METHOD OF MULTI-POSITION LASER CUTTING USING DIFFRACTION OPTICAL ELEMENTS Russian patent published in 2020 - IPC B23K26/38 B23K26/64 C03B33/04 

FIELD: cutting.

SUBSTANCE: invention relates to processing of sheet materials by concentrated energy flows, in particular, to a method for multi-position laser cutting of thin-sheet material. Concentration of concentrated surface energy sources in the form of beams with diameter of 0.2–0.3 mm is performed simultaneously on the processed material of continuous laser radiation. Sources are formed at several places on surface of material and moved along preset trajectory with constant or variable speed. Formation of concentrated surface energy sources is performed by means of movable diffraction optical elements - multirange beam dividers.

EFFECT: technical result consists in improvement of accuracy of processing along parallel, axisymmetric and centrosymmetrical circuits, as well as in increase of energy efficiency of technological process of cutting.

1 cl, 5 dwg