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* [[RepRap Mechanical Testing Literature Review]]
* [[RepRap Mechanical Testing Literature Review]]
* [[Tensile_test_protocol:_MOST]]
* [[Tensile_test_protocol:_MOST]]
* [[Mechanical properties of 3-D printed truss-like lattice biopolymer non-stochastic structures for sandwich panels with natural fibre composite skins]]
* [[Environmental life cycle analysis of distributed 3-D printing and conventional manufacturing of polymer products]]  
* [[Environmental life cycle analysis of distributed 3-D printing and conventional manufacturing of polymer products]]  
* [[Recyclebot]]
* [[Recyclebot]]
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* [http://st3p3d.com/blogs/3d-printing/14992261-a-few-ways-to-strengthen-3d-printed-parts A few ways to strengthen 3D printed parts] - STEP 3D (really nice summary of methods to strengthen parts)
* [http://st3p3d.com/blogs/3d-printing/14992261-a-few-ways-to-strengthen-3d-printed-parts A few ways to strengthen 3D printed parts] - STEP 3D (really nice summary of methods to strengthen parts)
* [[Chemical Compatibility of Fused Filament Fabrication-based 3-D Printed Components with Solutions Commonly Used in Semiconductor Wet Processing]]
* [[Chemical Compatibility of Fused Filament Fabrication-based 3-D Printed Components with Solutions Commonly Used in Semiconductor Wet Processing]]
* [[Compatibility of 3-D printed devices in cleanroom environments for semiconductor processing]]
* [[Mechanical Properties of Ultraviolet-Assisted Paste Extrusion and Postextrusion Ultraviolet-Curing of Three-Dimensional Printed Biocomposites]]
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* [https://www.sciencedirect.com/science/article/pii/S0142941818306093 FDM process parameters influence over the mechanical properties of polymer specimens: A review ]
* [https://www.sciencedirect.com/science/article/pii/S0142941818306093 FDM process parameters influence over the mechanical properties of polymer specimens: A review ]

Revision as of 10:11, 17 May 2019


Source

TensileStrength.gif

Abstract

It is challenging to 3-D print functional parts with known mechanical properties using variable open source 3-D printers. This study investigates the mechanical properties of 3-D printed parts using a commercial open-source 3-D printer for a wide range of materials. The samples are tested for tensile strength following ASTM D638. The results are presented and conclusions are drawn about the mechanical properties of various fused filament fabrication materials. The study demonstrates that the tensile strength of a 3-D printed specimen depends largely on the mass of the specimen, for all materials. Thus, to solve the challenge of unknown print quality a two step process is proposed, which has a reasonably high expectation that a part will have tensile strengths described in this study for a given material. First, the exterior of the print is inspected visually for sub-optimal layers. Then, to determine if there has been under-extrusion in the interior, the samples are massed. This mass is compared to what the theoretical value is using the densities provided in this study for the material and the volume of the object. This provides a means to assist low-cost open-source 3-D printers expand the range of object production to functional parts.

See Also


Future

  1. Toward improvement of the properties of parts manufactured by FFF (Fused Filament Fabrication) through understanding the influence of temperature and rheological behaviour on the coalescence phenomenon http://aip.scitation.org/doi/pdf/10.1063/1.5008034
  2. ANALYSIS OF EFFECT OF INTERNAL STRUCTURES ON TENSILE STRENGTH OF THE FDM PARTS http://acadpubl.eu/jsi/2017-115-6-7/articles/6/16.pdf
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