Scholarly record
TESTING OF MATERIALS SUITABLE FOR ADDITIVE MANUFACTURING
Abstract
In additive manufacturing field are many technologies and devices which could be included in such area. Basic difference between conventional and additive manufacturing is the way how the surfaces of final part are created. In conventional subtractive manufacturing we have to remove material from block of raw material of semi-product to reach final shape. For additive manufacturing is typical that we adding material, mostly layer by layer to build final shape of model. Most common and available additive manufacturing technology is Fused Deposition Modeling, or simply said deposition of semi-melted thermoplastic layer by layer. Presented paper deal with Fused Deposition Modeling (FDM) technology, the core of which is the manufacture models and components from thermoplastic polymers by deposition single fibers of semi-molted plastic material layer by layer. The article focuses on the results of research for testing of manufactured specimens by FDM technology. As technical plastic are mostly used polymers as ABS, Nylon, PET or others. There are even brand new plastics, based on typical polymers as ABS plastic, but they are filled with additives to improve their mechanical properties and also behavior of material during deposition of after the production process. ABS plastic is predisposed to bend and warp during the process or even after production when the final model is getting cold. These new materials eliminate this character. This research paper deals with mechanical testing of specimens produced from special class of ABS plastic, to bring the knowledge what are the properties of new material compare to conventional ABS material. There is designed full factor experiment, described the testing process and also evaluation of measured values by statistical methods.
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