Karlovac University of Applied Sciences. The Department of Mechanical Engineering.
Abstract
Aditivna tehnologija svakim danom sve više napreduje, te se pod ovim pojmom podrazumijevaju različiti postupci izrade prototipova i malih serija komada. Svi postupci dijele zajednički proces u kojemu se stvara model sloj po sloj iz računalno izrađenog CAD 3D modela. Postoje mnoge vrste aditivne tehnologije, no u ovom završnom radu su opisani samo najpopularniji postupci s naglaskom na FDM postupak pomoću kojega su izrađene epruvete za ispitivanje. Svi postupci imaju prednosti i nedostatke, koji ovise o kompliciranosti izrade modela, kvaliteti dobivenog vanjskog izgleda, mehaničkim svojstvima i sl. U sklopu ovog završnog rada provedeno je ispitivanje udarnog rada loma na epruvetama izrađenim FDM postupkom. Epruvete su izrađene s točno određenim parametrima te s različitim postotkom ispunjenosti koji se kretao od 20 do 100%. Rezultati mjerenja prikazani su u tablicama, te je napravljena njihova analiza.Aditive technology is progressing every day, and under this concept are involved various prototype and small series production processes. All procedures share a common process in which a layered model is created from a computer generated CAD 3D model. There are many types of additive technology, but in this final assignment only the most popular procedures are described, with an emphasis on the FDM process by which test specimens were made. All processes have advantages and disadvantages, which depend on the complexity of model making, the quality of the exterior appearance, the mechanical properties, and the like. Within this final assignment, an impact test was carried out on the specimens made with the FDM process. The specimens were made with the exact parameters and with different percentages of infill ranging from 20 to 100%. The measurement results are presented in the tables, and their analysis was performed
