Threedimensional temperature field distribution during welding

This paper deals with most often used body models and hear sources at welding. 3 - dimensional distribution of temperature field at welding has been calculated for these models. This approach for calculation and presentation of results of temperature fields calculation, is suitable because ii gives more realistic picture of plate temperature change, since ii is possible to avoid simplifications. This results could be used, more reliable, at determing, some variables at welding (cooling time t(g/5)). Modern computer equipment enables quick calculation, which could not be carried out before, due to problems with huge number of data.