TY - GEN

T1 - FILLER CONTENT AND PROPERTIES OF HIGHLY FILLED FILAMENTS FOR FUSED FILAMENT FABRICATION OF MAGNETS

AU - Gonzalez-Gutierrez, Joamin

AU - Duretek, Ivica

AU - Arbeiter, Florian

AU - Kukla, Christian

AU - Holzer, Clemens

PY - 2017/5/9

Y1 - 2017/5/9

N2 - Fused filament fabrication (FFF) is a very popular additive manufacturing technique for the production of geometrically complex polymeric parts. FFF can also be used for the production of sintered magnetic parts, as part of the shaping, debinding and sintering (SDS) process. In order for sintering to be possible, it is recommended to prepare feedstock materials with 50 vol% or more filler content. However, when the filler content increases the properties required for FFF change. In this paper the mechanical properties of filaments, the viscosity of the molten feedstock, and surface properties of the solidified feedstock were investigated as a function of strontium ferrite powder content (53 to 60vol%). In addition printing trials were performed. It was observed that mechanical properties significantly decrease, the viscosity increases and the surface tension showed no changes as a function of powder loading. All materials were in principle printable, but the printing temperature had to be adjusted to print the most highly filled material due to its lower mechanical properties and higher viscosity.

AB - Fused filament fabrication (FFF) is a very popular additive manufacturing technique for the production of geometrically complex polymeric parts. FFF can also be used for the production of sintered magnetic parts, as part of the shaping, debinding and sintering (SDS) process. In order for sintering to be possible, it is recommended to prepare feedstock materials with 50 vol% or more filler content. However, when the filler content increases the properties required for FFF change. In this paper the mechanical properties of filaments, the viscosity of the molten feedstock, and surface properties of the solidified feedstock were investigated as a function of strontium ferrite powder content (53 to 60vol%). In addition printing trials were performed. It was observed that mechanical properties significantly decrease, the viscosity increases and the surface tension showed no changes as a function of powder loading. All materials were in principle printable, but the printing temperature had to be adjusted to print the most highly filled material due to its lower mechanical properties and higher viscosity.

KW - Fused Filament Fabrication

KW - Magnets

KW - Viscosity

KW - Tensile property

M3 - Conference contribution

BT - ANTEC® 2017

CY - Anaheim, California, USA

T2 - SPE ANTEC 2017

Y2 - 8 May 2017 through 10 May 2017

ER -