TY - GEN

T1 - Effect of Particle Size on the Properties of Highly-Filled Polymers for Fused Filament Fabrication

AU - Kukla, Christian

AU - Duretek, Ivica

AU - Schuschnigg, Stephan

AU - Gonzalez-Gutierrez, Joamin

AU - Holzer, Clemens

N1 - Conference code: 32

PY - 2016/7/25

Y1 - 2016/7/25

N2 - Fused Filament Fabrication (FFF) could replace injection moulding for some applications as the shaping step in a process similar to powder injection moulding (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, debound and sintered to obtain stainless steel parts. However, there are many parameters that can affect the performance of the FFF feedstock materials. One important parameter is the particle size distribution of 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 particle size significantly affect the properties of feedstock materials.

AB - Fused Filament Fabrication (FFF) could replace injection moulding for some applications as the shaping step in a process similar to powder injection moulding (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, debound and sintered to obtain stainless steel parts. However, there are many parameters that can affect the performance of the FFF feedstock materials. One important parameter is the particle size distribution of 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 particle size significantly affect the properties of feedstock materials.

KW - additive manufacturing

KW - Fused Filament Fabrication

KW - highly-filled polymer

KW - suspension

KW - viscosity

KW - Mechanical properties

M3 - Conference contribution

VL - 32

BT - 32nd International Conference of the POLYMER PROCESSING SOCIETY

A2 - Maazouz, Abderrahim

CY - Lyon, France

T2 - 32nd International Conference of the Polymer Processing Society

Y2 - 25 July 2016 through 29 July 2016

ER -