OBRABOTKAMETALLOV Vol. 23 No. 3 2021 MATERIAL SCIENCE EQUIPMENT. INSTRUMENTS 5 3 Fig. 8. Functional dependence ΨU10(qS,VS) for U10A steel Fig. 9. The dependence of specific power of the source on its speed while HEH HFC hardening steel U10 to a depth of h = 0.52 mm. * The level of microhardness of the surface layer of the part, achieved after the operation “Surface hardening by HEH HFC” Ta b l e 2 Calculation results of the efficiency and energy consumption in the integrated processing of surface HEH HFC hardening Steel, mode Travel speed V S, m/s Specific power qS, 10 8 W/m2 Efficiency, s -1 Energy consumption, kW ∙ h U10A A 0.066 2.09 0.108 0.011 B 0.073 2.49 0.119 0.012 As a result of the analysis, it can be concluded that the use of integral processing allows significantly increasing the efficiency of surface HEH HFC hardening in comparison with the existing technology at the enterprise up to 36–40 times. In addition, energy costs are reduced by almost 6 times. The results of optical microscopy, measurements of microhardness and residual stresses are presented in the form of graphical and numerical information in fig. 10. The presented results become the basis for a deeper analysis and interpretation of the data obtained.
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