Effect of particle size on the properties of highly-filled polymers for fused filament fabrication | Zendy

Christian Kukla | Zendy; Joamin González-Gutiérrez | Zendy; Ivica Đuretek | Zendy; Stephan Schuschnigg | Zendy; Clemens Holzer | Zendy

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Effect of particle size on the properties of highly-filled polymers for fused filament fabrication

Author(s) -

Christian Kukla,

Joamin González-Gutiérrez,

Ivica Đuretek,

Stephan Schuschnigg,

Clemens Holzer

Publication year - 2017

Publication title -

aip conference proceedings

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.177

H-Index - 75

eISSN - 1551-7616

pISSN - 0094-243X

DOI - 10.1063/1.5016795

Subject(s) - materials science , fused filament fabrication , fabrication , raw material , composite material , ceramic , particle size , sintering , polymer , molding (decorative) , viscosity , particle (ecology) , particle size distribution , protein filament , filler (materials) , chemical engineering , chemistry , organic chemistry , medicine , alternative medicine , oceanography , pathology , engineering , geology

Fused Filament Fabrication (FFF) could replace injection molding as the shaping step in a process similar to powder injection molding (PIM). Herein after shaping by using a highly-filled polymer the part is debound and sintered to obtain a solid part of metal or ceramic. New feedstock materials have been developed that can be printed using conventional FFF equipment. And after debinding and sintering stainless steel parts can be obtained. However, there are many parameters that can affect the performance of the FFF feedstock materials. One important parameter is the particle size distribution of the filler particles. In this paper, feedstocks containing 316L steel powder with different particle size distributions were characterized in terms of viscosity and mechanical properties, and tested regarding the printability using a conventional FFF machine. It has been observed that the particle size significantly affects the properties of feedstock materials and thus their ability to be printed.Fused Filament Fabrication (FFF) could replace injection molding as the shaping step in a process similar to powder injection molding (PIM). Herein after shaping by using a highly-filled polymer the part is debound and sintered to obtain a solid part of metal or ceramic. New feedstock materials have been developed that can be printed using conventional FFF equipment. And after debinding and sintering stainless steel parts can be obtained. However, there are many parameters that can affect the performance of the FFF feedstock materials. One important parameter is the particle size distribution of the filler particles. In this paper, feedstocks containing 316L steel powder with different particle size distributions were characterized in terms of viscosity and mechanical properties, and tested regarding the printability using a conventional FFF machine. It has been observed that the particle size significantly affects the properties of feedstock materials and thus their ability to be printed.

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