Effect of continuous diode laser on crack generation in pulsed Nd:YAG laser welding of aluminum alloy

Kazuya Miura, Yasuhiro Okamoto, Shin Ichi Nakashiba, Tomokazu Sakagawa, Akira Okada, Yoshiyuki Uno

Research output: Contribution to conferencePaper

Abstract

A continuous diode laser was superposed on a pulsed Nd:YAG laser in aluminum welding because of its high efficient absorptivity to aluminum alloy, and effects of diode laser on the crack generation were investigated. The superposition of continuous diode laser would keep the specimen at the high temperature after the Nd:YAG laser pulse, and the temperature of irradiated area could be decreased gradually, which led to the gentle stress distribution. Therefore, it was clarified that cracks on the surface in a pulsed Nd:YAG laser welding of aluminum alloy could be decreased by the superposition of continuous diode laser.

Original languageEnglish
Publication statusPublished - Dec 1 2011
Event6th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2011 - Omiya Sonic City, Saitama, Japan
Duration: Nov 8 2011Nov 10 2011

Other

Other6th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2011
CountryJapan
CityOmiya Sonic City, Saitama
Period11/8/1111/10/11

Keywords

  • Aluminum alloy
  • Crack
  • FEM analysis
  • High quality welding
  • LD
  • Pulsed Nd:YAG laser

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

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  • Cite this

    Miura, K., Okamoto, Y., Nakashiba, S. I., Sakagawa, T., Okada, A., & Uno, Y. (2011). Effect of continuous diode laser on crack generation in pulsed Nd:YAG laser welding of aluminum alloy. Paper presented at 6th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2011, Omiya Sonic City, Saitama, Japan.