Abstract
Selective laser melting is widely used for custom-designed elements. Successful manufacturing depends on laser treatment parameters and material features. This research aimed to determine the effects of laser power, scan time and hatch distance on surface quality, relative density and dimensional precision for cuboids made of the Ti-13Zr-13Nb alloy. The influence of energy density, energy flux and pre-heating was seen to be decisive to different degrees for the quality of the final specimen. The results obtained were used to produce prosthetic crowns and bridges. The thermal stresses that appeared resulted in a deflection of the bridges and consequently in a change in design approach.
Highlights
The dental, joint and maxillofacial implants are made either by foundry or by CNC technique
Résultats de l’analyse QFD pour différents paramètres de traitement
The best surface quality was achieved with laser treatment at laser power 80 W, scan time 100 ms and hatch distance 40 mm, with high dimensional quality and straightness of melting
Summary
The dental, joint and maxillofacial implants are made either by foundry or by CNC technique. The manufacturing of medical goods by SLM is the cheapest of the above techniques as some details may be obtained at the same. When comparing three manufacturing methods for some dental Co-Cr details, conventional casting, laser sintering and CAD/CAM milled technique, the significant differences in mechanical properties were observed, but all techniques were able to produce the. Alliages de titane mis en forme par selective laser melting
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