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Pbf-lb process-induced regular cavities for lightweight alsi10mg structures

Lubkowitz, Victor; Alber, Jonas; Zanger, Frederik


In powder bed fusion with laser beam (PBF-LB), two process-induced defects by pore formation are known: local spherical pores by the keyhole effect and geometrically undefined pores caused by lack of fusion. Both pore types are heterogeneously distributed and can be used for lightweight or damping design applications. The achievable porosity is limited to around 13%. This article presents a novel process-controlled method enabling the targeted and reproducible manufacturing of solid parts with regularly distributed cavities, currently up to 60% porosity in AlSi10Mg, using the balling effect. This eliminates the need for time-consuming digital pre-processing work.

Verlagsausgabe §
DOI: 10.5445/IR/1000140906
Veröffentlicht am 08.12.2021
DOI: 10.3390/ma14216665
Zitationen: 1
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Produktionstechnik (WBK)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 1996-1944
KITopen-ID: 1000140906
Erschienen in Materials
Verlag MDPI
Band 14
Heft 21
Seiten 6665
Schlagwörter selective laser melting (SLM); process control; aluminum
Nachgewiesen in Web of Science
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