Amada Holdings Company Ltd.

Amada Company, Limited

Nisshin Steel Co., Ltd.

Nippon Steel Corporation

Masanori Uehara

Hideo Hara

Hirokazu Sasaki

Hiroshi Horikawa

Hiroshi Asada

Masahito Ito

Laser cutting on a plated steel sheet is executed by cutting the plated steel sheet by irradiating the plated steel sheet covered with a plate metal with laser light at a wavelength in a 1 micrometer band; and emitting assist gas onto a cut surface of the plated steel sheet, the cut surface being formed in the step of cutting, to make the plate metal fused by irradiation of the laser light flow to the cut surface so as to cover the cut surface with the plate metal.

Laser cutting method for plated steel sheet, laser processing head and laser processing device

A laser cut-and-machined product made from a plated steel plate. A cut face of the plated steel plate is coated with plating-layer-containing metal of a top surface of the plated steel plate that is melted and/or evaporated at the time of laser cutting and machining.

Laser cutting and machining method for plated steel plate, laser cut-and-machined product, thermal cutting and machining method, thermal cut-and-machined product, surface-treated steel plate, laser cutting method, and laser machining head

A laser cutting and machining method for plated steel plated, when irradiating a laser beam LB on to the upper surface of a plated steel plate W and laser cutting and machining same: a plating layer-containing metal that has been melted and/or evaporated by the irradiation of the laser beam LB is caused to flow on to a cut surface of the plated steel plate W as a result of assist gas that is jetted towards a laser machining units; and the plating layer-containing metal is coated on the cut surface.

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Kanagawa, Japan

Masanori Uehara