Enhancement of laser cutting by using ball smoothing of cut surface

Authors

DOI:

https://doi.org/10.20535/2521-1943.2024.8.2(101).299709

Keywords:

laser cutting, improvement of characteristics, ball smoothing of the surface, surface structures, combined process

Abstract

This article considered the problem of improving the quality of the edges of parts cut by laser radiation, due to a new approach, which consists in smoothing the surface of laser cuts with a ball tool. The conducted analysis showed the prospects of improving the characteristics of the technology of laser cutting parts from sheets of different thickness when applying subsequent ball smoothing of the cut surface. The purpose of the study is a comprehensive analysis of the effect of smoothing parameters on the operational characteristics of parts obtained by this combined method. The necessary methods of assessing the roughness of the cut surfaces, the microhardness of their edges, and the residual stresses occurring in the surface layer of the cut were used to conduct the experiments. Based on the formulated hypothesis about the prospect of improving the characteristics of the cut edges during their subsequent smoothing, it was experimentally established that there is a noticeable decrease in the values of roughness parameters after smoothing the surface of laser cuts compared to their values for samples only after laser cutting. In addition, studies show that in the region of the edge of the cut, there is an increase in the microhardness of the cut surface by up to 20%. At the same time, compressive stresses appear on the edge of the cut, which ensure an increase in the operational characteristics of the parts after the proposed combined treatment. To implement the researched technology of smoothing the laser cut surface, the design of the smoothing head was proposed. As a result of the study of the proposed combined method of obtaining parts by laser cutting with subsequent smoothing of the surface of the cuts, it was confirmed that with low additional capital costs, it is possible to significantly improve the operational characteristics of the parts produced in this way. This also proves the prospects for further development of the presented combined technology, both with the use of ball smoothing and with the application of other methods of surface strengthening of laser cut edges.

References

  1. L. I. Pupan, Lazerni tehnologii u mashynobuduvanni. Kharkiv: NTU “KhPI”, 2020.
  2. V. S. Kovalenko, V. V. Romanenko and L. M. Oleshhuk, Maloothodnue processu rezky luchom lazera. Kyiv: Tehnika, 1987.
  3. V. V. Romanenko, A. S. Kozurev and A. A. Shkurenko, “Teoretycheskoe obosnovanye realyzacyy processa gazolazernoj rezky metallycheskyh zagotovok bolshyh tolshhyn v polygrafycheskyh proyzvodstvah”, Tehnologija i tehnika drukarstva: zbirnyk naukovyh prac, vol 1 (27), pp. 112–118, 2010.
  4. H. C. Man, J. Duan and T. M. Yue, “Dynamic characteristics of gas jets from subsonic and supersonic nozzles for high pressure gas laser cutting”, Optics & Laser Technology, vol. 30, no. 8, pp. 497–509, 1998. DOI: https://doi.org/10.1016/S0030-3992(98)00083-8.
  5. C. Wandera, V. Kujanpaa and A. Salminen, “Laser power requirement for cutting thick-section steel and effects of processing parameters on mild steel cut quality”, Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, vol. 225, no. 5, pp. 651–661, 2011. DOI: https://doi.org/10.1177/09544054JEM1971.
  6. M. Harnycharova et al., “Prognozyrovanye ostatochnuh naprjazhenyj y naprjazhenyj techenyja po topografyy poverhnosty, sozdannoj s pomoshhju tehnologyy lazernoj rezky", Lazernaja tehnologyja, vol. 52, pp. 21–29, 2013.
  7. V. V. Romanenko, “Pidvyshhennja jakosti gazolazernoi rizky metalevyh materialiv za rahunok usunennja gratu na kromkah riziv pry vykorystanni v poligrafichnij promyslovosti”, Tehnologija i tehnika drukarstva: zbirnyk naukovyh prac, vol. 4 (38), pp. 90–94, 2012.
  8. V. A. Kyrylovych, P. P. Melnychuk and V. A. Janovskyj, Osnovy tehnologij obrobky poverhon' detalej mashyn. Zhytomyr: Vyd. O.O. Jevenok, 2017, 266 p.
  9. R. Avilés, J. Albizuri, A. Rodríguez and L. N. López de Lacalle, “Influence of low-plasticity ball burnishing on the high-cycle fatigue strength of medium carbon AISI 1045 steel”, Int. J. Fatigue, vol. 55, pp. 230–244, 2013. DOI: https://doi.org/10.1016/j.ijfatigue.2013.06.024.
  10. D. Grochała, S. Berczynski and Z. Grządziel, “Stress in the surface layer of objects burnished after milling”, Int. J. Adv. Manuf. Technol., vol. 72, no. 9-12, pp. 1655–1663, 2014. DOI: https://doi.org/10.1007/s00170-014-5775-x.
  11. A. Lewandowski and E. Feldshtein, “Technological heredity when roller burnishing of ductile cast iron”, J. Sci. Ind. Res., vol. 73, pp. 559–565, 2014.
  12. A. Skoczylas and K. Zaleski, “Selected Properties of the Surface Layer of C45 Steel Parts Subjected to Laser Cutting and Ball Burnishing”, Materials, vol. 13 (15), p. 3429, 2020. DOI: https://doi.org/10.3390/ma13153429.
  13. P.J. Withers and H.K.D.H. Bhadeshia, "Residual stress. Part 1 - Measurement techniques", Mater. Sci. Technol., vol. 17 (4), pp. 355–365, 2001. DOI: https://doi.org/10.1179/026708301101509980.

Downloads

Published

2024-06-12

How to Cite

[1]
V. Romanenko, M. Bloshchytsyn, M. Romanenko, and A. Kushnerenko, “Enhancement of laser cutting by using ball smoothing of cut surface”, Mech. Adv. Technol., vol. 8, no. 2(101), pp. 195–202, Jun. 2024.

Issue

Vol. 8 No. 2(101) (2024)

Section

Up-to-date machines and the technologies of mechanical engineering

License

Copyright (c) 2024 Віктор Романенко, Михайло Блощицин, Максим Романенко, Андрій Кушнеренко

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

The ownership of copyright remains with the Authors.
 
Authors may use their own material in other publications provided that the Journal is acknowledged as the original place of publication and National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” as the Publisher.

Authors who publish with this journal agree to the following terms:

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under CC BY 4.0 that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.

  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work