BERTRAND, Caroline; LAPLANCHE, O.; ROCCA, J. P.; LE PETITCORPS, Yann; NAMMOUR, S.

doi:10.1007/s10103-006-0438-2

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BERTRAND, Caroline
Laboratoire d'analyse des surfaces et interfaces en Odontologie [LASIO]

LAPLANCHE, O.
Laboratoire d'analyse des surfaces et interfaces en Odontologie [LASIO]

ROCCA, J. P.
Laboratoire d'analyse des surfaces et interfaces en Odontologie [LASIO]

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Lasers in Medical Science. 2007, vol. 22, p. 237–244

Springer Verlag

Résumé en anglais

The laser is a very attractive tool for joining dental metallic alloys. However, the choice of the setting parameters can hardly influence the welding performances. The aim of this research was to evaluate the impact of several parameters (pulse shaping, pulse frequency, focal spot size...) on the quality of the microstructure. Grade 1 titanium plates have been welded with a pulsed Nd–Yag laser. Suitable power, pulse duration, focal spot size, and flow of argon gas were fixed by the operator. Five different pulse shapes and three pulse frequencies were investigated. Two pulse shapes available on this laser unit were eliminated because they considerably hardened the metal. As the pulse frequency rose, the metal was more and more ejected, and a plasma on the surface of the metal increased the oxygen contamination in the welded area...< Réduire

Mots clés en anglais

Laser welding

Nd-Yag laser

Pulse shape

Pulse frequency

Focal spot size

Titanium

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Effect of the combination of different welding parameters on melting characteristics of grade 1 titanium with a pulsed Nd-Yag laser

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