Optimization of selective laser sintering process conditions using stable sintering region approach

Lupone, F.; Padovano, E.; Pietroluongo, M.; Giudice, S.; Ostrovskaya, O.; Badini, C.

doi:10.3144/expresspolymlett.2021.16

The optimization of process parameters represents one of the major drawbacks of selective laser sintering (SLS) technology since it is largely empirical and based on performing a series of trial-and-error builds. This approach is time con-suming, costly, and it ignores the properties of starting powders. This paper provides new results into the prediction of processing conditions starting from the material properties. The stable sintering region (SSR) approach has been applied to two different polymer-based powders: a polyamide 12 filled with chopped carbon fibers and polypropylene. This study shows that the laser exposure parameters suitable for successful sintering are in a range that is significantly smaller than the SSR. For both powders, the best combination of mechanical properties, dimensional accuracy, and porosity level are in fact, achieved by using laser energy density values placed in the middle of the SSR.

Optimization of selective laser sintering process conditions using stable sintering region approach / Lupone, F.; Padovano, E.; Pietroluongo, M.; Giudice, S.; Ostrovskaya, O.; Badini, C.. - In: EXPRESS POLYMER LETTERS. - ISSN 1788-618X. - 15:2(2021), pp. 177-192.

Titolo:	Optimization of selective laser sintering process conditions using stable sintering region approach
Autori:	LUPONE, FEDERICO PADOVANO, ELISA PIETROLUONGO, MARIO Giudice S. OSTROVSKAYA, OXANA BADINI, CLAUDIO FRANCESCO mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2021
Rivista:	EXPRESS POLYMER LETTERS
Digital Object Identifier (DOI):	http://dx.doi.org/10.3144/expresspolymlett.2021.16
Appare nelle tipologie:	1.1 Articolo in rivista

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