Contact

Dr.-Ing. Tim Grunwald

© projektelf

Tim Grunwald studied mechanical engineering in the bachelor's program and switched to the automation technology program in the subsequent master's program, which he completed in 2016 with a master's thesis on "Process development of a hot forming process for the production of three-dimensional glass-silicon composites" at RWTH Aachen University.

In May 2016, Tim Grunwald started as a research assistant at the Fraunhofer IPT, working on forming processes for glass and quartz glass for microelectronic applications. One year later, he took over as head of the "Optics" group. Since February 2019, he is head of the department "Fine Machining and Optics”.

Tim Grunwald wrote his dissertation on the topic of " Modeling of Tool Wear during Fused Silica Molding". In May 2021, he received his doctorate in engineering.

In addition to his management and research activities at the Fraunhofer IPT, Tim Grunwald holds the lectureships for the courses "High Precision Glass Optics Manufacturing" and "Ultra Precision Technology I" at RWTH Aachen University.

Publications

Jahr
Year
Titel/Autor:in
Title/Author
Publikationstyp
Publication Type
2023 Precision glass molding process enhancing the expanding of chip-on-tip endoscopes
Jiang, Cheng; Friedrichs, Marcel; Grunwald, Tim; Bergs, Thomas
Paper
2023 Precision glass molding process enhancing the expanding of chip on tip endoscopes
Jiang, Cheng; Friedrichs, Marcel; Grunwald, Tim; Bergs, Thomas
Vortrag
Presentation
2023 Surface Grinding of Borosilicate Crown Glass Optics via a Robotic Approach Based on Superposed Trajectories
Tamassia, Eugenio; Pini, Fabio; Grunwald, Tim; Bergs, Thomas; Leali, Francesco
Konferenzbeitrag
Conference Paper
2022 Efficient Fiber-Photonic Integrated Circuit Connection via Wafer-Scale Glass Molding
Michels, Robert; Grunwald, Tim; Bergs, Thomas
Poster
2022 Mold protective coatings for precision glass molding
Friedrichs, Marcel; Grunwald, Tim; Bergs, Thomas
Konferenzbeitrag
Conference Paper
2022 Simulation of the Refractive Index Variation and Validation of the Form Deviation in Precisely Molded Chalcogenide Glass Lenses (IRG 26) Considering the Stress and Structure Relaxation
Jiang, Cheng; Marin Tovar, Carlos; Staasmeyer, Jan-Helge; Friedrichs, Marcel; Grunwald, Tim; Bergs, Thomas
Zeitschriftenaufsatz
Journal Article
2022 Enabling Sustainability in Glass Optics Manufacturing by Wafer Scale Molding
Strobl, Christian; Vogel, Paul-Alexander; Vu, Anh Tuan; Mende, Hendrik; Grunwald, Tim; Schmitt, Robert H.; Bergs, Thomas
Zeitschriftenaufsatz
Journal Article
2022 Modeling nonequilibrium thermoviscoelastic material behaviors of glass in nonisothermal glass molding
Vu, Anh Tuan; Avila Hernandez, Rocio; Grunwald, Tim; Bergs, Thomas
Zeitschriftenaufsatz
Journal Article
2022 Bio-inspired manufacturing of molded optics and optical systems
Grunwald, Tim; Bergs, Thomas
Konferenzbeitrag
Conference Paper
2022 An Analytical Model for Robot-Based Grinding of Axisymmetric Mold Inserts Using a Rotary Unit
Tamassia, Eugenio; Hähnel, Sebastian; Pini, Fabio; Grunwald, Tim; Bergs, Thomas; Leali, Francesco
Konferenzbeitrag
Conference Paper
2021 Modellierung des Werkzeugverschleißes bei der Quarzglasumformung
Grunwald, Tim
Dissertation
Doctoral Thesis
2021 Machine learning-based predictive modeling of contact heat transfer
Vu, Anh Tuan; Gulati, Shrey; Vogel, Paul-Alexander; Grunwald, Tim; Bergs, Thomas
Zeitschriftenaufsatz
Journal Article
2020 Vibration-Assisted Face Grinding of Mould Steel
Hähnel, Sebastian; Grunwald, Tim; Bergs, Thomas; Pini, Fabio; Leali, Francesco
Konferenzbeitrag
Conference Paper
2020 Precision Glass Molding of infrared optics with anti-reflective microstructures
Rojacher, Cornelia; Vu, Anh Tuan; Grunwald, Tim; Bergs, Thomas
Konferenzbeitrag
Conference Paper
2020 Thermo-viscoelastic modeling of nonequilibrium material behavior of glass in nonisothermal glass molding
Vu, Anh Tuan; Grunwald, Tim; Bergs, Thomas
Zeitschriftenaufsatz
Journal Article
2020 Numerical and experimental determinations of contact heat transfer coefficients in nonisothermal glass molding
Vu, Anh Tuan; Helmig, Thorsten; Vu, Anh Ngoc; Frekers, Yona; Grunwald, Tim; Kneer, Reinhold; Bergs, Thomas
Zeitschriftenaufsatz
Journal Article
2020 PtIr protective coating system for precision glass molding tools
Friedrichs, Marcel; Peng, Zirong; Grunwald, Tim; Rohwerder, Michael; Gault, Baptiste; Bergs, Thomas
Zeitschriftenaufsatz
Journal Article
2020 Hartwalzen von Lagerringen zur Lebensdauersteigerung
Jahnel, Kirk; Hähnel, Sebastian; Grunwald, Tim; Bergs, Thomas
Zeitschriftenaufsatz
Journal Article
2020 Modeling of thermo-viscoelastic material behavior of glass over a wide temperature range in glass compression molding
Vu, Anh Tuan; Vu, Anh Ngoc; Grunwald, Tim; Bergs, Thomas
Zeitschriftenaufsatz
Journal Article
2019 Schwingungsunterstütztes Stirnschleifen. Schwingungsunterstütztes Schleifen von Gusseisen zur Reduktion kinematisch bedingter Schleifspuren
Hähnel, Sebastian; Hoff, Sascha; Grunwald, Tim; Bergs, Thomas
Zeitschriftenaufsatz
Journal Article
2019 Evaluation of mold materials for precision glass molding
Friedrichs, Marcel; Grunwald, Tim; Bergs, Thomas
Konferenzbeitrag
Conference Paper
2019 Experimental investigation of contact heat transfer coefficients in nonisothermal glass molding by infrared thermography
Vu, Anh Tuan; Vu, Anh Ngoc; Liu, Gang; Grunwald, Tim; Dambon, Olaf; Klocke, Fritz; Bergs, Thomas
Zeitschriftenaufsatz
Journal Article
2019 Approaches and Methodologies for Process Development of Thin Glass Forming
Vogel, Paul-Alexander; Vu, Anh Tuan; Mende, Hendrik; Grunwald, Tim; Bergs, Thomas; Schmitt, Robert Heinrich
Konferenzbeitrag
Conference Paper
2019 Influence of Glassy Carbon Surface Finishing on its Wear Behavior during Precision Glass Moulding of Fused Silica
Grunwald, Tim; Wilhelm, Dennis Patrick; Dambon, Olaf; Bergs, Thomas
Zeitschriftenaufsatz
Journal Article
2019 Molded anti-reflective structures of chalcogenide glasses for infrared optics by precision glass molding
Vu, Anh Tuan; Rojacher, Cornelia; Grunwald, Tim; Bergs, Thomas
Konferenzbeitrag
Conference Paper
2019 Replicative manufacturing of glass optics with functional microstructures
Rojacher, Cornelia; Grunwald, Tim; Bergs, Thomas
Konferenzbeitrag
Conference Paper
2018 Analysis of form deviation in non-isothermal glass molding
Kreilkamp, Holger; Grunwald, Tim; Dambon, Olaf; Klocke, Fritz
Konferenzbeitrag
Conference Paper
2018 Scalability of the precision glass molding process for an efficient optics production
Liu, Gang; Staasmeyer, Jan-Helge; Grunwald, Tim; Dambon, Olaf
Konferenzbeitrag
Conference Paper
2016 Warmumformung von Präzisionsoptiken
Grunwald, Tim; Dambon, Olaf; Klocke, Fritz
Aufsatz in Buch
Book Article
Diese Liste ist ein Auszug aus der Publikationsplattform Fraunhofer-Publica

This list has been generated from the publication platform Fraunhofer-Publica