Determinants of the surface quality, density and dimensional correctness in selective laser melting of the Ti-13Zr-13Nb alloy
Author(s) -
Tomasz Seramak,
Katarzyna Zasińska,
M. Mesnard,
Karolina Bednarz,
Paulina Fic,
Andrzej Zieliński
Publication year - 2018
Publication title -
matériaux and techniques
Language(s) - English
Resource type - Journals
eISSN - 1778-3771
pISSN - 0032-6895
DOI - 10.1051/mattech/2018050
Subject(s) - selective laser melting , laser , materials science , alloy , deflection (physics) , power density , energy density , thermal , laser power scaling , quality (philosophy) , composite material , optics , power (physics) , microstructure , engineering physics , engineering , physics , philosophy , epistemology , quantum mechanics , meteorology
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.
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