変動要因特定方法及びレーザ加工装置

Japanese Patent JP7113320

B2

A control unit is caused to: perform a current control execution step in which drive current feedback control is performed so as to bring a laser output of laser light of a laser oscillator closer to a target value; identify a variation occurrence timing at which, during execution of the current control execution step, an output variation occurred such that a difference between the laser output and the target value exceeds a predetermined threshold value; identify, from a plurality of first physical quantities measured during execution of the current control execution step, an abnormal physical quantity exhibiting an abnormal value within a first monitoring time determined in accordance with the variation occurrence timing; identify, from a plurality of second physical quantities providing a cause for variation of the abnormal physical quantity, a physical quantity exhibiting an abnormal value within a second monitoring time determined in accordance with an abnormality start timing at which the abnormal physical quantity exhibited an abnormal value, as a variation cause; and output information indicating the identified variation cause to an output device.

WO/2009/105608	PROGRESSIVE LASER BLANKING DEVICE FOR HIGH SPEED CUTTING
JPS62168690	LASER CUTTING METHOD FOR THICK PLATE
JP3619916	Welding mechanism

Manabu Nishihara
Kenzo Shibata
King Shizunami
Nishio Masatoshi

JP2021522880A

August 05, 2022

May 28, 2020

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Panasonic IP Management Co., Ltd.

B23K26/00; H01S3/00; H01S5/022; H01S5/0683

JP2017191833A
JP20175141A
JP10190134A

Kenji Kamata
Koichi Nomura

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