Show simple item record

dc.contributor.authorBERTHE, Laurent
dc.contributor.authorFABBRO, Rémy
dc.contributor.authorMULLER, Maryse
dc.contributor.author
 hal.structure.identifier
NIVARD, Mariette
428 Laboratoire pour l'application des lasers de puissance [LALP]
dc.contributor.author
 hal.structure.identifier
SCHNEIDER, Matthieu
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
dc.date.accessioned2013
dc.date.available2013
dc.date.issued2007
dc.date.submitted2013
dc.identifier.issn1042-346X
dc.identifier.urihttp://hdl.handle.net/10985/6827
dc.descriptionVersion éditeur : http://jla.aip.org/resource/1/jlapen/v19/i3/p165_s1?isAuthorized=no
dc.description.abstractThis article deals with the gas effect on percussion laser drilling in ms pulse duration range. On the one hand, the flow of assistance gas jet is investigated with and without a target using a strioscopy setup and Pitot’s tube. By this way, the position of shock waves in the supersonic jet and near the target surface is revealed. From this characterization, the distance between exit nozzle and target can be optimized to induce higher pressure on surface and protect optics from liquid ejection. On the other hand, metal liquid and vapor jets from irradiated target are observed with a high-speed camera (100 000 Img/sec). Without assistance gas, a surprising result on the video is a shock wave inside the metal vapor jet like a supersonic flow. The assistance gas limits the propagation of the vapor and facilitates the deposition of metallic liquid around the front surface holes.
dc.language.isoen
dc.publisherLaser Institute of America
dc.rightsPost-print
dc.subjectlaser drilling
dc.subjectassistant gas
dc.subjectmetallic vapor
dc.subjectshock wave
dc.titleGas investigation for laser drilling
dc.identifier.doi10.2351/1.2567844
dc.typdocArticle dans une revue avec comité de lecture
dc.localisationCentre de Paris
dc.subject.halSciences de l'ingénieur: Génie des procédés
dc.subject.halSciences de l'ingénieur: Mécanique: Mécanique des fluides
dc.subject.halSciences de l'ingénieur: Mécanique: Thermique
ensam.audienceInternationale
ensam.page5
ensam.journalJournal of Laser Applications
ensam.volume19
ensam.issue3
hal.identifierhal-00794962
hal.version1
hal.submission.permittedupdateMetadata
hal.statusaccept


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record