Title:
METHOD FOR CUTTING C-Mn STEEL WITH FIBER LASER
Document Type and Number:
Japanese Patent JP2007144518
Kind Code:
A
Abstract:
To provide a laser cutting method for cutting a carbon-manganese steel which can achieve high cutting speed and cutting quality using a laser source of the ytterbium-based fiber type.
Laser beam generation means comprising at least one silica fiber with an ytterbium-doped core is used to generate a laser beam. Preferably, the ytterbium-based fiber has a wavelength between 1.07 and 1.1 μm, preferably 1.07 μm, the quality factor of the laser beam is between 0.33 and 8 mm.mrad, and the laser beam has a power of between 0.1 and 25 kW. The assistance gas for the laser beam is chosen from nitrogen, helium, argon, oxygen, CO2 and mixtures thereof, and, optionally, it further contains one or more additional compounds chosen from H2 and CH4.
Inventors:
CHOUF KARIM
MAAZAOUI HAKIM
BRIAND FRANCIS
MAAZAOUI HAKIM
BRIAND FRANCIS
Application Number:
JP2006315748A
Publication Date:
June 14, 2007
Filing Date:
November 22, 2006
Export Citation:
Assignee:
AIR LIQUIDE
AIR LIQUIDE WELDING FRANCE
AIR LIQUIDE WELDING FRANCE
International Classes:
B23K26/38; B23K26/08; B23K26/14; H01S3/06; B23K103/04
Domestic Patent References:
| JP2006312197A | 2006-11-16 | |||
| JP2003322734A | 2003-11-14 | |||
| JP2003321248A | 2003-11-11 | |||
| JP2005266645A | 2005-09-29 | |||
| JP2006095601A | 2006-04-13 | |||
| JP2003191090A | 2003-07-08 | |||
| JP2004525766A | 2004-08-26 | |||
| JP2004526574A | 2004-09-02 | |||
| JP2006513863A | 2006-04-27 | |||
| JP2004169093A | 2004-06-17 | |||
| JP2005211962A | 2005-08-11 | |||
| JP2005118818A | 2005-05-12 |
Foreign References:
| WO2004112207A1 | 2004-12-23 |
Other References:
JPN6013049141; 荒谷 雄，外２名: '高出力・高ビーム品質ファイバーレーザの加工特性' 中部レーザ応用技術研究会 第５８回研究会 講演会 予稿集 , 20051109, 中部レーザ応用技術研究会
JPN6013049144; レーザー学会編: レーザーハンドブック（第２版） 第２版, 20050425, ｐ．３０７, 株式会社 オーム社
JPN6013049146; 宮本 勇: '高出力ファイバーレーザーによる加工' Ｏ ｐｌｕｓ Ｅ Ｖｏｌ．２７，Ｎｏ．１１, 20051025, ｐ．１２５３-１２５８, アドコム・メディア株式会社
JPN6013049144; レーザー学会編: レーザーハンドブック（第２版） 第２版, 20050425, ｐ．３０７, 株式会社 オーム社
JPN6013049146; 宮本 勇: '高出力ファイバーレーザーによる加工' Ｏ ｐｌｕｓ Ｅ Ｖｏｌ．２７，Ｎｏ．１１, 20051025, ｐ．１２５３-１２５８, アドコム・メディア株式会社
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Katsu Sunagawa
Ryo Hashimoto
Tetsuya Kazama
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Katsu Sunagawa
Ryo Hashimoto
Tetsuya Kazama