Geometrical Accuracy of Holes and Cylinders Manufactured with Fused Deposition Modeling

F. Knoop, V. Schoeppner, in: 28th Annual International Solid Freeform Fabrication Symposium, 2017, pp. 2757–2776.

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Conference Paper | English
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Abstract
A widely used Additive Manufacturing (AM) technology is Fused Deposition Modeling (FDM) to create prototypes and end-use parts with close-to-production thermoplastics. For their use as a final product, it is necessary that additively manufactured parts strictly adhere to the geometrical requirements of the technical drawing. In this paper, the holes and cylinders of the cylindrical elements are investigated in terms of achievable geometrical accuracy. For this purpose, different test specimens that allow a measurement of inner and outer diameters from 3 to 80 mm were designed. All specimens were measured with a coordinate measuring machine (CMM) to evaluate deviations from the nominal dimension and form deviations. The measuring method includes a scanning of the surface to record the course of dimensional deviations over the diameter. Thus, it was possible to visualize how deviations on cylindrical elements manufactured in FDM occur. In order to counteract these deviations and to improve the dimensional accuracy, different shrink factors and filling patterns were investigated. Consequently, an improvement of the dimensional accuracy was achieved.
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Proceedings Title
28th Annual International Solid Freeform Fabrication Symposium
Volume
28
Page
2757-2776
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Knoop F, Schoeppner V. Geometrical Accuracy of Holes and Cylinders Manufactured with Fused Deposition Modeling. In: 28th Annual International Solid Freeform Fabrication Symposium. Vol 28. ; 2017:2757-2776. doi:http://utw10945.utweb.utexas.edu/sites/default/files/2017/Manuscripts/GeometricalAccuracyofHolesandCylindersManufa.pdf
Knoop, F., & Schoeppner, V. (2017). Geometrical Accuracy of Holes and Cylinders Manufactured with Fused Deposition Modeling. In 28th Annual International Solid Freeform Fabrication Symposium (Vol. 28, pp. 2757–2776). http://utw10945.utweb.utexas.edu/sites/default/files/2017/Manuscripts/GeometricalAccuracyofHolesandCylindersManufa.pdf
@inproceedings{Knoop_Schoeppner_2017, title={Geometrical Accuracy of Holes and Cylinders Manufactured with Fused Deposition Modeling}, volume={28}, DOI={http://utw10945.utweb.utexas.edu/sites/default/files/2017/Manuscripts/GeometricalAccuracyofHolesandCylindersManufa.pdf}, booktitle={28th Annual International Solid Freeform Fabrication Symposium}, author={Knoop, F. and Schoeppner, V.}, year={2017}, pages={2757–2776} }
Knoop, F., and V. Schoeppner. “Geometrical Accuracy of Holes and Cylinders Manufactured with Fused Deposition Modeling.” In 28th Annual International Solid Freeform Fabrication Symposium, 28:2757–76, 2017. http://utw10945.utweb.utexas.edu/sites/default/files/2017/Manuscripts/GeometricalAccuracyofHolesandCylindersManufa.pdf.
F. Knoop and V. Schoeppner, “Geometrical Accuracy of Holes and Cylinders Manufactured with Fused Deposition Modeling,” in 28th Annual International Solid Freeform Fabrication Symposium, 2017, vol. 28, pp. 2757–2776.
Knoop, F., and V. Schoeppner. “Geometrical Accuracy of Holes and Cylinders Manufactured with Fused Deposition Modeling.” 28th Annual International Solid Freeform Fabrication Symposium, vol. 28, 2017, pp. 2757–76, doi:http://utw10945.utweb.utexas.edu/sites/default/files/2017/Manuscripts/GeometricalAccuracyofHolesandCylindersManufa.pdf.

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