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LASERS IN ENGINEERING
OLD CITY PUBLISHING INC
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The factors responsible for modifications to the wettability characteristics of a nickel-titanium (NiTi) medical alloy following CO 2 laser treatment were considered in this work. These modifications have been investigated in terms of the changes in the surface energy components, the surface topography and the surface chemical composition profile. Contact angles, q, were measur…
This paper reports on an investigation of dimensional accuracy in additive manufacturing (AM) specifically an indirect metal laser sintering (IMLS) technique. An experimental programme with a series of simple parts has been carried out to establish dimensional accuracy of metal parts made using the three-dimensional (3-D) systems of indirect SLS process. In parallel basic engin…
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Consolidation behaviour and microstructural characteristics of Al and a mixture of Al-Cu alloy powders following selective laser melting processing
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In this paper we discuss some investigations and analyses of the various parameters, which contribute to increase the coupling efficiency of a laser diode to a single mode fiber-coupling using the lens coupling, which provides a coupling efficiency of about 75% at the optimum working distance. The separation between the coupling optics and the single mode fiber is in the range …
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