Geology

Fabrication

Pathology

Nanotechnology

Fused deposition modeling

Characterization (materials science)

Three dimensional printing

3d printed

Deposition (geology)

Operating system

Ultimate tensile strength

Computer graphics (images)

Engineering

Biomedical engineering

Paleontology

Composite material

Raster graphics

Materials science

Engineering drawing

Alternative medicine

Polylactic acid

Sediment

Stiffness

Computer science

Process (computing)

Polymer

3D printing

Medicine

Scientific Reports

Fabrication based on additive manufacturing (AM) process from a three-dimensional (3D) model has received significant attention in the past few years. Although 3D printing was introduced for production of prototypes, it has been currently used for fabrication of end-use products. Therefore, the mechanical behavior and strength of additively manufactured parts has become of significant importance. 3D printing has been affected by different parameters during preparation, printing, and post-printing processes, which have influence on quality and behavior of the additively manufactured components. This paper discusses the effects of two printing parameters on the mechanical behavior of additively manufactured components. In detail, polylactic acid material was used to print test coupons based on fused deposition modeling process. The specimens with five different raster orientations were printed with different printing speeds. Later, a series of tensile tests was performed under static loading conditions. Based on the results, strength and stiffness of the examined specimens have been determined. Moreover, dependency of the strength and elastic modulus of 3D-printed parts on the raster orientation has been documented. In the current study, fractured specimens were visually investigated by a free-angle observation system. The experimental findings can be used for the development of computational models and next design of structural components.

Characterization of 3D-printed PLA parts with different raster orientations and printing speeds