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- W4210670896 abstract "Abstract Support-free printing is one of the research hotspots of material extrusion process. During the large extrusion flow printing, if there is no support, when printing bridge or suspended structure, the sagging of material probably cause printing failure due to the large weight of extrusion part and its fusion state. If the support is added, it will be very difficult to remove due to its large adhesion with the matrix. Therefore, large extrusion flow printing process is more willing to print structures without support, the large and complex structures are often difficult to print. In order to realize support-free printing of bridge structure, this paper defines a concept of quantitative fusing segment and analyzes its dynamic balance characteristics during the pellet extrusion printing process. Then the printing speed reduction and air cooling scheme according to the analysis conclusion is put forward, and the experimental verification is carried out. The results show that the sag deformation of bridge structure can be reduced effectively. This will provide some theoretical and experimental support for large-flow support-free printing." @default.
- W4210670896 created "2022-02-08" @default.
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- W4210670896 date "2022-02-03" @default.
- W4210670896 modified "2023-10-18" @default.
- W4210670896 title "Study on Support-free Printing of Large-flow Material Extrusion Process" @default.
- W4210670896 doi "https://doi.org/10.21203/rs.3.rs-1279327/v1" @default.
- W4210670896 hasPublicationYear "2022" @default.
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