Residual Temperature Stresses in Shadow Pyrographite Grids of the Microwave Electrovacuum Devices Arising at Laser Cutting on Different Modes

Laser processing of pyrographite was carried out on different technological setups by radiation of the solid-state laser with wavelength X= 1.064 mum and pulse duration tau = 4middot10
^-3
s, tau = 1.5middot10
^-4
s, tau = 1.2middot10
^-7
s. The power density of falling radiation was changed in a range 10
⁶
-10
⁷
W/cm
²
. Residual temperature stresses were studied by the X-ray method. Minimization of residual temperature stresses is determined