Study of the fluence dependent interplay between laser induced material removal mechanisms in metals: Vaporization, melt displacement and melt ejection

J. M. Fishburn, M. J. Withford, D. W. Coutts, J. A. Piper

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Three quantitative methods, namely profilometry, high speed imaging and recoil momentum measurements using a ballistic pendulum, are used to determine the interplay of vaporization, melt displacement and melt ejection on nanosecond laser induced material removal. At low to moderate fluences (<7 J cm-2) material removal occurs via vaporization and melt displacement in aluminium. At high fluences (>7 J cm-2), material removal occurs predominantly via the explosive ejection of liquid droplets from the melt pool.

LanguageEnglish
Pages5182-5188
Number of pages7
JournalApplied Surface Science
Volume252
Issue number14
DOIs
Publication statusPublished - 15 May 2006

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Vaporization
ejection
machining
fluence
Metals
Profilometry
Lasers
pendulums
Pendulums
Ballistics
metals
ballistics
lasers
Momentum
high speed
momentum
Imaging techniques
Liquids
liquids

Cite this

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Study of the fluence dependent interplay between laser induced material removal mechanisms in metals : Vaporization, melt displacement and melt ejection. / Fishburn, J. M.; Withford, M. J.; Coutts, D. W.; Piper, J. A.

In: Applied Surface Science, Vol. 252, No. 14, 15.05.2006, p. 5182-5188.

Research output: Contribution to journalArticleResearchpeer-review

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