Production from PLA Materials Processed Vertically by FDM Method RP Technology

Abstract

The article is focused on the aspects in samples production of sophisticated material – PLA - PolyLacticAcid, PLA plastic. The main part of the work focuses on experimental production and testing of PLA material - PolyLacticAcid plastic, printed on RepRap 3D device that works on the "open source" principle. The article presents the outcomes of test materials in the form of measurement protocols recorded in the software, the measured values ​​in a static tensile test, marked down in tables and shown in work graphs. The article describes selected and carried out tests of mechanical properties of PLA plastics extruded in different directions in this case carried out vertically by FDM rapid prototyping method of two PLA materials such as pure without additives blended with blue dye. The tests are mainly focused on the determination of ultimate tensile strength. Based on the results obtained, the samples made of two PLA materials were compared in the end to establish which produced PLA material sample is stronger. There are outputs in the form of logs, charts and tables that provide information about the executed tests and comparisons, which were made by the authors.

Investigation of the Manufacturing Orientation Impact on the Mechanical Properties of Composite Fiber-Reinforced Polymer Elements in the Fused Filament Fabrication Process

“…It is more flexible than classic PLA but at the cost of less adhesion between layers. If the printing temperature is lower than 225 • C, the resulting surface is glossy, but if the temperature is higher than 225-230 • C, the surface will be matte [21][22][23].…”

Evaluation of Tribological Characteristics of Material Prepared by DMLS Technology

“…Using this manufacturing method, a metal powder with a diameter of 20 µm, without a binder, is completely melted by a high-power laser beam to form a part with the properties of the original material [Mancanares et al 2015, Gaspar et al 2014, Krehel et al 2013. Removal of the polymeric binder prevents the firing and infiltration step and produces a 95% dense steel part compared to a density of 70% selective laser sintering (SLS) [Panda et al 2017, Salokyova 2014, Torok et al 2020. Another advantage of the DMLS process compared to SLS is the higher resolution of details due to the use of thinner layers allowed by a smaller powder diameter.…”