Effect of process parameters to flexural strength of 3D printed anatomical bone part

Training and practice on synthetic anatomical bone before perform real medical operation is useful for medical student and recently become part of medical procedure. Since there are various factors to considered, the attempt to imitate anatomical bone from medical image data of patient, using techno...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2019-10, Vol.635 (1), p.12034
Main Authors: Tajarernmuang, T, Sawangrat, C, Jomjunyong, S
Format: Article
Language:English
Subjects:
3-D printers
Density
Design analysis
Design of experiments
Factorial experiments
Femur
Flexural strength
Fused deposition modeling
Lactic acid
Mechanical properties
Medical imaging
Medical research
Modulus of rupture in bending
Printers
Process parameters
Rapid prototyping
Redevelopment
Regression models
Statistical analysis
Three dimensional models
Three dimensional printing
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Summary:Training and practice on synthetic anatomical bone before perform real medical operation is useful for medical student and recently become part of medical procedure. Since there are various factors to considered, the attempt to imitate anatomical bone from medical image data of patient, using technology that based on Fused Deposition Modelling (FDM) is alternatively developed. Since durability and qualities of 3D printed model depend on process parameters which referred to 3D printer setting, this study aims to investigate effect of essential 3D printer setting parameters involve with mechanical properties of 3D printed anatomical bone part, focused on infill density and layer height, and determine regression model for mechanical strength prediction from selected printing parameters by using experimental design and statistical analysis that based on Design of Experiments (DOE). 2-levelled full factorial experiment was designed, 3 factors including layer height, infill density, and print speed were taken into account. After that, selected 27 Mid-section of femur bone from 3D medical image data were fabricated from filament of Poly-lactic acid (PLA). The models were underwent a three-point bending testing to investigate mechanical properties and statistical analyse to investigate the relationship of parameters.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/635/1/012034