The characterisation and monitoring of Ti6Al4V (ELI) feedstock powder is an essential requirement for the full qualification of medical implants and aerospace components produced in selective laser melting systems. Virgin and reused samples of this powder were characterised by determining their physical and chemical properties through techniques complying with international standards. This paper presents the results obtained for Ti6Al4V (ELI) powder of two different particle size distributions received from the same supplier. The characteristics of these powders after several reuse cycles in two different selective laser melting systems are also presented and discussed. OPSOMMINGDie karakterisering en kontrolering van Ti6Al4V voermateriaalpoeier is ʼn kernvereiste vir die kwalifisering van mediese implantate en ruimtevaartkomponente wat deur middel van selektiewe laser smelt stelsels produseer word. Nuwe en herbruikte monsters van hierdie poeier is gekarakteriseer deur hul fisiese en chemiese eienskappe te bepaal deur tegnieke wat aan internasionale standaarde voldoen. Die resultate vir Ti6Al4V poeiers met verskillende partikelgrootteverdelings van dieselfde verskaffer word hier voorgehou. Die karakteristieke van hierdie poeiers na etlike hergebruik siklusse in twee verskillende selektiewe laser smelt stelsels word ook voorgehou en bespreek.
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