Liquid metal expulsion during laser irradiation

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

During laser assisted materials processing such as welding, cutting, drilling, or surface alloying, the processing conditions are adjusted to either achieve or avoid liquid metal expulsion. Currently, there is no theoretical model to determine, from fundamental principles, the operating conditions for the initiation of liquid metal expulsion during laser irradiation. Processing conditions necessary for the initiation of liquid metal expulsion during pulsed laser irradiation have been investigated experimentally and theoretically. Lead, titanium, and stainless steel samples were irradiated by single and multiple pulses of varying pulse durations to investigate conditions for liquid metal expulsion. It is demonstrated that using theoretically computed transient spatial temperature profiles, and by balancing surface tension and recoil forces, the conditions for the initiation of liquid metal expulsion can be determined.

Original languageEnglish (US)
Pages (from-to)3317-3322
Number of pages6
JournalJournal of Applied Physics
Volume72
Issue number8
DOIs
StatePublished - Dec 1 1992

Fingerprint

expulsion
liquid metals
irradiation
lasers
steels
drilling
welding
temperature profiles
alloying
stainless steels
pulsed lasers
interfacial tension
pulse duration
titanium
pulses

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

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abstract = "During laser assisted materials processing such as welding, cutting, drilling, or surface alloying, the processing conditions are adjusted to either achieve or avoid liquid metal expulsion. Currently, there is no theoretical model to determine, from fundamental principles, the operating conditions for the initiation of liquid metal expulsion during laser irradiation. Processing conditions necessary for the initiation of liquid metal expulsion during pulsed laser irradiation have been investigated experimentally and theoretically. Lead, titanium, and stainless steel samples were irradiated by single and multiple pulses of varying pulse durations to investigate conditions for liquid metal expulsion. It is demonstrated that using theoretically computed transient spatial temperature profiles, and by balancing surface tension and recoil forces, the conditions for the initiation of liquid metal expulsion can be determined.",
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Liquid metal expulsion during laser irradiation. / Basu, S.; Debroy, Tarasankar.

In: Journal of Applied Physics, Vol. 72, No. 8, 01.12.1992, p. 3317-3322.

Research output: Contribution to journalArticle

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AU - Basu, S.

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