LASER WELDING HEAD WITH DUAL MOVABLE MIRRORS PROVIDING BEAM MOVEMENT

The present application relates to a laser welding head (10). The latter comprises movable mirrors (132, 34), which are used to perform welding operations, for example, with wobble patterns and/or seam finding/tracking and following. The movable mirrors (132, 134) provide a wobbling movement of one...

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Bibliographische Detailangaben
Hauptverfasser:	GRAPOV, Yuri, STUKALIN, Felix, PRUYN, Kris, HINRICHSEN, Erik
Format:	Patent
Sprache:	eng ; fre ; ger
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:	The present application relates to a laser welding head (10). The latter comprises movable mirrors (132, 34), which are used to perform welding operations, for example, with wobble patterns and/or seam finding/tracking and following. The movable mirrors (132, 134) provide a wobbling movement of one or more beams (118) within a relatively small field of view, for example, defined by a scan angle of 1-2°. The movable mirrors (132, 134) may be galvanometer mirrors that are controllable by a control system (160) including a galvo controller. The laser welding head (110) may also include a diffractive optical element to shape the beam or beams (118) being moved. The control system (160) may also be used to control the fiber laser (112), for example, in response to the position of the beams (118) elative to the workpiece (102) and/or a sensed condition in the welding head (110) such as a thermal condition proximate one of the mirrors (132, 134).