Analysis of compressive strength of printed PLA sample through FDM.

Additive manufacturing is creating its presence in the current manufacturing sector more rapidly than any other manufacturing process. The technique of generating a three-dimensional object using CAD model data is known as additive manufacturing or 3-D printing. Additive manufacturing is a layer-by-layer material joining method that employs thermoplastic polymers such as Polylactic acid (PLA), acrylonitrile butadiene styrene (ABS) and others.3-D printing uses several methods for the printing purpose such as Selective laser sintering, Fused Deposition Modelling, Stereo Lithography, but the Fused Deposition Modelling is the most prominent ones because of its salient features such as durability, high strength and stability in producing parts. Several studies have been conducted to ascertain the mechanical properties of the 3-D printed parts and various research papers have been also published about 3-D printing. In this study several research papers have been studied to engross the knowledge on the characteristics and properties of PLA samples with the line infill patterns, and at three raster angle, distinct layer thickness and different feed rate. We have printed samples using polylactic acid (PLA) polymer. The raster angle, layer thickness and printing speed varies sample to sample. In this study we have found that the raster angle has the least influence on the sample's mechanical properties. The mechanical properties of the samples are most affected by layer thickness and printing speed and they are the main parameters that influence the properties of the parts the most. This study helps in to determine the compressive strength of the parts and also guides on the selection of the best suitable printing parameters. [ABSTRACT FROM AUTHOR]