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Graphite has a large spectrum of applications, being used from automotive industry to the electronics field. Their characteristics lead to their application as a key component on some fuel cells architecture. Being a non-contact processing technique, the laser appears as an interesting replacing tool to open channels on graphite plates. In this work, CO2 and Nd:YAG lasers were tested in order to obtain...
Our study has shown that the influence of the thermal stresses and expansion and contraction forces acting during and after laser action plays an ultimate role on the achievement of strong welds, that is, weld with tensile strength higher than 80% of that of the original thermoplastic. This has direct influence on engineering parameters, making necessary to have a minimum laser beam diameter on the...
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