доктор технических наук;
doctor of technical sciences;
Рассмотрены особенности формирования температурного поля в поверхностном слое серого чугуна при высокоскоростном нагреве. На основе решения дифференциального уравнения теплопроводности показано влияние режимных параметров теплового источника (плотность теплового потока, коэффициента сосредоточенности и скорости перемещения) на характеристики термоупрочненного слоя.
In the paper there is shown the topicality of theoretical researches of processes arising in a surface layer of materials at combined machining methods. The peculiarities of thermal processes development in a surface layer of grey iron at high speed heating are considered. On the basis of the solution of a thermal conductivity differential equation the influence of heat source parameters (heat flow density, coefficient of concentration and movement speed) upon characteristics of a temperature field in a surface layer of material worked. The quantitative correlations of dimensions of an area of phase changes in a surface layer at a constant value of heat flow density and at the ensuring of constancy of maximum temperature value on the surface worked are determined. The characteristics correlation of a temperature field at the change of a coefficient of concentration and flow density of a heat source is revealed.