ＣＯ２レーザ加工における照射部温度と吸収率

• 山田 啓司

  金沢大学工学部

• 小谷 祐司

  (株)フクダ電子

• 上田 隆司

  金沢大学工学部

書誌事項

タイトル別名

• Temperature and Absorptivity of Workpiece in CO2 Laser Processing.
• CO2 レーザ カコウ ニ オケル ショウシャブ オンド ト キュウシュウリツ

抄録

The temperature of workpiece irradiated with CO₂ laser is measured using a new type of infrared radiation pyrometer with an optical fiber. In the pyrometer, a chalcogenide optical fiber and a two-color detector which consists of InSb and InAs detector are used. The power intensity of the laser beam during the exposure time and the two dimensional picture of the intensity distribution of the laser beam are measured experimentally. The measuring system for the intensity distribution of laser beam consists of MCT cell and an optical fiber. The temperature distribution on the workpiece irradiated with laser is calculated numerically using FEM for unsteady state. The change of physical properties of materials is considered. Comparing the experimental results with the calculated ones, the absorptivity of the work material for CO₂ laser is obtained.

収録刊行物

• 精密工学会誌

  精密工学会誌 65 (1), 126-130, 1999

  公益社団法人 精密工学会

キーワード

• CO<SUB>2</SUB> laser processing
• temperature measurement
• absorptivity
• finite element method
• two-color detector
• chalcogenide optical fiber

詳細情報

• CRID: 1390282679740630784
• NII論文ID: 110001368009
• NII論文ID: 10005310024
• NII論文ID: 120005469727
• NII書誌ID: AN1003250X
• DOI: 10.2493/jjspe.65.126
• ISSN: 1882675X
• ISSN: 09120289
• NDL書誌ID: 971092
• Web Site: http://hdl.handle.net/2297/39331
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I971092
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可