Laser cutting method

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United States of America Patent

PATENT NO 9821409
SERIAL NO

14344148

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Abstract

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A laser cutting method and a laser cutting apparatus cut a metallic work with a laser beam of a one-micrometer waveband. The method and apparatus carry out the laser cutting of the work with a ring beam RB passed through a focus position of a condenser lens 13 and having inner and outer diameters that tend to expand. The outer diameter of the ring beam is in a range of 300 μm (micrometers) to 600 μm, an inner diameter ratio of the same is in a range of 30 % to 70 %, and a focal depth of the condenser lens is in a range of 2 mm to 5 mm.

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Patent Owner(s)

Patent OwnerAddress
AMADA COMPANY LIMITEDKANAGAWA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishiguro, Hiroaki Kanagawa, JP 23 155
Sugiyama, Akihiko Kanagawa, JP 130 1654

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