S., Sun, X., Golovashchenko, S.F. (2014). Edge fracture prediction of traditional and advanced trimming processes for AA6111-T4 sheets, Journal of Manufacturing Science and Engineering 136. 021016 (11 pages). [in English].
[12]    Zhao, P.J., Chen, Z.H., Dong, C.F. (2016). Experimental and numerical analysis of micromechanical damage for DP600 steel in fine-blanking process, Journal of Materials Processing Technology 236. 16–25. [in English].
[13]    Wang, S., Chen, Z., Dong, C. (2017). Tearing failure of ultra-thin sheet-metal involving size effect in blanking process: Analysis based on modified GTN model, International Journal of Mechanical Sciences 133. 288–302. [in English].
[14]    Barik, J., Sonkamble, V., Narasimhan, K. (2018). Burr formation and shear strain field evolution studies during sheet metal blanking. IOP Conference Series: Materials Science and Engineering. 418(1):012068 (8 pages). [in English].

 

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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)

Old version of site: http://tetapk.vsau.edu.ua, http://techjournal.vsau.org

According to the decision of National Council of Television and Radio Broadcasting of Ukraine from 25.04.2024 No. 1337 the scientific journal «Engineering, Energy, Transport AIC» has the ID of the Media R30-05173.

The journal "Engineering, Energy, Transport AIC" is indexed according to the following databases and catalogs:

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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: Oleksii Tokarchuk - Ph.D., Associate Professor, VNAU (Vinnytsia)

Deputy Editor-in-Chief: Natalia Veselovska - Doctor of Technical Sciences, Full Prof., VNAU (Vinnytsia)

Executive Secretary: Yuriy Polevoda- Ph.D., Associate Professor, 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

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

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

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

Hraniak V.F. - Ph.D., Associate Professor, Vinnytsia National Agrarian University

Ivanchuk Y.V. - Doctor of Technical Sciences, Associate Professor, Vinnytsia National Technical University

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

Kupchuk I.M. - Ph.D., Associate Professor, Vinnytsia National Agrarian University

Sevostianov I.V. - Doctor of Technical Sciences, Full Professor, Vinnytsia National Agrarian University

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

Tverdokhlib I.V. - Ph.D., Associate Professor, Vinnytsia National Agrarian University

Tsurkan A.V. - Doctor of Technical Sciences, Associate Professor, Vinnytsia National Agrarian University

Yaropud V.M. - Ph.D., Associate Professor, Vinnytsia National Agrarian University

 

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, 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).