Laser processing apparatus and laser processing method

By using output, focusing, and deflection devices in the laser processing apparatus, the laser beam is ensured to move in unison with the conveying speed, thus solving the problem of heating area expansion caused by angular deviation in laser processing. This achieves a stable laser heating effect and is suitable for magnetic domain control and other thermal processing of directional electromagnetic steel plates.

CN122396565APending Publication Date: 2026-07-14NIPPON STEEL CORPORATION

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NIPPON STEEL CORPORATION
Filing Date
2025-02-07
Publication Date
2026-07-14

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Abstract

Disclosed is a technique for laser processing the surface of a processed object being conveyed. According to one aspect of the present disclosure, a laser processing apparatus that processes the surface of a processed object by irradiating the surface with a laser beam includes an output device that outputs the laser beam, a condensing device that condenses the laser beam into a prescribed condensed shape, and a deflection device that moves the irradiation position of the condensed laser beam on the surface of the processed object at the same speed as the conveyance speed of a conveyance device that conveys the processed object in a first direction.
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