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Scopus Author ID: 57202303602

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Employment (1)

Fraunhofer-Gesellschaft: Aachen, DE

2019-02-01 to present | Head of Department (Fine Machining and Optics)
Employment
Source: Self-asserted source
Tim Grunwald

Professional activities (1)

RWTH Aachen University: Aachen, Nordrhein-Westfalen, DE

2019-10-01 to present | Lecturer (Chair of Manufacturing Technology)
Invited position
Source: Self-asserted source
Tim Grunwald

Works (23)

Surface Grinding of Borosilicate Crown Glass Optics via a Robotic Approach Based on Superposed Trajectories

2023 | Book chapter
DOI: 10.1007/978-3-031-15928-2_31
Contributors: Eugenio Tamassia; Fabio Pini; Tim Grunwald; Thomas Bergs; Francesco Leali
Source: check_circle
Crossref

Investigation of Surface Integrity Induced by Ultra-Precision Grinding and Scratching of Glassy Carbon

Micromachines
2023-12-14 | Journal article
DOI: 10.3390/mi14122240
Contributors: Kirk Jahnel; Robert Michels; Dennis Patrick Wilhelm; Tim Grunwald; Thomas Bergs
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

Studies on Protective Coatings for Molding Tools Applied in a Precision Glass Molding Process for a High Abbe Number Glass S-FPM3

Coatings
2023-08-16 | Journal article
DOI: 10.3390/coatings13081438
Contributors: Chong Chen; Marcel Friedrichs; Cheng Jiang; Li-Ang Wang; Ming-Yang Dang; Tim Grunwald; Thomas Bergs; Yong-Liang Li
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

An Analytical Model for Robot-Based Grinding of Axisymmetric Mold Inserts Using a Rotary Unit

2022 | Book chapter
DOI: 10.1007/978-3-030-91234-5_60
Contributors: Eugenio Tamassia; Sebastian Hähnel; Fabio Pini; Tim Grunwald; Thomas Bergs; Francesco Leali
Source: check_circle
Crossref

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

Materials
2022-09-29 | Journal article
DOI: 10.3390/ma15196756
Contributors: Cheng Jiang; Carlos Marin Tovar; Jan-Helge Staasmeyer; Marcel Friedrichs; Tim Grunwald; Thomas Bergs
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

Reprint of: Application cases of biological transformation in manufacturing technology

CIRP Journal of Manufacturing Science and Technology
2021-07 | Journal article
DOI: 10.1016/j.cirpj.2021.06.008
Contributors: T. Bergs; U. Schwaneberg; S. Barth; L. Hermann; T. Grunwald; S. Mayer; F. Biermann; N. Sözer
Source: check_circle
Crossref

Hard rolling of bearing rings to increase service life,Neuartige prozesskette zur lebensdauersteigerung von hybridlagern hartwalzen von lagerringen zur lebensdauersteigerung

WT Werkstattstechnik
2020 | Journal article
EID:

2-s2.0-85097983155

Part of ISSN: 14364980
Contributors: Jahnel, K.; Hähnel, S.; Grunwald, T.; Bergs, T.
Source: Self-asserted source
Tim Grunwald via Scopus - Elsevier

Modeling of thermo-viscoelastic material behavior of glass over a wide temperature range in glass compression molding

Journal of the American Ceramic Society
2020 | Journal article
DOI: 10.1111/jace.16963
EID:

2-s2.0-85077291656

Part of ISSN: 15512916 00027820
Contributors: Vu, A.T.; Vu, A.N.; Grunwald, T.; Bergs, T.
Source: Self-asserted source
Tim Grunwald via Scopus - Elsevier

Numerical and experimental determinations of contact heat transfer coefficients in nonisothermal glass molding

Journal of the American Ceramic Society
2020 | Journal article
DOI: 10.1111/jace.16756
EID:

2-s2.0-85071867656

Part of ISSN: 15512916 00027820
Contributors: Vu, A.T.; Helmig, T.; Vu, A.N.; Frekers, Y.; Grunwald, T.; Kneer, R.; Bergs, T.
Source: Self-asserted source
Tim Grunwald via Scopus - Elsevier

Precision glass molding of infrared optics with anti-reflective microstructures

Proceedings of SPIE - The International Society for Optical Engineering
2020 | Conference paper
DOI: 10.1117/12.2570519
EID:

2-s2.0-85092494533

Part of ISSN: 1996756X 0277786X
Contributors: Rojacher, C.; Vu, A.T.; Grunwald, T.; Bergs, T.
Source: Self-asserted source
Tim Grunwald via Scopus - Elsevier

PtIr protective coating system for precision glass molding tools: Design, evaluation and mechanism of degradation

Surface and Coatings Technology
2020 | Journal article
DOI: 10.1016/j.surfcoat.2020.125378
EID:

2-s2.0-85078509110

Part of ISSN: 02578972
Contributors: Friedrichs, M.; Peng, Z.; Grunwald, T.; Rohwerder, M.; Gault, B.; Bergs, T.
Source: Self-asserted source
Tim Grunwald via Scopus - Elsevier

Thermo-viscoelastic modeling of nonequilibrium material behavior of glass in nonisothermal glass molding

Procedia Manufacturing
2020 | Conference paper
DOI: 10.1016/j.promfg.2020.04.350
EID:

2-s2.0-85085503155

Part of ISSN: 23519789
Contributors: Vu, A.T.; Grunwald, T.; Bergs, T.
Source: Self-asserted source
Tim Grunwald via Scopus - Elsevier

Vibration-Assisted Face Grinding of Mould Steel

Lecture Notes in Mechanical Engineering
2020 | Book
DOI: 10.1007/978-3-030-31154-4_25
EID:

2-s2.0-85081618811

Part of ISSN: 21954364 21954356
Contributors: Hähnel, S.; Grunwald, T.; Bergs, T.; Pini, F.; Leali, F.
Source: Self-asserted source
Tim Grunwald via Scopus - Elsevier

Application cases of biological transformation in manufacturing technology

CIRP Journal of Manufacturing Science and Technology
2020-11 | Journal article
DOI: 10.1016/j.cirpj.2020.09.010
Contributors: T. Bergs; U. Schwaneberg; S. Barth; L. Hermann; T. Grunwald; S. Mayer; F. Biermann; N. Sözer
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

Approaches and methodologies for process development of thin glass forming

Proceedings of SPIE - The International Society for Optical Engineering
2019 | Conference paper
DOI: 10.1117/12.2536431
EID:

2-s2.0-85077274857

Part of ISSN: 1996756X 0277786X
Contributors: Vogel, P.-A.; Vu, A.-T.; Mende, H.; Grunwald, T.; Bergs, T.; Schmitt, R.H.
Source: Self-asserted source
Tim Grunwald via Scopus - Elsevier

Evaluation of mold materials for precision glass molding

Proceedings of SPIE - The International Society for Optical Engineering
2019 | Conference paper
DOI: 10.1117/12.2526769
EID:

2-s2.0-85070112206

Part of ISSN: 1996756X 0277786X
Contributors: Friedrichs, M.; Grunwald, T.; Bergs, T.
Source: Self-asserted source
Tim Grunwald via Scopus - Elsevier

Experimental investigation of contact heat transfer coefficients in nonisothermal glass molding by infrared thermography

Journal of the American Ceramic Society
2019 | Journal article
DOI: 10.1111/jace.16029
EID:

2-s2.0-85053386630

Part of ISSN: 15512916 00027820
Contributors: Vu, A.T.; Vu, A.N.; Liu, G.; Grunwald, T.; Dambon, O.; Klocke, F.; Bergs, T.
Source: Self-asserted source
Tim Grunwald via Scopus - Elsevier

Influence of Glassy Carbon surface finishing on its wear behavior during precision glass moulding of Fused Silica

Materials
2019 | Journal article
DOI: 10.3390/ma12050692
EID:

2-s2.0-85062953301

Part of ISSN: 19961944
Contributors: Grunwald, T.; Wilhelm, D.P.; Dambon, O.; Bergs, T.
Source: Self-asserted source
Tim Grunwald via Scopus - Elsevier

Molded anti-reflective structures of chalcogenide glasses for infrared optics by precision glass molding

Proceedings of SPIE - The International Society for Optical Engineering
2019 | Conference paper
DOI: 10.1117/12.2536548
EID:

2-s2.0-85077279642

Part of ISSN: 1996756X 0277786X
Contributors: Vu, A.T.; Rojacher, C.; Grunwald, T.; Bergs, T.
Source: Self-asserted source
Tim Grunwald via Scopus - Elsevier

Replicative manufacturing of glass optics with functional microstructures

Proceedings of SPIE - The International Society for Optical Engineering
2019 | Conference paper
DOI: 10.1117/12.2526733
EID:

2-s2.0-85070100545

Part of ISSN: 1996756X 0277786X
Contributors: Rojacher, C.; Grunwald, T.; Bergs, T.
Source: Self-asserted source
Tim Grunwald via Scopus - Elsevier

Vibration-assisted face grinding - Vibration-assisted grinding of cast iron to reduce kinematically induced grinding traces,Schwingungsunterstütztes Stirnschleifen - Schwingungsunterstütztes Schleifen von Gusseisen zur Reduktion kinematisch bedingter Schleifspuren

WT Werkstattstechnik
2019 | Journal article
EID:

2-s2.0-85078628524

Part of ISSN: 14364980
Contributors: Hähnel, S.; Hoff, S.; Grunwald, T.; Bergs, T.
Source: Self-asserted source
Tim Grunwald via Scopus - Elsevier

Analysis of form deviation in non-isothermal glass molding

Proceedings of SPIE - The International Society for Optical Engineering
2018 | Conference paper
DOI: 10.1117/12.2289591
EID:

2-s2.0-85047838694

Part of ISSN: 1996756X 0277786X
Contributors: Kreilkamp, H.; Grunwald, T.; Dambon, O.; Klocke, F.
Source: Self-asserted source
Tim Grunwald via Scopus - Elsevier

Scalability of the precision glass molding process for an efficient optics production

Proceedings of SPIE - The International Society for Optical Engineering
2018 | Conference paper
DOI: 10.1117/12.2321103
EID:

2-s2.0-85056475371

Part of ISSN: 1996756X 0277786X
Contributors: Liu, G.; Staasmeyer, J.-H.; Grunwald, T.; Dambon, O.
Source: Self-asserted source
Tim Grunwald via Scopus - Elsevier
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