Determination of optimal conditions of laser forming of tool layer of abrasive tools
DOI:
https://doi.org/10.15587/1729-4061.2012.5716Keywords:
laser sintering, superhard materials, tool compositesAbstract
The basic parameters, which determine the physical and chemical processes occurring in the surface layer during the laser sintering of composites from superhard materials, are temperature, time of heating and cooling rate. These parameters are directly dependent on a number of factors related to the laser beam, the powder mixture components and the implementation of the terms of the technological sintering process. The ultimate goal of the laser sintering is to provide to the surface layer of composite a set of physical-mechanical and performance properties. Between the physicochemical processes and performance properties there is an ordered tie through the qualitative characteristics of the formed surface layer of the composite with superhard material. The determination of the interactions allows us to design technological processes to obtain a secure result of laser sintering of composites with superhard materials of tool purpose. In this article the mechanism and factors, affecting the formation of tool abrasive layer during the laser sintering with different wavelength, was considered. The ranges of optimum conditions of irradiation without loss of superhard material abrasive properties were determinedReferences
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Copyright (c) 2014 Олексій Олександрович Гончарук, Олексій Дмитрович Кагляк, Леонід Федорович Головко, Анатолій Миколайович Лутай
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