Is the energy density a reliable parameter for materials synthesis by selective laser melting?

Autor:	K. G. Prashanth, S. Scudino, T. Maity, J. Das, J. Eckert
Jazyk:	angličtina
Rok vydání:	2017
Předmět:	Selective laser melting energy density laser power tensile properties Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	Materials Research Letters, Vol 5, Iss 6, Pp 386-390 (2017)
Druh dokumentu:	article
ISSN:	2166-3831 21663831
DOI:	10.1080/21663831.2017.1299808
Popis:	The effective fabrication of materials using selective laser melting depends on the process parameters. Here, we analyse the suitability of the energy density to represent the energy transferred to the powder bed, which is effectively used to melt the particles and to produce the bulk specimens. By properly varying laser power and speed in order to process the powder at constant energy density, we show that the equation currently used to calculate the energy density gives only an approximate estimation and that hatch parameters and material properties should be considered to correctly evaluate the energy density.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/a9a20208ebf640fabdf0f85d48091e73 Zobrazit plný text záznamu View record in DOAJ