Device for producing recesses in the cylindrical inner surfaces of holes used in the production of engine blocks for combustion engines comprises using a laser beam which is periodically deviated in a radiation deviating unit

摘要

Device for producing recesses in the cylindrical inner surfaces of holes comprises using a laser beam (5, 5') which is periodically deviated by first deviating unit in a radiation deviating unit (1) so that the point (20) on which it is focused rotates on a circular path (25) about an optical axis in the x/y-plane of a coordinate system. Preferred Features: The first deviating unit comprises a first mirror (6) and a second mirror (10), in which the first mirror pivots about an axis (7) lying parallel to the z-axis of the coordinate system and the second mirror pivots about an axis (11) lying in the x/y-axis of the coordinate system.