INCREASING RESISTANCE OF HIGH-SPEED DRILLS BY LOW-TEMPERATURE CARBON NITRIDE COATING
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Abstract
Some of the characteristics and operational stability of the protective diffusion layers obtained by low-temperature carbon nitride coating of high speed steels were investigated. A measurement of such important characteristics of the cutting process parameters such as torque and the axial component of cutting forces, wear, respectively, front and back surfaces was done. To determine the operational stability of nitride hardening coatings obtained in the pyrolysis products of urea, the tests were conducted in accordance with the methodology and standardized using methods of mathematical experiment planning. Material presented in this paper has practical application, the proposed composition and technology of applying protective coatings by chemical-heat treatment can be recommended as a process, significantly improving operational performance stability and reliability of twist drills.
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References
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