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Advances in Manufacturing

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13-11-2018

Flexural strength of fused filament fabricated (FFF) PLA parts on an open-source 3D printer

Authors: Shilpesh R. Rajpurohit, Harshit K. Dave

Published in: Advances in Manufacturing | Issue 4/2018

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Abstract

Fused filament fabrication (FFF) has been widely used to develop prototypes as well as functional parts owing to its capability for creating parts with complex geometries in a short time without the specific requirement of tooling. The mechanical properties of parts produced by FFF exhibit 70%–80% of the mechanical properties of parts produced by injection molding. The mechanical properties of FFF-produced parts are primarily dependent on the selection of various process variables. The mechanical properties of the part can be enhanced through the proper selection of process variables. In the present experimental investigation, the effects of the process variables, viz. raster angle, layer height, and raster width on the flexural properties of FFF-printed polylactic acid (PLA) is studied. The result shows that flexural strength is primarily influenced by layer height followed by raster angle. The sample printed with 100-µm layer height and 0° raster angle exhibits a higher tensile strength. Further, the microscopic examination of the deformed specimen is performed to understand the mode of failure. Specimens printed at different raster angles show different modes of failure.

previous article Application of grey relational analysis based on Taguchi method for optimizing machining parameters in hard turning of high chrome cast iron

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Title: Flexural strength of fused filament fabricated (FFF) PLA parts on an open-source 3D printer
Authors: Shilpesh R. Rajpurohit
Harshit K. Dave
Publication date: 13-11-2018
Publisher: Shanghai University
Published in: Advances in Manufacturing / Issue 4/2018
Print ISSN: 2095-3127
Electronic ISSN: 2195-3597
DOI: https://doi.org/10.1007/s40436-018-0237-6

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