@misc{Schiffler, author = {Schiffler, Andreas}, title = {Schmiervorrichtung f{\"u}r ein Lager (Patent, WO/2014/048594)}, language = {en} } @incollection{vandeWouwvanDijkSchiffleretal., author = {van de Wouw, Nathan and van Dijk, NJM and Schiffler, Andreas and Nijmeijer, Henk and Abele, Eberhard}, title = {Experimental validation of robust chatter control for high-speed milling processes}, series = {Time Delay Systems: Theory, Numerics, Applications, and Experiments}, booktitle = {Time Delay Systems: Theory, Numerics, Applications, and Experiments}, pages = {315 -- 331}, language = {en} } @article{AbeleHanselkaHaaseetal., author = {Abele, Eberhard and Hanselka, Holger and Haase, Frerk and Schlote, Daniel and Schiffler, Andreas}, title = {Development and design of an active work piece holder driven by piezo actuators}, series = {Production Engineering}, volume = {2}, journal = {Production Engineering}, number = {4}, pages = {437 -- 442}, language = {en} } @article{KernEhmannNordmannetal., author = {Kern, S. and Ehmann, C. and Nordmann, R. and Roth, M. and Schiffler, Andreas and Abele, Eberhard}, title = {Active damping of chatter vibrations with an active magnetic bearing in a motor spindle using μ-synthesis and an adaptive filter}, series = {The 8th International Conference on Motion and Vibration Control}, journal = {The 8th International Conference on Motion and Vibration Control}, language = {en} } @article{AbeleDietzSchiffler, author = {Abele, Eberhard and Dietz, S{\"o}ren and Schiffler, Andreas}, title = {Analysis of cutting force during milling with regards to the dependency on the penetration angle}, series = {production engineering}, volume = {3}, journal = {production engineering}, pages = {483 -- 487}, language = {en} } @inproceedings{AbeleSielaffSchiffleretal., author = {Abele, Eberhard and Sielaff, T and Schiffler, Andreas and Rothenb{\"u}cher, Stefan}, title = {Analyzing energy consumption of machine tool spindle units and identification of potential for improvements of efficiency}, series = {Glocalized Solutions for Sustainability in Manufacturing: Proceedings of the 18th CIRP International Conference on Life Cycle Engineering, Technische Universit{\"a}t Braunschweig, Braunschweig, Germany, May 2nd-4th, 2011}, booktitle = {Glocalized Solutions for Sustainability in Manufacturing: Proceedings of the 18th CIRP International Conference on Life Cycle Engineering, Technische Universit{\"a}t Braunschweig, Braunschweig, Germany, May 2nd-4th, 2011}, pages = {280 -- 285}, language = {en} } @article{AbeleSchifflerRothenbuecher, author = {Abele, Eberhard and Schiffler, Andreas and Rothenb{\"u}cher, Stefan}, title = {System identification during milling via active magnetic bearing}, series = {Production Engineering}, volume = {1}, journal = {Production Engineering}, number = {3}, pages = {309 -- 314}, language = {en} } @article{KernSchifflerNordmannetal., author = {Kern, S and Schiffler, Andreas and Nordmann, R and Abele, Eberhard}, title = {Adaptronische hybridgelagerte Motorspindel zur ratterfreien HSC-Bearbeitung}, series = {VDI BERICHTE}, volume = {1971}, journal = {VDI BERICHTE}, pages = {307 -- 307}, language = {en} } @article{AbeleRothenbuecherSchiffler, author = {Abele, Eberhard and Rothenb{\"u}cher, Stefan and Schiffler, Andreas}, title = {Digitally controlled output filters for improvement of temperature behavior of machine tool main spindle drives}, series = {Production Engineering}, volume = {1}, journal = {Production Engineering}, pages = {219 -- 226}, language = {en} } @article{HoefflinSauerSchiffleretal., author = {H{\"o}fflin, Dennis and Sauer, Christian and Schiffler, Andreas and Hartmann, J{\"u}rgen}, title = {Process Monitoring Using Synchronized Path Infrared Thermography in PBF-LB/M}, series = {Sensors}, volume = {22}, journal = {Sensors}, number = {16}, publisher = {MDPI}, doi = {10.3390/s22165943}, pages = {5943}, abstract = {Additive manufacturing processes, particularly Laser-Based Powder Bed Fusion of Metals (PBF-LB/M), enable the development of new application possibilities due to their manufacturing-specific freedom of design. These new fields of application require a high degree of component quality, especially in safety-relevant areas. This is currently ensured primarily via a considerable amount of downstream quality control. Suitable process monitoring systems promise to reduce this effort drastically. This paper introduces a novel monitoring method in order to gain process-specific thermal information during the manufacturing process. The Synchronized Path Infrared Thermography (SPIT) method is based on two synchronized galvanometer scanners allowing high-speed and high-resolution observations of the melt pool in the SWIR range. One scanner is used to steer the laser over the building platform, while the second scanner guides the field of view of an IR camera. With this setup, the melting process is observed at different laser powers, scan speeds and at different locations with respect to the laser position, in order to demonstrate the positioning accuracy of the system and to initially gain thermal process data of the melt pool and the heat-affected zone. Therefore, the SPIT system shows a speed independent overall accuracy of ±2 Pixel within the evaluated range. The system further allows detailed thermal observation of the melt pool and the surrounding heat-affected zone.}, language = {en} } @inproceedings{HartmannOchsLenskietal., author = {Hartmann, J{\"u}rgen and Ochs, Dennis and Lenski, Philipp and Schiffler, Andreas and Versch, Alexander and Manara, Jochen}, title = {Thermal process monitoring for additive manufacturing}, address = {Darmstadt}, language = {en} } @article{OchsWehnertHartmannetal., author = {Ochs, Dennis and Wehnert, Kira-Kristin and Hartmann, J{\"u}rgen and Schiffler, Andreas and Schmitt, Jan}, title = {Sustainable Aspects of a Metal Printing Process Chain with Laser Powder Bed Fusion (LPBF)}, series = {Procedia CIRP}, volume = {98}, journal = {Procedia CIRP}, publisher = {Elsevir}, pages = {613 -- 618}, abstract = {Production companies are getting more and more aware of the relevancy of energy costs and the environmental impact of their manufactured products. Hence, the knowledge about the energy intensity of new process technologies as metal printing becomes increasingly crucial. Therefore, data about the energy intensity of entire process chains allow a detailed assessment of the life cycle costs and environmental impact of metal printed parts. As metal printing with Laser Powder Bed Fusion (LPBF) is applied from rapid prototyping to serial manufacturing processes more and more, sustainability data are useful to support a valid scale-up scenario and energetic improvements of the 3D-printing machinery as well as peripheral aggregates used in the process chain. The contribution aims to increase the transparency of the LPBF process chain in terms of its energy consumption. Therefore a generalized model to assess sustainability aspects of metal printed parts is derived. For this purpose, the LPBF process chain with the essential pre-, main- and post-processes is evaluated regarding its energy intensity. Here, the sub-processes, for example wet and dry cleaning of the printer, sieving of the metal powder or sand-blasting of the part are analyzed as well as the main printing process. Based on the derived experimental data from an installed, industry-like process chain, a model is created, which tends to generalize the experimental findings to evaluate other metal printed parts and process chain variants in terms of their energy intensity.}, language = {en} } @inproceedings{HartmannLenskiOchsetal., author = {Hartmann, J{\"u}rgen and Lenski, Philipp and Ochs, Dennis and Shandy, Amir and Winterstein, A. and Versch, Alexander and Schiffler, Andreas}, title = {Thermische Prozess{\"u}berwachung f{\"u}r additive Fertigungsverfahren}, address = {Berlin}, language = {de} }