The paper presents the results of simulation of alloy layer formation process on the model casting. The first aim of this study was to
determine the influence of the location of the heat center on alloy layer’s thickness with the use of computer simulation. The second aim of
this study was to predict the thickness of the layer. For changes of technological parameters, the distribution of temperature in the model
casting and temperature changes in the characteristic points of the casting were found for established changes of technological
parameters. Numerical calculations were performed using programs NovaFlow&Solid. The process of obtaining the alloy layer with good
quality and proper thickness depends on: pouring temperature, time of premould hold at the temperature above 1300o
C. The obtained
results of simulation were loaded to authorial program Preforma 1.1 in order to determine the predicted thickness of the alloy casting