Title:
LASER CUTTING METHOD AND LASER CUTTING EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2010/095744
Kind Code:
A1
Abstract:
Disclosed are a cutting method and cutting equipment for cutting steel sheet using a solid-state laser or fibre laser. In this cutting method, a laser beam that is emitted from a solid-state laser oscillator or fibre laser oscillator is formed into a ring beam (1). This ring beam (1) is directed onto a material (4) that is to be cut. Oxygen gas (2) is jetted along the axis (5) thereof. This cutting equipment has: a laser oscillator (11), a laser torch (12) having a nozzle (3), an optical system that has a conical prism (13) that is constructed between the laser oscillator (11) and the nozzle (3), a convex lens (14) and an optical fibre (15); and an oxygen gas supply system (17) that is connected with the laser torch (12). The laser beam that is emitted from the laser oscillator is formed, by means of the optical system, into the ring beam (1) and is directed from the nozzle (3) towards the material (4) that is to be cut, and the material (4) is cut by jetting the oxygen gas (2) that is supplied from the oxygen gas supply system (17) from the nozzle (3) towards the material (4) that is to be cut.
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Inventors:
KIMURA, seiichiro (3-35-16, Nishikoiwa, Edogawa-k, Tokyo 57, 〒1330057, JP)
木村 盛一郎 (〒57 東京都江戸川区西小岩３－３５－１６ 小池酸素工業株式会社内 Tokyo, 〒1330057, JP)
TANAKA, akito (3-35-16, Nishikoiwa, Edogawa-k, Tokyo 57, 〒1330057, JP)
木村 盛一郎 (〒57 東京都江戸川区西小岩３－３５－１６ 小池酸素工業株式会社内 Tokyo, 〒1330057, JP)
TANAKA, akito (3-35-16, Nishikoiwa, Edogawa-k, Tokyo 57, 〒1330057, JP)
Application Number:
JP2010/052673
Publication Date:
August 26, 2010
Filing Date:
February 23, 2010
Export Citation:
Assignee:
Koike Sanso Kogyo Co., Ltd. (3-35-16, Nishikoiwa Edogawa-k, Tokyo 57, 〒1330057, JP)
小池酸素工業株式会社 (〒57 東京都江戸川区西小岩３－３５－１６ Tokyo, 〒1330057, JP)
KIMURA, seiichiro (3-35-16, Nishikoiwa, Edogawa-k, Tokyo 57, 〒1330057, JP)
木村 盛一郎 (〒57 東京都江戸川区西小岩３－３５－１６ 小池酸素工業株式会社内 Tokyo, 〒1330057, JP)
小池酸素工業株式会社 (〒57 東京都江戸川区西小岩３－３５－１６ Tokyo, 〒1330057, JP)
KIMURA, seiichiro (3-35-16, Nishikoiwa, Edogawa-k, Tokyo 57, 〒1330057, JP)
木村 盛一郎 (〒57 東京都江戸川区西小岩３－３５－１６ 小池酸素工業株式会社内 Tokyo, 〒1330057, JP)
International Classes:
B23K26/38; B23K26/06; B23K26/073; B23K26/14; B23K103/04
Attorney, Agent or Firm:
NAKAGAWA INTERNATIONAL PATENT OFFICE (Landic Toranomon 2nd Building 5F, 3-7-8 Toranomon, Minato-k, Tokyo 01, 〒1050001, JP)
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