@article{27237,
  author       = {{Schöppner, Volker and Westhues, H.}},
  issn         = {{0023-5563}},
  journal      = {{Zeitschrift Kunststofftechnik / Journal of Plastics Technology}},
  number       = {{13. Jg. Heft 3}},
  pages        = {{196--211}},
  title        = {{{Phänomenorientierte Untersuchung der Feststoffförderzonen gleichläufiger Doppelschneckenextruder mithilfe der DEM-Simulation}}},
  year         = {{2017}},
}

@inproceedings{27238,
  author       = {{Schöppner, Volker and Fiebig, I.}},
  booktitle    = {{25. Fachtagung Technomer}},
  location     = {{Chemnitz (Deutschland)}},
  title        = {{{Potentiale zur Erhöhung der Schweißnahtfestigkeit faserverstärkter Thermoplaste}}},
  year         = {{2017}},
}

@inproceedings{27240,
  author       = {{Schöppner, Volker and Westhues, K.}},
  booktitle    = {{12. Würzburger Compoundiertage}},
  location     = {{Würzburg (Deutschland)}},
  title        = {{{Simulation von Doppelschneckenextrudern - Einblicke in das Gemeinschaftsforschungsprojekt SIGMA}}},
  year         = {{2017}},
}

@inproceedings{27241,
  author       = {{Schöppner, Volker and Lakemeyer, P.}},
  booktitle    = {{70th Annual Assembly of the International Institute of Welding (IIW)}},
  location     = {{Shanghai (China)}},
  title        = {{{Simulation-Based Investigations of the Temperature Influence during Laser Transmission Welding of Thermoplastics}}},
  year         = {{2017}},
}

@inproceedings{27242,
  author       = {{Schöppner, Volker and Lakemeyer, P. and Reinders, F.}},
  booktitle    = {{75th Annual Technical Conference of the Society of Plastics Engineers (ANTEC)}},
  location     = {{Anaheim (USA)}},
  title        = {{{Simulation-Based Investigations of the Temperature Influence during Laser Transmission Welding of Thermoplastics}}},
  year         = {{2017}},
}

@article{27243,
  author       = {{Moritzer, Elmar and Hirsch, André and Günther, K. and Sonntag, F. and Klotzbach, U. and Lasagni, A.}},
  issn         = {{2072-666X}},
  journal      = {{Micromachines}},
  number       = {{8. Jg. Heft 8}},
  pages        = {{246}},
  title        = {{{Universal Micromachining Platform and Basic Technologies for the Manufacture and Marking of Microphysiological Systems}}},
  year         = {{2017}},
}

@article{27244,
  author       = {{Moritzer, Elmar and Wortmann, M. and Frese, N. and Heide, A. and Strube, O. and Gölzhausne, A. and Hüsgen, B.}},
  journal      = {{Ingenieurspiegel - Fachmagazin für Ingenieure}},
  number       = {{5. Jg. Heft 3}},
  pages        = {{52--54}},
  title        = {{{Untersuchung der Alterungsmechanismen von Silikon-Gießwerkzeugen beim Vakuumgießen}}},
  year         = {{2017}},
}

@phdthesis{27663,
  author       = {{Hendriks , Sven}},
  title        = {{{Experimentelle Untersuchungen zur Schaumextrusion mit Treibmittelgemischen und Analyse der Wirkzusammhänge mit dimensionslosen Kennzahlen}}},
  year         = {{2017}},
}

@phdthesis{27664,
  author       = {{Tahir, Muhammad}},
  title        = {{{Development of Novel Blends based on Rubber and in-situ Synthesized Polyurethane-urea}}},
  year         = {{2017}},
}

@phdthesis{27665,
  author       = {{Mörl, Michaela}},
  title        = {{{Steigerung der Zähigkeit von isotaktischem Polypropylen durch Kontrolle der Morphologie mittels 1,3,5-Benzoltrisamiden}}},
  year         = {{2017}},
}

@phdthesis{27666,
  author       = {{Budde , Christopher}},
  title        = {{{Evaluierung neuer Fügetechnik für Organoblech-Hybridverbindungen }}},
  year         = {{2017}},
}

@phdthesis{27667,
  author       = {{Goebel , Linda}},
  title        = {{{Beitrag zur Eigenschaftsverbesserung von Polyhydroxybutyrat (PHB)}}},
  year         = {{2017}},
}

@phdthesis{27668,
  author       = {{Abliz , Dilmurat}},
  title        = {{{Functionalyzation of fiber composites with Nanoperticle-Modified resin systems }}},
  year         = {{2017}},
}

@phdthesis{27669,
  author       = {{Böhm, Nils}},
  title        = {{{Beiträge zur Compoundierung von Wood-Plastic-Composites (WPC) }}},
  year         = {{2017}},
}

@phdthesis{27670,
  author       = {{Brockhaus, Sebastian}},
  title        = {{{Theoretische und experimentelle Untersuchungen zum Temperatur- und Durchsatzverhalten von Kautschukextrudern}}},
  year         = {{2017}},
}

@phdthesis{27671,
  author       = {{Jacobkersting, Bianca}},
  title        = {{{Weiterentwicklung Netzwerktheorie basierender Werkzeugauslegung }}},
  year         = {{2017}},
}

@inproceedings{22422,
  author       = {{Knoop, Frederick and Lieneke, Tobias}},
  booktitle    = {{Inside 3D Printing 2017}},
  title        = {{{Dimensional Tolerances for Additive Manufacturing: Fused Deposition Modeling}}},
  year         = {{2017}},
}

@inproceedings{22040,
  abstract     = {{Fused Deposition Modeling (FDM) is used for prototypes, single-partproduction and small batch productions of thermoplastic components. This manufacturing technique has the huge benefit that no forming tool is needed. The knowledge about dimensional deviations which occur in the FDM process is necessary for calculating fits and for determining tolerances. A major challenge is the reproducibility of the dimensional accuracy of FDM parts and the reproducibility between different FDM machines. There are many influential factors on the dimensional accuracy in the FDM process for example geometric, material-specific or process-specific factors, which are considered in this paper. The influence of the part position on the build platform of a Stratasys Fortus 400mc is analyzed in terms of the achievable dimensional accuracy. For this purpose, the temperature distribution in the actively heated build chamber is investigated and possible correlations to the dimensional accuracy are identified. The reproducibility of one machine is examined by a multiple production of the test specimens. In addition, a comparison with three other FDM machines from Stratasys is made. Afterwards, the long-term reproducibility of the dimensional accuracy is verified to consider how environmental influences such as maintenance or modification of machine components affect the dimensional accuracy of the FDM process.}},
  author       = {{Knoop, F. and Lieneke, Tobias and Schöppner, Volker}},
  booktitle    = {{Rapid Tech - International Trade Show & Conference for Additive Manufacturing}},
  pages        = {{52--66}},
  title        = {{{Reproduzierbarkeit der Maßhaltigkeit im Fused Deposition Modeling}}},
  doi          = {{10.3139/9783446454606.004}},
  year         = {{2017}},
}

@inproceedings{22042,
  abstract     = {{Compared to conventional polymer processing technologies the material selection in the Fused Deposition Modelling (FDM) process is restricted. To expand the range of materials the requirements for the material properties and the semi-finished products (filaments) must be clarified. For this, a machine- and process-independent rating of the processability is necessary. The established standards for the tensile strength test apply to specimens with nearly isotropic mechanical properties. The FDM process generates anisotropic parts. The properties are mainly influenced by the machine quality and the data processing. It is not possible to test a material for FDM independently of the machine and the data processing. In this paper, machine and process specific influences are investigated. Considering these influences, a custom-built specimen is created to test the tensile strength of the welding seams for polyamide 6. This procedure allows a machine- and process-independent rating of the processability in terms of tensile strength for different materials.}},
  author       = {{Schumacher, C. and Schöppner, Volker and Guntermann, J.}},
  booktitle    = {{28th Annual International Solid Freeform Fabrication Symposium}},
  pages        = {{470--484}},
  title        = {{{Considering machine- and process-specific influences to create custom-built specimens for the Fused Deposition Modeling process}}},
  doi          = {{http://utw10945.utweb.utexas.edu/sites/default/files/2017/Manuscripts/ConsideringMachineandProcessSpecificInfluenc.pdf}},
  volume       = {{28}},
  year         = {{2017}},
}

@inproceedings{22045,
  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.}},
  author       = {{Knoop, F. and Schöppner, Volker}},
  booktitle    = {{28th Annual International Solid Freeform Fabrication Symposium}},
  pages        = {{2757--2776}},
  title        = {{{Geometrical Accuracy of Holes and Cylinders Manufactured with Fused Deposition Modeling}}},
  doi          = {{http://utw10945.utweb.utexas.edu/sites/default/files/2017/Manuscripts/GeometricalAccuracyofHolesandCylindersManufa.pdf}},
  volume       = {{28}},
  year         = {{2017}},
}