Effect of electric field on plasma control during CO2laser welding

H. C. Tse, Hau Chung Man, Tai Man Yue

Research output: Journal article publicationJournal articleAcademic researchpeer-review

19 Citations (Scopus)


Experimental results showed that an applied electric field can affect the shielding behavior of the laser-produced plasma during laser welding. It was found that at optimum field strength, the penetration depth can be increased by about 8% and the width of bead can also be reduced. In other words, the electric field can be used for enhancing the efficiency of the laser energy coupling to the workpiece. In addition, the influences of the electric field strength, field direction and laser power on the penetration depth and the bead width are reported.
Original languageEnglish
Pages (from-to)181-189
Number of pages9
JournalOptics and Lasers in Engineering
Issue number3
Publication statusPublished - 1 Mar 2000
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Mechanical Engineering
  • Electrical and Electronic Engineering


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