2 research outputs found
ON HEAT-SHARING RATIO IN DEFORMATION ZONE UNDER CUTTING
The specified formula for determining the heat ratio due to the deformation in the shear plane enter ing chippings is got. The obtained results of the heat - sharing ratio calculation for the case of machining 12 Х 18 Н 10 Т heat - resistant steel by ВК 8 alloy are in satisfactory agreements with the literature data
TRIBOCHEMICAL ASPECT OF THE EFFECT HARD ALLOYS METAL ON DETERIORATION AT CUTTING
Warmth calculations of carbides and nitrides oxidation of some metals as elements of wearproof coverings define probability of formation corresponding oxide base metals under the cutting conditions. Proofness indicator (volume factor) of connections is introduced for the first time to estimate efficiency of coverings from nitrides, carbides and aluminides, formed oxides, under the cutting conditions. Experimental data of oxidation of pure metals, double alloys, including aluminides, allow to consider that the efficiency of aluminides of Ti, Fe, Cu, Nb, Zr, Ni, correlates with their proofness indicators values. Research of cutting firm alloys with coverings of TiC, TiN and Al2O3 in the air and in nitrogen atmosphere have confirmed efficiency of these coverings under the retardation (shortstop) of tribochemical contact reactions