Improving the technology of part machining by surface plastic deformation
DOI:
https://doi.org/10.15587/1729-4061.2019.183541Keywords:
plastic deformation, process modelling, vibration treatment, residual stresses, surface roughness, strengtheningAbstract
The purpose of this work is to study the technological process of strengthening hollow cylindrical parts of tractor engines using surface plastic deformation.
Experimental studies in a wide range of changes in various factors have been preliminary performed on models. The data obtained were recalculated from the model to specific parts – piston fingers and bushings of the top heads of connecting rods in automotive tractor engines. The study was aimed at determining the efforts, stresses, changes in shape, the properties and structure of a parts’ material. In the course of our study, the law of similarity was maintained, whereby the sample models were geometrically similar and physically identical to parts. The rational shape of machining tools was experimentally established – conical; as well as its optimum dimensions: angle of inclination, 10°30’; magnitude of the calibration belt, 6–7 mm, which provide for the magnitude of strengthening and surface quality of the machined material. We have experimentally established the effect of angle of inclination of the machining tool on the amount of a metal sticking to its working surface. The dependence of the amount of a sticking metal on its hardness and the elasticity module has been established. We have determined the impact of height of the calibration part of a machining tool on the roughness of a part’s machined surface.
The empirical dependence of machining allowance with a residual deformation along the outer diameter of a piston finger has been derived based on the laboratory data obtained. It has been found that the most dangerous are the tangential stresses along the outer surface of piston fingers, which were determined in the process of deformation by a strain gauge method. We have experimentally established the value of machining allowance over a single run of the working tool at vibration deformation of piston fingers, which ensures a reduction in tensile residual stresses. Our study into the static strength of piston fingers has found that the magnitude of wear depends on the following basic factors: a machining method, the material and time of operation.
The research into the weight wear of piston fingers and bushings of the top heads of connecting rods has established that at vibration deformation the amount of wear is less compared to regular expansion. The magnitude of wear of the piston fingers restored by a vibration method is 1.13 times less than that in those restored by regular expansionReferences
- Bounezour, H., Laouar, L., Bourbia, M., Ouzine, B. (2018). Effects of work hardening on mechanical metal properties – experimental analysis and simulation by experiments. The International Journal of Advanced Manufacturing Technology, 101 (9-12), 2475–2485. doi: https://doi.org/10.1007/s00170-018-3071-x
- Kovacı, H., Bozkurt, Y. B., Yetim, A. F., Aslan, M., Çelik, A. (2019). The effect of surface plastic deformation produced by shot peening on corrosion behavior of a low-alloy steel. Surface and Coatings Technology, 360, 78–86. doi: https://doi.org/10.1016/j.surfcoat.2019.01.003
- Cao, S. C., Zhang, X., Lu, J., Wang, Y., Shi, S.-Q., Ritchie, R. O. (2019). Predicting surface deformation during mechanical attrition of metallic alloys. Npj Computational Materials, 5 (1). doi: https://doi.org/10.1038/s41524-019-0171-6
- Lu, G., Li, J., Zhang, Y., Sokol, D. W. (2019). A metal marking method based on laser shock processing. Materials and Manufacturing Processes, 34 (6), 598–603. doi: https://doi.org/10.1080/10426914.2019.1566618
- Hu, J., Shimizu, T., Yoshino, T., Shiratori, T., Yang, M. (2018). Ultrasonic dynamic impact effect on deformation of aluminum during micro-compression tests. Journal of Materials Processing Technology, 258, 144–154. doi: https://doi.org/10.1016/j.jmatprotec.2018.03.021
- Kelemesh, A., Gorbenko, O., Dudnikov, A., Dudnikov, I. (2017). Research of wear resistance of bronze bushings during plastic vibration deformation. Eastern-European Journal of Enterprise Technologies, 2 (11 (86)), 16–21. doi: https://doi.org/10.15587/1729-4061.2017.97534
- Grochała, D., Berczyński, S., Grządziel, Z. (2019). Analysis of Surface Geometry Changes after Hybrid Milling and Burnishing by Ceramic Ball. Materials, 12 (7), 1179. doi: https://doi.org/10.3390/ma12071179
- Wang, Z., Basu, S., Murthy, T. G., Saldana, C. (2018). Gradient microstructure and texture in wedge-based severe plastic burnishing of copper. Journal of Materials Research, 33 (8), 1046–1056. doi: https://doi.org/10.1557/jmr.2018.58
- Mamalis, A. G., Grabchenko, A. I., Mitsyk, A. V., Fedorovich, V. A., Kundrak, J. (2013). Mathematical simulation of motion of working medium at finishing–grinding treatment in the oscillating reservoir. The International Journal of Advanced Manufacturing Technology, 70 (1-4), 263–276. doi: https://doi.org/10.1007/s00170-013-5257-6
- Świercz, R., Oniszczuk-Świercz, D., Chmielewski, T. (2019). Multi-Response Optimization of Electrical Discharge Machining Using the Desirability Function. Micromachines, 10 (1), 72. doi: https://doi.org/10.3390/mi10010072
- Dudnikov, A., Dudnikov, I., Kelemesh, A., Gorbenko, O. (2018). Influence of the hardening treatment of a machine parts’ material on wear-resistance. Eastern-European Journal of Enterprise Technologies, 3 (1 (93)), 6–11. doi: https://doi.org/10.15587/1729-4061.2018.130999
- Dudnikov, A. A., Dudnik, V. V., Kelemesh, A. O., Gorbenko, A. V., Lapenko, T. G. (2017). Increasing the reliability of machine parts by surface plastic deformation. Vibratsii v tekhnitsi ta tekhnolohiyakh, 3 (86), 74–78.
- Stepanov, M. N. (1985). Statisticheskie metody obrabotki rezul'tatov mehanicheskih ispytaniy. Moscow: Mashinostroenie, 232.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2019 Anatolii Dudnikov, Ihor Dudnikov, Anton Kelemesh, Oleksandr Gorbenko
This work is licensed under a Creative Commons Attribution 4.0 International License.
The consolidation and conditions for the transfer of copyright (identification of authorship) is carried out in the License Agreement. In particular, the authors reserve the right to the authorship of their manuscript and transfer the first publication of this work to the journal under the terms of the Creative Commons CC BY license. At the same time, they have the right to conclude on their own additional agreements concerning the non-exclusive distribution of the work in the form in which it was published by this journal, but provided that the link to the first publication of the article in this journal is preserved.
A license agreement is a document in which the author warrants that he/she owns all copyright for the work (manuscript, article, etc.).
The authors, signing the License Agreement with TECHNOLOGY CENTER PC, have all rights to the further use of their work, provided that they link to our edition in which the work was published.
According to the terms of the License Agreement, the Publisher TECHNOLOGY CENTER PC does not take away your copyrights and receives permission from the authors to use and dissemination of the publication through the world's scientific resources (own electronic resources, scientometric databases, repositories, libraries, etc.).
In the absence of a signed License Agreement or in the absence of this agreement of identifiers allowing to identify the identity of the author, the editors have no right to work with the manuscript.
It is important to remember that there is another type of agreement between authors and publishers – when copyright is transferred from the authors to the publisher. In this case, the authors lose ownership of their work and may not use it in any way.
