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MODELING OF NANOPARTICLE AGGLOMERATION AND POWDER BED FORMATION IN MICROSCALE SELECTIVE LASER SINTERING SYSTEMS

Exemplified microscale selective laser sintering (?-SLS or micro-SLS) systems and methods facilitate modeling of the nanoparticle powder bed by simulating the interactions between particles during the powder spreading operation. In particular, the exemplified methods and system use multiscale modeling techniques to accurately predict the formation and mechanical/electrical properties of parts produced by selective laser sintering of powder beds. Discrete element modeling is used for nanoscale particle interactions by implementing the different forces dominant at nanoscale. A heat transfer analysis is used to predict the sintering of individual particles in the powder beds in order to build up a complete structural model of the parts that are being produced by the SLS process.


» Number: US2017282247A1 (A1)

» Publication Date: 17//2/05/1

» Applicant: UNIV TEXAS?[US]

» Inventor: CULLINAN MICHAEL A?[US]; YUKSEL ANIL?[US] (1)

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This project has received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement n [310187].