The objective of this work is the mechanical characterization of materials produced by 3D printing based on Fused Deposition Modelling (FDM®). The materials chosen are various poly(lactic acid) (PLA) bases reinforced with another material (e. g. glass fiber, metal powder, ….) in different weight fractions. In view of the FDM technique, producing specimens layer by layer and following predefined orientations, the main assumption considered is that the materials behave similarly to laminates formed by orthotropic layers. Great emphasis must be put on the selection of the appropriate quality filaments, therefore first the material properties of the fibers were examined. Following tensile strength tests, scanning electron microscopy (SEM) was employed to observe fracture surfaces. It was clear from the microstructure of the filaments that the morphology of the fibers are material dependent. This difference as well as the diverse types of the fibers explains the variability in material properties among the test materials examined.
The following article presents a special case of metal powder production, ultrasonic metal atomization. In this case, ultrasound technology is based on the capillary wave phenomenon. We verify the suitability of the produced powders for 3D metal printing with various tests. In the case of prints with a metal powder bed fusion (PBF), the properties of the raw material of the powder are extremely important. The main results of the tests carried out in the article (SEM images, EDS composition analysis, sieve analysis) were described.
In case of castings with small wall thickness and high complexity geometry the regular technological calculations are not adequate. Computer simulation is the only tool to achieve the required technology concept on an efficient and economical way. The complexity of the project, the half-automatized pouring technology and the high numbers of factors also confirm the necessity of the application of computer simulation tools. In this paper the tilt casting technology of a faucet casting geometry was designed by control volume simulation method.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.