Power control method for fiber laser processing machine, and fiber laser processing machine
First Claim
1. A power control method for a fiber laser processing machine comprising:
- a fiber laser oscillator having a plurality of fiber laser modules each of which generates a laser beam;
a laser processing head for emitting the laser beam generated from said fiber laser oscillator;
a condenser lens with a prescribed focal length provided between a workpiece and said laser processing head, for irradiating said workpiece with the laser beam having a spot diameter output from said laser processing head; and
an assist gas supply portion for blowing away molten material from the workpiece, whereinthe number of said plurality of fiber laser modules oscillated is adjusted so as to achieve the spot diameter corresponding to a thickness of the workpiece and a pressure of the assist gas, and thereby, a beam quality indicated by an M square value from said laser processing head is adjusted.
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Accused Products
Abstract
There is provided a power control method for a fiber laser processing machine including: a fiber laser oscillator having a plurality of fiber laser modules each of which generates a laser beam; a laser processing head for emitting the laser beam generated from the fiber laser oscillator; and a condenser lens with a prescribed focal length provided between a workpiece and the laser processing head, for irradiating the workpiece with the laser beam having a spot diameter output from the laser processing head, wherein the number of the plurality of fiber laser modules oscillated is adjusted so as to achieve the spot diameter corresponding to the workpiece, and thereby, a beam quality from the laser processing head is adjusted.
7 Citations
10 Claims
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1. A power control method for a fiber laser processing machine comprising:
- a fiber laser oscillator having a plurality of fiber laser modules each of which generates a laser beam;
a laser processing head for emitting the laser beam generated from said fiber laser oscillator;
a condenser lens with a prescribed focal length provided between a workpiece and said laser processing head, for irradiating said workpiece with the laser beam having a spot diameter output from said laser processing head; and
an assist gas supply portion for blowing away molten material from the workpiece, whereinthe number of said plurality of fiber laser modules oscillated is adjusted so as to achieve the spot diameter corresponding to a thickness of the workpiece and a pressure of the assist gas, and thereby, a beam quality indicated by an M square value from said laser processing head is adjusted. - View Dependent Claims (2, 3, 4, 5)
- a fiber laser oscillator having a plurality of fiber laser modules each of which generates a laser beam;
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6. A fiber laser processing machine, comprising:
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a fiber laser oscillator having a plurality of fiber laser modules each of which generates a laser beam; a laser processing head for emitting the laser beam generated from said fiber laser oscillator; a condenser lens with a prescribed focal length provided between a workpiece and said laser processing head, for irradiating said workpiece with the laser beam having a spot diameter output from said laser processing head; an assist gas supply portion for blowing away molten material from the workpiece; and a control device capable of adjusting a beam quality indicated by an M square value from said laser processing head in accordance with the number of said plurality of fiber laser modules oscillated, wherein said control device adjusts the number of said plurality of fiber laser modules oscillated so as to achieve the spot diameter corresponding to a thickness of the workpiece and a pressure of the assist gas. - View Dependent Claims (7, 8, 9, 10)
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Specification