LASER BEAM MACHINING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a laser beam machining apparatus capable of machining a printed board of high quality by preventing an irradiation mark from remaining on a workpiece when it is re-irradiated with reflecting laser beams reflected on the workpiece.

SOLUTION: A machining head 251having a galvano scanner 2 and an fθ lens 5 is provided with a shielding plate 261of high laser beam absorptance, and the shielding plate 261absorbs the reflecting laser beams 9 reflected on the workpiece W.

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