Influence of Processing Parameters on the Bonding Neck of Fused Filament Fabrication Products

doi:10.12068/j.issn.1005-3026.2022.09.007

Abstract

Abstract: Fused filament fabrication(FFF)is one of the most widely used additive manufacturing technologies today. The bonding neck formed between the adjacent extruded material filaments of FFF products has an important influence on the forming quality， and it is significantly influenced by the processing parameters. The experimental and theoretical study was carried out on the influencing rule of different processing parameters on the bonding neck. FFF samples built with different processing parameters were designed and prepared according to fractional factorial design. The bonding neck of each sample was then measured by using a scanning electron microscope(SEM)， and a theoretical model of the bonding neck was established. The results showed that the processing parameters have a certain effect on the sample’s bonding neck. If the printing speed is appropriately reduced or the extrusion temperature， extrusion width， layer thickness and filling rate are increased， the bonding neck will be increased， but the improvement effect is limited， which proves that the model is accurate and reliable.

Key words: fused filament fabrication(FFF); bonding neck; processing parameter; scanning electron microscope(SEM); experimental study

CLC Number:

TH114

YUN Chao-qun， JIANG Shi-jie， ZHAN Yang， LI Chang-you. Influence of Processing Parameters on the Bonding Neck of Fused Filament Fabrication Products[J]. Journal of Northeastern University(Natural Science), 2022, 43(9): 1263-1269.

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