LASER PIERCING METHOD AND DEVICE THEREFOR

PROBLEM TO BE SOLVED: To provide an efficient laser piercing method and device therefor by removing such obstacles as rust, marking and paint adhered to the surface of a material to be machined before piercing. SOLUTION: The method and the device are constituted of an obstacle removing process, in w...

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Bibliographische Detailangaben
1. Verfasser:	SAKAI DAIJI
Format:	Patent
Sprache:	eng
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an efficient laser piercing method and device therefor by removing such obstacles as rust, marking and paint adhered to the surface of a material to be machined before piercing. SOLUTION: The method and the device are constituted of an obstacle removing process, in which a laser beam 1 is emitted with a spot diameter larger than the piercing diameter that the focal position F of a laser beam 1 is moved against a material W to be pierced and in which an assist gas 2 is also injected, and a piercing process in which, the laser beam 1 is jetted to the material W with a prescribed spot diameter that, after the obstacle removing process, the focal position F is moved to a piercing position and in which the assist gas 2 is also jetted.