Quality optimization of FDM-printed (fused deposition modeling) components based on differential scanning calorimetry

Abstract

Fused deposition modeling has become the most common 3D printing technology in both the industry and the private sector, due to its easy application and low price. Although some companies provide parameter sets that are perfectly adapted for their machines and filaments, a great variety of materials that can be processed on arbitrary printers are also available. Usually, the operator has to figure out ideal printing parameters in order to achieve high-quality results. In this work, an approach is presented relating the conclusions of differential scanning calorimetry, including the melting and glass transition temperatures and the decomposition points, to the printout quality. To give an overview of the common materials and to correlate the behavior of the printing parameters, 16 different filaments categorized into groups of plastics without additives, metals and carbon, woods, and stones have been investigated. Heat towers have been printed with each filament, whereby the individual floors in 5 °C steps represent the nozzle temperatures and show features for direct comparison. As a main result, it is shown that the optimal printing quality is achieved with temperatures on the colder end of the range between melting and decomposition.

Optimization of polylactic acid 3D printing parameters based on support vector regression and cuckoo search

“…In recent years, a large number of scholars have conducted extensive research on the selection of process parameters in the FDM process to improve the workpiece quality through various experimental means. Roj et al 5 presented an approach relating the conclusions of differential scanning calorimetry to the printing quality, and discovered that the optimal printing temperature is within the range between melting and decomposition. Huang et al and Mars ¸avina et al 6,7 researched the effect of the FDM parameters on the polymer mechanical properties for acrylonitrile-butadiene-styrene and polylactic acid (PLA) parts, including printing direction, building orientation, layer thickness, and so on.…”