Laser-assisted Manufacturing of CBN-contained grinding tools

Authors

  • Olekii Goncharuk National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Ukraine https://orcid.org/0000-0003-0575-6571
  • Leonid Golovko National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Ukraine
  • Oleksii Kaglyak National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Ukraine

DOI:

https://doi.org/10.20535/2521-1943.2020.88.200770

Keywords:

laser sintering, super-hard materials, composites for tool manufacturing.

Abstract

Abstract. We report the results of the study of the effect of laser radiation with a wavelength of 1.06 microns and 10.6 of varying intensity on the grain CBN strength under static loading.  The use of the above mentioned abrasive aggregates in combination with bonding materials with different melting temperatures in technological processes of laser-assisted manufacturing of grinding tools is discussed in this paper. There were also discussed special techniques to protect aggregates from overheating at grinding wheel’s manufacturing as well as the quality and productivity of such technological processes. The opportunity to use laser sintering of abrasive layers on main bodies of polishing and cutting tools is discussed in detail. Moreover, the influence of direct and indirect laser heating on the properties of cubic boron nitride (CBN) and physical properties that take place on the boundary of CBN and tool main body. The critical value of the intensity of the laser radiation and the time of exposure at which CBN grains do not lose their original strength. It is shown that in order to reduce the thermal load on the grain CBN advisable to pre-applied metal coating, well reflecting the radiation and improve their wettability ligament. The results of modeling and experimental studies of the process thermal-sintering composites with CBN, defined exposure conditions under which high-quality working layer are formed, including on real instruments.

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Published

2020-04-18

How to Cite

[1]
O. Goncharuk, L. Golovko, and O. Kaglyak, “Laser-assisted Manufacturing of CBN-contained grinding tools”, Mech. Adv. Technol., no. 1(88), pp. 108–123, Apr. 2020.

Issue

No. 1(88) (2020)

Section

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

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