POWER CONTROL SYSTEM FOR CNC LASER-BEAM MACHINE TOOL.

摘要

This invention relates to a power control system for a CNC laser-beam machine tool comprising the combination of a numerical control apparatus (CNC) and a laser-beam machine tool. A numerical control apparatus (10) reduces a pulse duty and a pulse frequency in accordance with a drop in machining speed at a corner and performs reduction control of a laser output. In this manner the present invention improves a machining accuracy at a corner, reduces the range of a thermal influence layer and improves surface roughness of a machined section.