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Proceedings Paper

Influence of laser power on the penetration depth and geometry of scanning tracks in selective laser melting
Author(s): Wojciech Stopyra; Jarosław Kurzac; Konrad Gruber; Tomasz Kurzynowski; Edward Chlebus
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Paper Abstract

SLM technology allows production of a fully functional objects from metal and ceramic powders, with true density of more than 99,9%. The quality of manufactured items in SLM method affects more than 100 parameters, which can be divided into fixed and variable. Fixed parameters are those whose value before the process should be defined and maintained in an appropriate range during the process, e.g. chemical composition and morphology of the powder, oxygen level in working chamber, heating temperature of the substrate plate. In SLM technology, five parameters are variables that optimal set allows to produce parts without defects (pores, cracks) and with an acceptable speed. These parameters are: laser power, distance between points, time of exposure, distance between lines and layer thickness. To develop optimal parameters thin walls or single track experiments are performed, to select the best sets narrowed to three parameters: laser power, exposure time and distance between points. In this paper, the effect of laser power on the penetration depth and geometry of scanned single track was shown. In this experiment, titanium (grade 2) substrate plate was used and scanned by fibre laser of 1064 nm wavelength. For each track width, height and penetration depth of laser beam was measured.

Paper Details

Date Published: 8 December 2016
PDF: 7 pages
Proc. SPIE 10159, Laser Technology 2016: Progress and Applications of Lasers, 101590R (8 December 2016); doi: 10.1117/12.2262079
Show Author Affiliations
Wojciech Stopyra, Wrocław Univ. of Science and Technology (Poland)
Jarosław Kurzac, Wrocław Univ. of Science and Technology (Poland)
Konrad Gruber, Wrocław Univ. of Science and Technology (Poland)
Tomasz Kurzynowski, Wrocław Univ. of Science and Technology (Poland)
Edward Chlebus, Wrocław Univ. of Science and Technology (Poland)


Published in SPIE Proceedings Vol. 10159:
Laser Technology 2016: Progress and Applications of Lasers
Ryszard S. Romaniuk; Krzysztof Kopczynski; Jan K. Jabczyński; Zygmunt Mierczyk, Editor(s)

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