| 摘要 |
PURPOSE:To automatically process a metallic surface by subjecting the prescribed part of a work piece to controlled irradiation with non-pulse laser beams and executing the controlled irradiation with the pulse laser beams at prescribed intervals. CONSTITUTION:The non-pulse laser beams and the pulse laser beams are respectively generated and controlled by first and second laser beam generators 1, 2. The central part of a beam coupling mirror 4 is formed as a transmission type mirror and the outer peripheral part thereof is formed as a total reflection mirror by a reflection film 5. The laser beams are controlled to be made incident by a turn back mirror 3. The laser beams are condensed to the work piece 10 by a lens 6. As a result, the prescribed part of the metallic work piece 10 is subjected to the controlled irradiation with the non-pulse laser beams and is subjected to the controlled irradiation with the pulse laser beams simultaneously therewith or after the prescribed interval, by which the shaping of the prescribed part is executed. As a result, the same region on the metal is subjected to the controlled irradiation with the two laser beams simultaneously or at the adequate time interval. |
