OPTIMIZATION OF THE PROCESS OF GAS LASER CUTTING OF STRUCTURAL MATERIALS WITH POWERFUL RADIATION IN MODELING BY FULL-FACTOR EXPERIMENT

Abstract

Considered and resolved the problem of creating simplified mathematical models in the form of regression equations used to determine the optimal speeds for gas laser cutting of low-carbon and stainless steels of various thicknesses when operating on laser equipment with a power of up to 6 kW. The aim of the research was to determine the influence of key technological parameters of the gas laser cutting process on the choice of the optimal processing speed for steel sheets with different thicknesses in the conditions of multifactorial experiments. As a result of these experiments, regression mathematical models of the gas laser cutting process for low-carbon and stainless steels were obtained, confirming the possibility of achieving high cutting productivity with simultaneous ensuring of the proper quality of the processed edges. For practical convenience of use, the results of calculations of optimal cutting speeds for low-carbon and stainless steels depending on the studied technological parameters are presented in the form of a table, which makes it possible to quickly and conveniently determine the regimes of gas laser cutting of sheets with a thickness of 3 to 12 mm.