Gankevich V.F, Pashchenko O.A, Kurnat N.L, Kiba V.Ya. About influence of laser radiation on the reliability of cutting tool in the mining machines

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Parent Category: Geo-Technical Mechanics, 2017

Category: Geo-Technical Mechanics, 2017, Issue 137

 

Geoteh. meh. 2017, 137, 25-31

ABOUT INFLUENCE OF LASER RADIATION ON THE RELIABILITYOF CUTTING TOOL IN THE MINING MACHINES

¹Gankevich V.F, ¹Pashchenko O.A, ¹Kurnat N.L, ¹Kiba V.Ya.

¹SHEI "NMU"

UDC 620.178.4

Abstract. In the paper, influence of laser treatment on change of parameter of solid alloys used for manufacture of parts for mining machines is considered. Effect of laser radiation on the surface of porous sintered alloys is shown including changes of porosity and microcracks in the cutting-tools, which are manufactured by method of sintering. After laser irradiation, the investigated sintered samples featured improved characteristics such as wear resistance and increased microhardness. The applied laser radiation provides better characteristics of the tools made of the sintered powders. Formation of microcracks does not worsen quality of working surface due to its more even wear.

Keywords: solid alloys, structure, porosity, wear resistance, microcracks, laser radiation, surface treatment.

 

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About the authors

Gankevich Valentin Feodosiyevich, Candidate of Technicsl Sciences (Ph.D.), Associate Professor, Associate Professor in the Department of Mine Machines of the State Higher Educational Institution «National Mining Univercity» (SHEI «NMU»), Dnepr, Ukraine,

Pashchenko Aleksandr Ananolievich, Candidate of Technical Sciences (Ph.D.), Associate Professor, Associate Professor in the Department of Engineering Exploration of Mineral Deposits of the State Higher Educational Institution «National Mining Univercity» (SHEI «NMU»), Dnepr, Ukraine, Pashchenko. This email address is being protected from spambots. You need JavaScript enabled to view it.

Kurnat Nataliya Leonidovna, Master of Science, Senior Lecturer in the Department of Physics of the State Higher Educational Institution «National Mining Univercity» (SHEI «NMU»), Dnepr, Ukraine

Kiba Vyacheslav Yakovlevich, Master of Science, Senior Lecturer in the Department of Building, The oretical and Applied Mechanics of the State Higher Educational Institution «National Mining Univercity» (SHEI «NMU»), Dnepr, Ukraine.

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