Optimization of the laser thermocracking process V. S. Kondratenko, V. E. Borisovsky, A. S. Naumov Moscow State University of Instrument Engineering and Computer Science 20 Stromynka str., Moscow, 107846, Russia E-mail: vsk1950@mail.ru The paper contains the mathematical and experimentally analysis of the edges influence at the thermocracking of thin plates. <...> Solved is the problem of thermoelasticity of the plate in the inhomogeneity of the temperature near the edge of the plate. <...> It is demonstrated that substantial additional thermostress already arise with slight distortions of symmetry in the temperature distribution in laser controlled thermocracking of the plate. <...>