Effect of the combination of different welding parameters on melting characteristics of grade 1 titanium with a pulsed Nd-Yag laser
作者： C. Bertrand , O. Laplanche , J. P. Rocca , Y. Le Petitcorps , S. Nammour
DOI: 10.1007/S10103-006-0438-2
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摘要: The laser is a very attractive tool for joining dental metallic alloys. However, the choice of setting parameters can hardly influence welding performances. aim this research was to evaluate impact several (pulse shaping, pulse frequency, focal spot size...) on quality microstructure. Grade 1 titanium plates have been welded with pulsed Nd-Yag laser. Suitable power, duration, size, and flow argon gas were fixed by operator. Five different shapes three frequencies investigated. Two available unit eliminated because they considerably hardened metal. As frequency rose, metal more ejected, plasma surface increased oxygen contamination in area. Frequencies or 2 Hz are optimum use. Three be used but rectangular shape gives better results.
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