In the paper the results of evaluation of the temperature and stress fields during four cycles of the heat treatment process of the windmill shaft has been presented. The temperature field has been calculated from the solution to the heat conduction equation over the whole heat treatment cycles of the windmill shaft. To calculate the stress field an incremental method has been used. https://zqxyuthozsdab.nizarblog.com/35080049/the-main-trends-and-prospects-of-digitalization-of-the-economy-of-ukraine