@phdthesis{42809, author = {{Schmidt, Hans Christian}}, title = {{{Ein Beitrag zum stoffschlüssigen Fügen durch plastische Deformation: partielles Kaltpressschweißen durch inkrementelles Walzen}}}, year = {{2019}}, } @phdthesis{42799, author = {{Lossen, Benjamin}}, isbn = {{978-3-8440-6729-3}}, title = {{{Ein Beitrag zur Herstellung von hybriden Bauteilen mittels Reibdrücken}}}, year = {{2019}}, } @inproceedings{21451, author = {{Rostek, Tim and Homberg, Werner}}, booktitle = {{AIP Conference Proceedings 2113, 170018}}, number = {{1}}, publisher = {{AIP Publishing}}, title = {{{Improved set up strategies for steel strip straightening machines}}}, doi = {{10.1063/1.5112734}}, volume = {{2113}}, year = {{2019}}, } @inproceedings{15068, author = {{Wiens, Eugen and Homberg, Werner}}, booktitle = {{PROCEEDINGS OF THE 22ND INTERNATIONAL ESAFORM CONFERENCE ON MATERIAL FORMING: ESAFORM 2019}}, title = {{{Forming analysis of tailored tubes with an internal contoured wall thickness and external axial ribs manufactured by internal flow-turning}}}, doi = {{10.1063/1.5112535}}, year = {{2019}}, } @inproceedings{21457, abstract = {{This paper presents the finite element model developed for the simulation of pipe elbow production by the so-called ‘Hamburg process’ in order to improve productivity and resource efficiency. To optimize the tooling design, a sensitivity analysis of the tool parameters that influence the quality of pipe elbows, such as mandrel height and length, is conducted. Different materials data sets including damage models were considered. Using numerical simulations, it is possible to determine an optimized tool geometry for the production of specific pipe elbow dimensions. Furthermore, as a result of the experiments and numerical simulations conducted, it is possible to increase the production velocity of the serial plant. Along with deformation, damage models are included in simulations in order to identify the right process boundaries. Finally, an experimentally validated model is developed for increasing resource efficiency in pipe elbow fabrication.}}, author = {{Diekmann, Uwe and Homberg, Werner and Prehm, Jens and Rostek, Tim and Schönhoff, Nils and Tabakajew, Dmitri and Trasca, Andreea and Uysal, Haris}}, booktitle = {{Materials Science Forum}}, issn = {{1662-9752}}, pages = {{159--164}}, publisher = {{Trans Tech Publications Ltd}}, title = {{{Optimization of Tooling Design for Hot Mandrel Bending of Pipe Elbows}}}, doi = {{10.4028/www.scientific.net/msf.918.159}}, volume = {{918}}, year = {{2018}}, } @inproceedings{21458, author = {{Rostek, Tim and Homberg, Werner}}, booktitle = {{AIP Conference Proceedings 1960, 100013}}, number = {{1}}, publisher = {{AIP Publishing}}, title = {{{Grading Technologies for the Tanufacture of Innovative Cutting Blades}}}, doi = {{10.1063/1.5034953}}, volume = {{1960}}, year = {{2018}}, } @inproceedings{21465, author = {{Homberg, Werner and Rostek, Tim and Schaper, Mirko and Grydin, Olexandr and Andreiev, Anatolii and Brosius, Alexander and Guilleaume, Christina}}, issn = {{2366-4061}}, pages = {{28--33}}, publisher = {{Universität Paderborn}}, title = {{{Hybride Verbundstrukturen aus Aluminium und Titan für Leichtbauanwendungen}}}, year = {{2018}}, } @techreport{30257, author = {{Wiens, Eugen and Homberg, Werner}}, isbn = {{978-3-946885-25-2}}, title = {{{Herstellung innovativer Stahlhalbzeuge mit wanddicke- und festigkeitsveränderlichen Eigenschaften für den Leichtbau durch Innendrückwalzen (IDW)}}}, volume = {{P 948}}, year = {{2018}}, } @article{15067, author = {{Wiens, Eugen and Homberg, Werner}}, issn = {{2261-236X}}, journal = {{MATEC Web of Conferences}}, location = {{Bremen}}, title = {{{Internal Flow-Turning – extended manufacturing possibilities in tailored tube production}}}, doi = {{10.1051/matecconf/201819011002}}, year = {{2018}}, } @article{23903, author = {{Lossen, Benjamin and Andreiev, Anatolii and Stolbchenko, Mykhailo and Homberg, Werner and Schaper, Mirko}}, issn = {{0924-0136}}, journal = {{Journal of Materials Processing Technology}}, pages = {{242--250}}, title = {{{Friction-spinning—Grain structure modification and the impact on stress/strain behaviour}}}, doi = {{10.1016/j.jmatprotec.2018.06.015}}, year = {{2018}}, } @article{23909, author = {{Lossen, Benjamin and Andreiev, Anatolii and Homberg, Werner and Schaper, Mirko}}, issn = {{1877-7058}}, journal = {{Procedia Engineering}}, pages = {{1749--1754}}, title = {{{Friction-Spinning – Possibility of Grain Structure Adjustment}}}, doi = {{10.1016/j.proeng.2017.10.933}}, year = {{2017}}, } @article{21449, author = {{Rostek, Tim and Homberg, Werner}}, issn = {{1877-7058}}, journal = {{Procedia Engineering}}, location = {{Cambridge}}, pages = {{2185--2190}}, publisher = {{Elsevier Ltd}}, title = {{{Locally Graded Steel Materials for Self-Sharpening Cutting Blades}}}, doi = {{10.1016/j.proeng.2017.10.979}}, volume = {{207}}, year = {{2017}}, } @inproceedings{21452, author = {{Homberg, Werner and Rostek, Tim and Schaper, Mirko and Grydin, Olexandr and Andreiev, Anatolii and Brosius, Alexander and Tulke, Marc}}, number = {{1}}, publisher = {{AIP Publishing}}, title = {{{Development of hybrid directionally reinforced structural parts for lightweight applications}}}, doi = {{10.1063/1.5008055}}, volume = {{1896}}, year = {{2017}}, } @inproceedings{21453, author = {{Rostek, Tim and Homberg, Werner}}, editor = {{Allwood, J.}}, issn = {{1877-7058}}, pages = {{2185--2190}}, publisher = {{Elsevier Ltd}}, title = {{{Locally Graded Steel Materials for Self-Sharpening Cutting Blades}}}, doi = {{10.1016/j.proeng.2017.10.979}}, volume = {{207}}, year = {{2017}}, } @article{30259, author = {{Wiens, Eugen and Homberg, Werner}}, issn = {{1877-7058}}, journal = {{Procedia Engineering}}, keywords = {{Applied Mathematics}}, pages = {{1755--1760}}, publisher = {{Elsevier BV}}, title = {{{Internal Flow-Turning – a new approach for the manufacture of tailored tubes with a constant external diameter}}}, doi = {{10.1016/j.proeng.2017.10.934}}, volume = {{207}}, year = {{2017}}, } @inproceedings{30261, author = {{Wiens, Eugen and Homberg, Werner}}, booktitle = {{Proceedings of the International Conference on Steels in Cars and Trucks SCT 2017}}, location = {{Amsterdam}}, title = {{{Internal flow-turning – efficient manufacture of load-adapted tubes with a constant external diameter}}}, year = {{2017}}, } @article{30260, author = {{Wiens, Eugen}}, journal = {{Bänder Bleche Rohre}}, pages = {{59}}, title = {{{Walzen statt drehen}}}, volume = {{bbr 2}}, year = {{2017}}, } @article{21466, author = {{Rostek, Tim and Homberg, Werner}}, journal = {{International Journal of Material Forming}}, title = {{{Layered Steel Materials for the Manufacture of Self-Sharpening Cutting Blades}}}, year = {{2016}}, } @phdthesis{21464, abstract = {{Die Fertigung von innovativen Bauteilen aus ultrahochfesten Stählen erfordert oft Wärmebehandlungen zur Einstellung höchster mechanischer Festigkeiten. Bei Einsatz dickwandiger Halbzeuge mit entsprechend hoher Wärmekapazität eignen sich konventionelle Wärmebehandlungstechnologien und -prozessführungen jedoch nur eingeschränkt für einen effizienten Herstellungsprozess. Inhalt dieser Arbeit sind daher innovative Fertigungsstrategien, welche die wirtschaftliche Herstellung entsprechender Bauteile vor dem Hintergrund einer effektiven Formgebung sowie einer anforderungsangepassten Werkstoffbehandlung zum Ziel haben. Spezielle Temperaturführungsstrategien als auch thermomechanische Herangehensweisen zum Einstellen besonders günstiger mechanischer Eigenschaften entsprechender Stahlwerkstoffe stellen in diesem Kontext vielversprechende Ansatzpunkte dar.}}, author = {{Rostek, Tim}}, pages = {{221 }}, publisher = {{Shaker Verlag}}, title = {{{Ein Beitrag zur Verarbeitung von Dickblech aus utlrahochfesten Stahlwerkstoffen}}}, year = {{2015}}, } @inproceedings{21467, author = {{Homberg, Werner and Rostek, Tim}}, title = {{{Innovative Processing Techniques for the Manufacture of High-Performance Active Elements from Ultra High-Strength Steel Plate}}}, year = {{2015}}, }