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LASERS IN ENGINEERING

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66 papers
Lasers in Engineering·2013Open access
Enhancement of the wettability characteristics of a nickel-titanium (NiTi) medical implant alloy by laser surface alloying with molybdenum (Mo) and Niobium (Nb)

Ka Wai Ng, J. Lawrence, H.C. Man, T.M. Yue et al.

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…

1 citations · source snapshot
Influence of Distortion on Part Accuracy for Indirect Metal Laser Sintering

Kristison Zakaria, Kenny Dalgarno

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…

0 citations · source snapshot
Investigation of the application of Nd : YAG laser welding to couple photonic devices and packaging

Mohammed M. Fadhali, Jasman Zainal, Yusuf B. Munajat, Jalil B. Ali et al.

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 …

3 citations · source snapshot
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