Investigation on welding phenomenon for aluminum alloy by superposition of pulsed YAG laser and diode laser

Shin Haraguchi, Yasuhiro Okamoto, Yoshiyuki Uno, Tomokazu Sakagawa, Shin Ichi Nakashiba

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

Pulsed Nd: YAG laser and continuous diode laser were spatially superposed for higher absorption to aluminum alloy. 12-20% increase in bead width and 15-30% increase in weld depth could be obtained by superposition of continuous diode laser and pulsed Nd: YAG laser. Moreover, the unsteady thermal analysis with key-hole effect indicated that the temperature of specimen surface with continuous diode laser could be kept approximately 300K higher than that without continuous diode laser. Therefore, it was clarified that the bead width and depth would increase greatly due to higher absorption of Nd: YAG laser to aluminum alloy by superposition of diode laser.

Original languageEnglish
Publication statusPublished - Dec 1 2009
Event5th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2009 - Osaka, Japan
Duration: Dec 2 2009Dec 4 2009

Other

Other5th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2009
CountryJapan
CityOsaka
Period12/2/0912/4/09

Keywords

  • Aluminum alloy
  • High-efficient welding
  • LD
  • Pulsed Nd: YAG laser
  • Thermal analysis

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

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