Method for laser drilling a component made of a ceramic matrix composite, the method including a step of trepanning and a step of removing slag by enlarging the laser beam, hold obtained by this method, component made of a ceramic matrix composite containing it, and turbojet comprising such a component

摘要

A method of drilling holes in a component made of a ceramic matrix composite with a laser beam. The method includes: a percussion first step during which an initial hole having an initial diameter and a hole axis is drilled; a trepanning second step during which an intermediate hole, coaxial with the initial hole and having a larger diameter than that of the initial hole, is drilled by shifting the laser beam and then making it rotate about the hole axis; and a third step during which the focal point of the laser beam is moved along the hole axis and then pulses are triggered, to obtain a final hole.