Precision cutting of thin plate of copper by single mode fiber laser with newly designed nozzle

H. Tahara, Y. Uno, Y. Okamoto, K. Shiwayama

Research output: Contribution to conferencePaper

Abstract

The fundamental characteristics of laser cutting for thin copper plate by a Q-switched single-mode fiber laser were experimentally investigated, and the effects of the nozzle shape on cutting results were also discussed. High speed cutting of 29 nun s could be carried out with a newly designed nozzle, since high assist gas pressure could be supplied on the workpiece without MSD. Nozzle Laval 800 makes it possible to cut more efficient, since the melted material in the kerf decreases compared to a traditional convergent nozzle. Using a Q-switched single-mode fiber laser, the kerf is very fine, and color change around the kerf is hardly observed by oxidation due to little heat conduction from dross. Therefore, it proved to be available in cutting of thin metal plate.

Original languageEnglish
Pages273-278
Number of pages6
Publication statusPublished - Dec 1 2005
Event3rd International Conference on Leading Edge Manufacturing in 21st Century, LEM 2005 - Nagoya, Japan
Duration: Oct 19 2005Oct 22 2005

Other

Other3rd International Conference on Leading Edge Manufacturing in 21st Century, LEM 2005
CountryJapan
CityNagoya
Period10/19/0510/22/05

Keywords

  • Assist gas flow
  • Dross
  • Fiber laser
  • Nozzle shape
  • Precision cutting

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

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    Tahara, H., Uno, Y., Okamoto, Y., & Shiwayama, K. (2005). Precision cutting of thin plate of copper by single mode fiber laser with newly designed nozzle. 273-278. Paper presented at 3rd International Conference on Leading Edge Manufacturing in 21st Century, LEM 2005, Nagoya, Japan.