| Popis: |
The additive manufacturing has been proven as an auspicious technology over last one decade, material cost allied with the fabricated part is still present as a barrier for the widespread application of this technology. In this regard, cellular edifices have received substantial attention due to their high strength to weight ratio properties. In this current investigation, the specimen with square cross-section filled with different in-fill or cellular structures like fast honeycomb, wiggle, triangle, and rectilinear structures is designed using CATIA software. The specimen is prepared by using 3D printer. It is named as desktop fabrication. 3D design of a prototype was developed in CAD, this 3D model was stored in as a STL (stereolithography) format and this design was forwarded to a 3D printer. Composites, ABS, and PLA materials are generally used for 3D printing. Specimens are prepared by 3D printer use STL file developed in CAD design layer by layer. In this present work, PLA is used for preparation of the specimens. After the preparation of the specimen, compressive strength of the prepared specimen is determined, by doing a compression test using a UTM (universal testing machine). In the present work, it is observed that the compressive strength of fast honeycomb structure is superior compared to wiggle, triangle, and rectilinear cellular structures for the same quantity of material and in-fill density. |
