Toyota Jidosha Kabushiki Kaisha

Laser X Company, Ltd.

Fine Device Co., Ltd.

Akihiko Tsuboi

Hiroyuki Suzuki

Masaki Terada

Tsuyoshi Tanigaki

Seijirou Soeda

Jun Hayakawa

Kyouji Kokufuda

Akio Sato

A laser processing system and a laser processing method that can highly accurately and efficiently specify a focus position of a processing laser using visible lasers are provided. For that purpose, a laser processing system includes a processing laser oscillator, a condensing optical system including a condenser lens, two visible laser oscillators and, a movement adjusting unit that adjusts the condenser lens and the visible laser oscillators and to move forward and backward in synchronization with each other, an imaging unit that images spot lights of the visible lasers on a workpiece, an image processing unit that subjects an imaged video to image processing and displays an image after the processing, a calculating unit that calculates, in a state in which the respective visible lasers are focused on a focus position of the processing laser, center of gravity positions of spot lights of the respective visible lasers formed on the surface of the workpiece according to the movement of the condenser lens and calculates a distance between centers of gravity, and a control unit that controls the movement adjusting unit such that the distance between centers of gravity is adjusted to zero or substantially zero.

Laser processing system and laser processing method

A process is for laser-welding resinous members, and includes the steps of overlapping a transparent resinous member on an absorptive resinous material, and irradiating the transparent resinous member with a laser beam, thereby welding an interface between the transparent resinous member and the absorptive resinous member as a strip shape, wherein the energy of the laser beam acting on a side of a major-curvature-radius curved part of the strip-shaped welded interface and the energy of the laser beam acting on a side of a minor-curvature-radius curved part thereof are averaged.

Process for laser welding resinous members, apparatus for the same and laser-welded resinous product

Growing community of inventors

Chiryu, Japan

Akihiko Tsuboi