Abstract
Fused Deposition Modelling (FDM) has attained its reputation due to the capability of rapidly fabricating prototypes from concept design to real parts in shorter time and lower cost than traditional manufacturing processes. This study sheds light on the dynamic mechanical properties of Polyphenylsulfone (PPSF) material fabricated by FDM additive manufacturing process considering the effect of its various process parameters. Three major FDM process parameters are considered in this study, namely, raster angle, raster width and build style. Dynamic Mechanical Analysis is carried out with sweeping temperature at three different fixed frequencies, e.g., 1 Hz, 50 Hz and 100 Hz. Taguchi method is employed for the optimization of process parameters towards achieving better damping properties. Experimental results such as maximum storage modulus, maximum loss modulus, peak of Tan Delta and maximum complex viscosity are captured and the effects of process parameters on these damping properties of PPSF samples are investigated.
Highlights
Additive Manufacturing (AM) is a group of technologies that creates three dimensional objects additively in a layer-by-layer manner
Fused Deposition Modelling (FDM) developed by Stratasys Inc, is a filament based AM system, which offers the possibility of introducing new composite material for the FDM process as long as the new material can be made in feedstock filament form
The X axis is selected as temperature in °C and Y axis can be selected as storage modulus (MPa), Loss modulus (MPa), complex viscosity (MPa*Sec) in any combinations
Summary
Additive Manufacturing (AM) is a group of technologies that creates three dimensional objects additively in a layer-by-layer manner. Fused Deposition Modelling (FDM) developed by Stratasys Inc, is a filament based AM system, which offers the possibility of introducing new composite material for the FDM process as long as the new material can be made in feedstock filament form. FDM has a limited available range of thermoplastic materials such as Polycarbonate (PC), Acrylonitrile Butadiene Styrene (ABS), ULTEM and Polyphenylsulfone (PPSF) (Masood 2014). Feedstock materials under processing in FDM undergo a series of known and unknown thermal and physical changes, which will affect the completed products’ mechanical and damping properties (Masood and Song, 2005). Limited research works have been carried out on products made with PPSF material used by FDM technology. PPSF is one kind of the engineering thermoplastics which offers excellent heat and chemical resistance and good mechanical properties (Stratasys, 2014)
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