Laser machining apparatus and method of controlling same

Details Laser machining apparatus and method of controlling same Laser machining apparatus and method of controlling same

1997-09-12

1998-11-24

Mills, Gregory L.

Electric heating

Metal heating

By arc

2191216, 21912167, 36447408, B23K 2600

Patent

active

058410961

ABSTRACT:
A laser machining apparatus according to the present invention describes characteristics of a laser oscillator with a function including laser power, pulse frequency and duty ratio, computes a command for a power supply unit in a feed forward control section according to a command based on the function and on the power, duty ratio and frequency, computes a command for a power supply unit in the feedback control section from a power command value and a power measurement value from the power sensor, and inputs these command to the power supply unit. Also the laser machining apparatus detects changes in characteristics in the laser oscillator and corrects the function for characteristics of the laser oscillator.

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