The article focuses on the issue of heat treatment. The cooling curves were obtained for Isorapid 277HM with an experimental way of temperature measuring and their statistical processing. Experimental method was consistent with the test normative ISO standard 9950 (Wolfson's test). The cooling oil Isorapid 277HM was agitated with different agitation work and had a constant temperature of 50 °C. In the next part of this article the surface temperature depended combined heat transfers were calculated. The methodology was based on inverse heat transfer. The interpretation code was software ANSYS and ORIGIN.

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Article deals with the temperature measurement and analysis of temperature fields by the process of laser cutting. A direct path was carried out during experiments on a stainless steel plate of 5 mm in thickness. The temperatures were measured by four K-type thermocouples using digital converter NI USB9211 in order to find out the temperature distribution in the direction perpendicular to the central plane of the cut. Moreover, the dimension of the kerf width was determined using confocal laser scanning microscopy. Obtained results of temperature measurements will be used for verification of developed simulation model and results of numerical simulation of laser cutting process obtained by ANSYS and SYSWELD software.

The article is focused on the issue of heat treatment. The cooling curves were obtained for Isorapid 277HM with an experimental way of temperature measuring and their statistical processing. Material data of the material pattern 50CrMo4 were obtained from the Material Data Sheet (MDS) of Deutsche Edelstahlwerke (***, 2011). The cooling oil Isorapid 277HM was agitated with energy input 1.65 J.s −1 .kg −1 and had a constant temperature of 50 °C. In the follow of this article were showed the experimentally obtained results: geometry distortion,

The paper deals with problems of computer modelling of heat treatment processes. The effect of the choice of the coefficient of heat transfer between the coolant and components was quantified. The oil Isorapid HM 277 was chosen as the coolant. Two cases of application of the convective boundary condition were studied through numerical experiment. In the first of the cases, a real functional dependence of the heat transfer coefficient (HTC) was applied on the surface temperature. In the second case, it was used constant and temperature independent values of HTC on the surface temperature. Cooling curves were obtained through numerical experiment. Derived variables such as cooling rate, the density of the thermal flows are shown in the paper. Code ANSYS was used as interpretative tool of the numerical experiment.