Majakkatyyppinen skanneri pyörivällä peilillä ja rengasmaisella kohtiolla

The present invention introduces a scanning arrangement and a method suitable for coating processes applying laser ablation. The arrangement is suited to prolonged, industrial processes. The arrangement comprises a target, which has an annular form. The laser beam direction is controlled by a rotati...

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Hauptverfasser: CLARKE, Fergus, PIIRTO, Jarkko, KEKKONEN, Ville, LIIMATAINEN, Jari
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Sprache:fin ; swe
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creator CLARKE, Fergus
PIIRTO, Jarkko
KEKKONEN, Ville
LIIMATAINEN, Jari
description The present invention introduces a scanning arrangement and a method suitable for coating processes applying laser ablation. The arrangement is suited to prolonged, industrial processes. The arrangement comprises a target, which has an annular form. The laser beam direction is controlled by a rotating mirror locating along the center axis of the annular target. The scanning line will rotate circularly along the inner target surface when the mirror rotates. The focal point of the laser beams may be arranged to locate on the inner target surface to ensure a constant spot size. A ring-formed, a cylinder-shaped or a cut conical-shaped target may be used. The inner surface of the target may thus be tapered in order to control the release direction of the ablated material towards a substrate to be coated.
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subjects CHEMICAL SURFACE TREATMENT
CHEMISTRY
CLADDING OR PLATING BY SOLDERING OR WELDING
COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
COATING MATERIAL WITH METALLIC MATERIAL
COATING METALLIC MATERIAL
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
DIFFUSION TREATMENT OF METALLIC MATERIAL
INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
METALLURGY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PERFORMING OPERATIONS
PHYSICS
SOLDERING OR UNSOLDERING
SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
TRANSPORTING
WELDING
WORKING BY LASER BEAM
title Majakkatyyppinen skanneri pyörivällä peilillä ja rengasmaisella kohtiolla
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