FIELD: process engineering.
SUBSTANCE: invention relates to metal machining by laser beam. Proposed method comprises stages described below First step comprises making first bore with initial diameter and bore axis. Second step comprises displacing laser beam and rotating it about bore axis to produce intermediate bore aligned with initial bore but with larger diameter. Third step comprises displacing laser beam focus along bore axis and finishing said bore by pulsed laser beam.
EFFECT: boring in composite material with ceramic substrate, for example in gas turbine engine combustion chamber or vane.
11 cl, 6 dwg
