INCREASING THE OPERATING PROPERTIES OF THE MACHINE PARTS BY THE SURFACE RELIEFS

ABSTRACT

Posviatenko E.K., Posviatenko N.I., Rybak I.P. Increasing the operating properties of the machine parts by the surface reliefs Visnyk National Transport University. Series «Technical sciences». Scientific and Technical Collection. - Kyiv: National Transport University, 2021. - Issue 1 (48).

The article discusses the direction of improving the operational properties of machine parts by applying regular reliefs to the surface/

Purpose - to develop a model, plan and methodology for experimental studies of regular reliefs and create their classification by purpose and methods of obtaining.

The object of research - regular reliefs on the surface of machine parts.

The hierarchy of the main factors that affect the profile of reliefs formed by triangular grooves is determined. This is the normal penetration force of a linear indenter, hardness and elongation of the experimental material. The optimization parameter is the groove depth.

A mathematical model and research plan have been developed 23.

The methodology and devices for conducting experiments are determined. These are hydraulic presses, linear indenters, optical microscopes, microhardness testers, test materials, instruments, and measuring instruments. Materials for research: alloyed and stainless steel, gray and malleable cast irons, bronze and brass, aluminum and titanium alloys.

Classifications of reliefs according to the methods of obtaining and destination are developed. Production methods are based on cold plastic deformation and cutting. The basic methods for the study are static methods: the introduction of a dividing element with discrete drawing and a single protrusion of the shaped mandrel during reduction.

The dependence of the depth and double angle of the relief groove on the normal force is shown.

A new method for obtaining the surface of a part, including the alternation of supporting platforms and grooves is proposed. The method is carried out using machining and subsequent deformation pulling. A distinctive feature of the method is the use of an intermediate elastic sleeve.

KEYWORDS: REGULAR RELIEF, COLD PLASTIC DEFORMATION, LINEAR INDUCTOR, SURFACE OF PARTS, COATING, MODEL OF FORMATION OF RELIEF.

REFERENCES

  1. Nadiynist' tekhniky. Terminy ta vyznachennya [Reliability of technology. Terms and definitions]. (1995) DSTU 2860:1994. Kiev: Derzhstandard Ukraine. 26 с. [in Ukrainian].
  2. Metallic materials. Instrumented indentation test for hardness and materials parameters. Part 3: Calibration of reference blocks. (2015) ISO 14577-3:2015. Geneva, ISO. 8p.
  3. Tkachuk N.A., Diachenko S.S., Posviatenko E.K. (2018) Kontinual'naya i diskretno- kontinual'naya modifikatsiya poverkhnostey detaley [Continual and discrete-continual modification of surfaces of parts: monograph]. Kharkov: «Planeta-Print». 259p. [in Russian].
  4. Grabchenko, A.I., Zaloga, V.A., Vnukov, Yu.N. (2017) Integrirovannyye protsessy obrabotki materialov rezaniyem [Integrated processing materials by cutting processes]. Sumy: Universytetska knyha. 451p. [in Russian].
  5. Influence of material and the technological factors on improvement of operating properties of machine parts by reliefs and film coatings / E. Posviatenko, N. Posviatenko, R. Budyak and other. Eastern- European journal of enterprise technologies, 2018, № 5/12 (95). P. 48 - 56.
  6. Marchenko, A.P., Tkachuk, M.A., Sobol, O.V., Posviatenko, E.K. (2017). Innovatsiyni tekhnolohiyi kompozytsiynoho zmitsnennya poverkhni elementiv vyrobiv dlya oboronnoyi ta enerhetychnoyi haluzey [Innovative technologies of composite hardening of the surface of elements of products for the defense and energy industries]. Mekhanika ta mashinobuduvannia - Mechanics and machine building. Kharkiv: NTU»KhPI». 1, PP. 234-245. [in Ukrainian].
  7. Poduraev, V.N., Kamalov, V.S., (1973) Fiziko-khimicheskiye metody obrabotki [Physico­chemical processing methods]. Moscow: Mashinostroenie. 346 p. [in Russian].
  8. Shneider, Yu. G., (1982) Ekspluatatsionnyye svoystva detaley s regulyarnym mikrorel'yefom. [Operational properties of parts with regular microrelief]. Leningrad: 248 p. [in Russian]. [in Russian].
  9. Aftanaziv, i.S., Gavrish, A.P., Kyrychok, P.O. (2001) Pidvyshchennya nadiynosti detaley mashyn poverkhnevym plastychnym deformuvannyam. [Improving the reliability of machine parts by surface plastic deformation]. Zhytomyr: Zhytomyrs'kyi inzhenerno-tehnologichnii institut. 516 p. [in Ukrainian].
  10. Nahaichuk, O.V. (2004) Issledovaniye mekhaniki vnedreniya ploskogo shtampa v zhestkoplasticheskiy material s ispol'zovaniyem metoda konechnykh elementov [The study of the mechanics of embedding a flat die in a rigid plastic material using the finite element method]. Fizika i tekhnika vysokikh davleniy - Physics and technique of high pressures. Vol. 14/1. P.71 - 78. [in Russian].
  11. Posviatenko, E.K., Paladiichuk, Yu. B., (1999) Formuvannya rehulyarnoho makrorel'yefu poverkhon' otvoriv detaley kombinovanym protyahuvannyam [Formation of a regular macro-relief of the surfaces holes of the parts by combined stretching]. Visnyk Natsional'noho tekhnichnoho universitetu Ukraiini»Kyyivs'kyy politekhnichnii institut» - Bulletin of the National Technical University of Ukraine «Kyiv Polytechnic University». Issue 37. P. 256-261. [in Ukrainian].
  12. Posviatenko, E.K., Aksiom, P.A., (2016) Rozrobka naukovykh osnov polipshennya obroblyuvanosti detaley transportnykh zasobiv iz austenitnykh staley [Development of the scientific basis for improving the machinability vehicle parts of austenitic steel]. Upravlinnya proektamy, systemnyy analiz i lohistyka: Seriya tekhnichni nauky. - Project Management, Systems Analysis and Logistics: Technical Sciences Series. Part 1, 18. P. 94-100. [in Ukrainian].

AUTHOR

Posviatenko Eduard K., Doctor of Technical Science, professor, National Transport University, professor, department of production, repair and materials science, e-mail: pek1943@ukr.net, +380442808203, Ukraine, Kyiv, st. Omelianovicha-Pavlenko, 1, r. 101a, orcid.org/0000-0001-6606-1365

Posviatenko Natalia.I., Ph.D., associate professor, National Transport University, associate professor department road vehicles, e-mail: natali1963@ukr.net, tel. 044-280-97-73, Ukraine, 01010, Kyiv, Omelianovicha-Pavlenko str. 1, of.226, orcid.org/0000-0002-2217-4170

Rybak Ilya P., post-degree student, National Transport University, post-degree student, department of production, repair and materials science, e-mail: ilya.003@ukr.net, tel. +380442808203, Ukraine, 01010, Kyiv, st. Omelianovicha-Pavlenko, 1, r. 101a, orcid.org/0000-0002-2071-5754

REVIEWER

Klimenko S.A., Ph.D., Engineering (Dr.), professor, Deputy Director for Scientific Work of Institute Superhard Materials named V.N. Bakul NAS of Ukraine, Kyiv, Ukraine.

Mateichik V.P., Ph.D., Engineering (Dr.), professor, National Transport University, professor, department of Environment and Safety, Kyiv, Ukraine.

Article language: Ukrainian

Open Access: http://publications.ntu.edu.ua/visnyk/48/270-282.pdf

Print date: 15.03.2021

Online publication date: 05.04.2021

 

Search