@misc{ImranAfzalBuhletal., author = {Imran, Muhammad and Afzal, Muhammad Junaid and Buhl, Johannes and Bambach, Markus and Dunlap, Anthony and Schwedt, Alexander and Aretz, Anke and Wang, Shuhan and Lohmar, Johannes and Hirt, Gerhard}, title = {Evaluation of process-induced damage based on dynamic recrystallization during hot caliber rolling}, series = {Production Engineering}, volume = {14}, journal = {Production Engineering}, number = {1}, issn = {1863-7353}, doi = {10.1007/s11740-019-00932-0}, pages = {5 -- 16}, language = {en} } @misc{BambachFuegenschuhBuhletal., author = {Bambach, Markus and F{\"u}genschuh, Armin and Buhl, Johannes and Jensch, Felix and Schmidt, Johannes}, title = {Mathematical Modeling and Optimization for Powder-Based Additive Manufacturing}, series = {Procedia Manufacturing; Part of Special issue: 23rd International Conference on Material Forming}, volume = {47}, journal = {Procedia Manufacturing; Part of Special issue: 23rd International Conference on Material Forming}, editor = {Bambach, Markus}, issn = {2351-9789}, doi = {10.1016/j.promfg.2020.04.158}, pages = {1159 -- 1163}, language = {en} } @misc{BaehrBuhlRadowetal., author = {B{\"a}hr, Martin and Buhl, Johannes and Radow, Georg and Schmidt, Johannes and Bambach, Markus and Breuß, Michael and F{\"u}genschuh, Armin}, title = {Stable honeycomb structures and temperature based trajectory optimization for wire-arc additive manufacturing}, series = {Optimization and Engineering}, volume = {22}, journal = {Optimization and Engineering}, number = {2}, issn = {1573-2924}, doi = {10.1007/s11081-020-09552-5}, pages = {913 -- 974}, abstract = {We consider two mathematical problems that are connected and occur in the layer-wise production process of a workpiece using wire-arc additive manufacturing. As the first task, we consider the automatic construction of a honeycomb structure, given the boundary of a shape of interest. In doing this, we employ Lloyd's algorithm in two different realizations. For computing the incorporated Voronoi tesselation we consider the use of a Delaunay triangulation or alternatively, the eikonal equation. We compare and modify these approaches with the aim of combining their respective advantages. Then in the second task, to find an optimal tool path guaranteeing minimal production time and high quality of the workpiece, a mixed-integer linear programming problem is derived. The model takes thermal conduction and radiation during the process into account and aims to minimize temperature gradients inside the material. Its solvability for standard mixed-integer solvers is demonstrated on several test-instances. The results are compared with manufactured workpieces.}, language = {en} } @book{BaehrBuhlRadowetal., author = {B{\"a}hr, Martin and Buhl, Johannes and Radow, Georg and Schmidt, Johannes and Bambach, Markus and Breuß, Michael and F{\"u}genschuh, Armin}, title = {Stable honeycomb structures and temperature based trajectory optimization for wire-arc additive manufacturing}, address = {Cottbus}, doi = {10.26127/btuopen-5079}, pages = {49}, language = {en} } @book{SchmidtBuhlFuegenschuh, author = {Schmidt, Johannes and Buhl, Johannes and F{\"u}genschuh, Armin}, title = {A finite element approach for trajectory optimization in Wire-Arc Additive Manufacturing}, address = {Cottbus}, doi = {10.26127/BTUOpen-5575}, pages = {12}, language = {en} } @techreport{BeisegelBuhlIzaretal., author = {Beisegel, Jesse and Buhl, Johannes and Izar, Rameez and Schmidt, Johannes and Bambach, Markus and F{\"u}genschuh, Armin}, title = {Mixed-integer programming for additive manufacturing}, editor = {F{\"u}genschuh, Armin}, address = {Cottbus}, doi = {10.26127/BTUOpen-5731}, pages = {28}, language = {en} } @incollection{BeisegelBuhlIsraretal., author = {Beisegel, Jesse and Buhl, Johannes and Israr, Rameez and Schmidt, Johannes and Bambach, Martin and F{\"u}genschuh, Armin}, title = {Mixed-Integer Programming Models for Two Metal Additive Manufacturing Methods}, series = {Mathematical Methods for Objects Reconstruction}, booktitle = {Mathematical Methods for Objects Reconstruction}, editor = {Cristiani, Emiliano and Falcone, Maurizio and Tozza, Silvia}, publisher = {Springer}, address = {Heidelberg}, isbn = {978-981-9907-75-5}, pages = {121 -- 155}, language = {en} } @inproceedings{BambachImranBuhletal., author = {Bambach, Markus and Imran, Muhammad and Buhl, Johannes and H{\"a}rtel, Sebastian and Awiszus, Birgit}, title = {Towards intelligent materials testing with reduced experimental effort for hot forming}, series = {KomPlasTech 2017 : XXIV International Conference on Computer Methods in Materials Technology, January 15-18, 2017, Zakopane, Poland : book of abstracts}, booktitle = {KomPlasTech 2017 : XXIV International Conference on Computer Methods in Materials Technology, January 15-18, 2017, Zakopane, Poland : book of abstracts}, editor = {Szeliga, Danuta and Rauch, Łukasz}, publisher = {AKNET-PRess}, address = {Krakow}, isbn = {978-83-947091-0-5}, pages = {72 -- 73}, language = {en} } @misc{BambachBuhlHartRawungetal., author = {Bambach, Markus and Buhl, Johannes and Hart-Rawung, Thawin and Lechner, Michael and Merklein, Marion}, title = {Towards virtual deformation dilatometry for the design of hot stamping process}, series = {Procedia Engineering}, volume = {207}, journal = {Procedia Engineering}, issn = {1877-7058}, doi = {10.1016/j.proeng.2017.10.945}, pages = {1821 -- 1826}, language = {en} } @misc{ConteBuhlAmbrogioetal., author = {Conte, Romina and Buhl, Johannes and Ambrogio, Giuseppina and Bambach, Markus}, title = {Joining of aluminum sheet and glass fiber reinforced polymer using extruded pins}, series = {Proceedings of the 21st International ESAFORM Conference on Material Forming, ESAFORM 2018, Palermo, Italy, 23-25 April 2018}, journal = {Proceedings of the 21st International ESAFORM Conference on Material Forming, ESAFORM 2018, Palermo, Italy, 23-25 April 2018}, editor = {Fratini, Livan and Di Lorenzo, Rosa and Buffa, Gianluca and Ingarao, Guiseppe}, publisher = {AIP Publishing}, address = {Melville, New York}, isbn = {978-0-7354-1663-5}, doi = {10.1063/1.5034881}, language = {en} } @misc{NguyenBuhlBambach, author = {Nguyen, Lam and Buhl, Johannes and Bambach, Markus}, title = {Decomposition algorithm for tool path planning for wire-arc additive manufacturing}, series = {Journal of Machine Engineering}, volume = {18}, journal = {Journal of Machine Engineering}, number = {1}, issn = {1895-7595}, doi = {10.5604/01.3001.0010.8827}, pages = {96 -- 107}, language = {en} } @misc{HartRawungBuhlBambach, author = {Hart-Rawung, Thawin and Buhl, Johannes and Bambach, Markus}, title = {Extension of a phase transformation model for partial hardening in hot stamping}, series = {Journal of Machine Engineering}, volume = {18}, journal = {Journal of Machine Engineering}, number = {3}, issn = {1895-7595}, doi = {10.5604/01.3001.0012.4619}, pages = {87 -- 97}, language = {en} }