@misc{SizovaSviridovBambachetal., author = {Sizova, Irina and Sviridov, Alexander and Bambach, Markus and Eisentraut, Mark and Hemes, Susanne and Hecht, Ulrike and Marquardt, Axel and Leyens, Christoph}, title = {A study on hot-working as alternative post-processing method for titanium aluminides built by laser powder bed fusion and electron beam melting}, series = {Journal of Materials Processing Technology}, volume = {291}, journal = {Journal of Materials Processing Technology}, issn = {0924-0136}, doi = {10.1016/j.jmatprotec.2020.117024}, pages = {14}, language = {en} } @misc{BambachImranSizovaetal., author = {Bambach, Markus and Imran, Muhammad and Sizova, Irina and Buhl, Johannes and Gerster, Stephan and Herty, Michael}, title = {A soft sensor for property control in multi-stage hot forming based on a level set formulation of grain size evolution and machine learning}, series = {Advances in Industrial and Manufacturing Engineering}, journal = {Advances in Industrial and Manufacturing Engineering}, number = {2}, issn = {2666-9129}, doi = {10.1016/j.aime.2021.100041}, pages = {13}, language = {en} } @misc{HemesKochHamaSalehetal., author = {Hemes, Susanne and Koch, Waldemar and Hama-Saleh, Rebar and Sizova, Irina and Meiners, Frank and Mathes, Michael and Bambach, Markus and Weisheit, Andreas and Schleifenbaum, Johannes Henrich}, title = {Microstructural and Mechanical Analysis of High-Performance Parts Produced by Hybrid Additive Manufacturing of Powder LMD on Forged Base Components}, series = {Advanced Materials Research}, volume = {Vol. 1161}, journal = {Advanced Materials Research}, issn = {1662-8985}, doi = {10.4028/www.scientific.net/AMR.1161.85}, pages = {85 -- 93}, language = {en} } @misc{BambachSizovaKiesetal., author = {Bambach, Markus and Sizova, Irina and Kies, Fabian and Haase, Christian}, title = {Directed energy deposition of Inconel 718 powder, cold and hot wire using a six-beam direct diode laser set-up}, series = {Additive Manufacturing}, volume = {Vol. 47}, journal = {Additive Manufacturing}, issn = {2214-8604}, doi = {10.1016/j.addma.2021.102269}, pages = {12}, language = {en} } @incollection{SviridovSizovaBambach, author = {Sviridov, Alexander and Sizova, Irina and Bambach, Markus}, title = {Fast Development of New Alloys for Metal Forming Using Additive Manufacturing}, series = {Forming the Future : Proceedings of the 13th International Conference on the Technology of Plasticity}, booktitle = {Forming the Future : Proceedings of the 13th International Conference on the Technology of Plasticity}, editor = {Daehn, Glenn}, publisher = {Springer}, address = {Cham}, isbn = {978-3-030-75380-1}, issn = {2367-1181}, doi = {10.1007/978-3-030-75381-8_158}, pages = {1893 -- 1902}, language = {en} } @misc{IsrarBuhlBambach, author = {Israr, Rameez and Buhl, Johannes and Bambach, Markus}, title = {A study on power-controlled wire-arc additive manufacturing using a data-driven surrogate model}, series = {The International Journal of Advanced Manufacturing Technology}, volume = {177}, journal = {The International Journal of Advanced Manufacturing Technology}, number = {7-8}, issn = {1433-3015}, doi = {10.1007/s00170-021-07358-y}, pages = {2133 -- 2147}, abstract = {Wire-arc additive manufacturing (WAAM) provides an alternative for the production of various metal products needed in medium to large batch sizes due to its high deposition rates. However, the cyclic heat input in WAAM may cause local overheating. To avoid adverse effects on the performance of the part, interlayer dwelling and active cooling are used, but these measures increase the process time. Alternatively, the temperature during the WAAM process could be controlled by optimizing the welding power. The present work aims at introducing and implementing a novel temperature management approach by adjusting the weld-bead cross-section along with the welding power to reduce the heat accumulation in the WAAM process. The temperature evolution during welding of weld beads of different cross-sections is investigated and a database of the relation between optimal welding power for beads of various sizes and different pre-heating temperatures was established. The numerical results are validated experimentally with a block-shaped geometry. The results show that by the proposed method, the test shape made was welded with lower energy consumption and process time as compared to conventional constant-power WAAM. The proposed approach efficiently manages the thermal input and reduces the need for pausing the process. Hence, the defects related to heat accumulation might be reduced, and the process efficiency increased.}, language = {en} } @misc{NguyenBuhlIsraretal., author = {Nguyen, Lam and Buhl, Johannes and Israr, Rameez and Bambach, Markus}, title = {Analysis and compensation of shrinkage and distortion in wire-arc additive manufacturing of thin-walled curved hollow sections}, series = {Additive Manufacturing}, volume = {Vol. 47}, journal = {Additive Manufacturing}, issn = {2214-8604}, doi = {10.1016/j.addma.2021.102365}, language = {en} } @misc{BuhlKloeppelMertenetal., author = {Buhl, Johannes and Kl{\"o}ppel, Thomas and Merten, Mathias and Haufe, Andre and Israr, Rameez and Bambach, Markus}, title = {Numerical prediction of process-dependent properties of high-performance Ti6Al4 in LS-DYNA}, series = {ESAFORM 2021 : 24th International Conference on Material Forming}, journal = {ESAFORM 2021 : 24th International Conference on Material Forming}, doi = {doi: 10.25518/esaform21.1496}, language = {en} } @misc{SzczepańskiBambachJenschetal., author = {Szczepański, Łukasz and Bambach, Markus and Jensch, Felix and Ambroziak, Andrzej and Kurzynowski, Tomasz}, title = {Structural investigations of Fe-Zr-Si-Cu metallic glass with low glass-forming ability produced in laser powder bed fusion technology}, series = {Materials \& Design}, volume = {Vol. 210}, journal = {Materials \& Design}, issn = {0264-1275}, doi = {https://doi.org/10.1016/j.matdes.2021.110112}, pages = {7}, language = {en} } @misc{DeillonJenschPalmetal., author = {Deillon, L{\´e}a and Jensch, Felix and Palm, Frank and Bambach, Markus}, title = {A new high strength Al-Mg-Sc alloy for laser powder bed fusion with calcium addition to effectively prevent magnesium evaporation}, series = {Journal of materials processing technology}, volume = {Vol. 300}, journal = {Journal of materials processing technology}, issn = {1873-4774}, doi = {10.1016/j.jmatprotec.2021.117416}, pages = {10}, language = {en} } @misc{PetrikSydowBambach, author = {Petrik, Jan and Sydow, Benjamin and Bambach, Markus}, title = {Beyond parabolic weld bead models: AI-based 3D reconstruction of weld beads under transient conditions in wire-arc additive manufacturing}, series = {Journal of Materials Processing Technology}, volume = {302 (2022)}, journal = {Journal of Materials Processing Technology}, doi = {10.1016/j.jmatprotec.2021.117457}, pages = {16}, language = {en} } @misc{MaqboolMaassBuhletal., author = {Maqbool, Fawad and Maaß, Fabian and Buhl, Johannes and Hahn, Marlon and Hajavifard, Ramin and Walther, Frank and Tekkaya, A. Erman and Bambach, Markus}, title = {Targeted residual stress generation in single and two point incremental sheet forming (ISF)}, series = {Archive of Applied Mechanics}, volume = {91}, journal = {Archive of Applied Mechanics}, number = {8}, issn = {1432-0681}, doi = {10.1007/s00419-021-01935-z}, pages = {3465 -- 3487}, language = {en} } @misc{AfzalHajavifardBuhletal., author = {Afzal, Muhammad Junaid and Hajavifard, Ramin and Buhl, Johannes and Walther, Frank and Bambach, Markus}, title = {Influence of process parameters on the residual stress state and properties in disc springs made by incremental sheet forming (ISF)}, series = {Forschung im Ingenieurwesen}, volume = {85}, journal = {Forschung im Ingenieurwesen}, number = {3}, issn = {1434-0860}, doi = {10.1007/s10010-021-00491-w}, pages = {783 -- 793}, language = {en} } @misc{BambachHertyImran, author = {Bambach, Markus and Herty, Michael and Imran, Muhammad}, title = {Feedback stabilization of forming processes}, series = {arXiv}, journal = {arXiv}, 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} } @misc{BesongBuhlBambach, author = {Besong, Lemopi Isidore and Buhl, Johannes and Bambach, Markus}, title = {Increasing formability in hole-flanging through the use of punch rotation based on temperature and strain rate dependent forming limit curves}, series = {International Journal of Material Forming}, volume = {15}, journal = {International Journal of Material Forming}, number = {3}, issn = {1960-6214}, doi = {10.1007/s12289-022-01684-6}, pages = {1 -- 21}, language = {en} } @misc{BambachGersterHertyetal., author = {Bambach, Markus and Gerster, Stephan and Herty, Michael and Imran, Muhammad}, title = {Feedback control for random, linear hyperbolic balance laws}, series = {International Journal for Uncertainty Quantification}, volume = {12}, journal = {International Journal for Uncertainty Quantification}, number = {2}, issn = {2152-5099}, doi = {10.1615/Int.J.UncertaintyQuantification.2021037183}, pages = {81 -- 104}, language = {en} } @misc{IsrarBuhlHaerteletal., author = {Israr, Rameez and Buhl, Johannes and H{\"a}rtel, Sebastian and Bambach, Markus}, title = {Reinforcement of Tooling Using Residual Stresses Generated by Cladding by Arc Welding}, series = {Metals}, volume = {12}, journal = {Metals}, number = {6}, issn = {2075-4701}, doi = {10.3390/met12060984}, pages = {30}, abstract = {Cladding is typically used to protect components from wear and corrosion while also improving the aesthetic value and reliability of the substrate. The cladding process induces significant residual stresses due to the temperature difference between the substrate and the clad layer. However, these residual stresses could be effectively utilized by modifying processes and geometrical parameters. This paper introduces a novel methodology for using the weld-cladding process as a cost-effective alternative to various existing reinforcement techniques. The numerical analyses are performed to maximize the reinforcement of a cylindrical tool. The investigation of how the weld cladding develops compressive stresses on the specimen in response to a change in the weld beads and the welding sequence is presented. For the benchmark shape, experimental verification of the numerical model is performed. The influence of the distance between the weld beads and the effect of the tool diameter is numerically investigated. Furthermore, the variation in compressive stresses due to temperature fluctuations during the extrusion process has been evaluated. The results showed that adequate compressive stresses are generated on the welded parts through the cladding process after cooling. More compressive stresses are induced in the tool as the cross-section of the weld bead is increased. Furthermore, keeping a gap between the adjacent beads improves tool reinforcement. Hence, the targeted reinforcement of the substrate can be achieved by optimizing the welding sequence and process parameters.}, language = {en} } @misc{EmdadiBolzBuhletal., author = {Emdadi, Aliakbar and Bolz, Sebastian and Buhl, Johannes and Weiß, Sabine and Bambach, Markus}, title = {Laser Powder Bed Fusion Additive Manufacturing of Fe3Al-1.5Ta Iron Aluminide with Strengthening Laves Phase}, series = {Metals}, volume = {12}, journal = {Metals}, number = {6}, issn = {2075-4701}, doi = {10.3390/met12060997}, language = {en} } @misc{HartRawungBuhlHaerteletal., author = {Hart-Rawung, Thawin and Buhl, Johannes and H{\"a}rtel, Sebastian and Bambach, Markus}, title = {Intelligent Iterative Experimental Design to Achieve Maximum Model Quality for Phase Change of 22MnB5}, series = {Key Engineering Materials}, volume = {926}, journal = {Key Engineering Materials}, publisher = {Verlag Trans Tech Publications Ltd}, doi = {https://doi.org/10.4028/p-0cnty5}, pages = {2031 -- 2039}, language = {en} } @misc{BesongBuhlHaerteletal., author = {Besong, Lemopi Isidore and Buhl, Johannes and H{\"a}rtel, Sebastian and Bambach, Markus}, title = {Increasing the Forming Limits in Hole Flanging of Dual-Phase (DP) 1000 Steel Using Punch Rotation}, series = {Key Engineering Materials}, volume = {Vol. 926}, journal = {Key Engineering Materials}, issn = {1662-9795}, doi = {10.4028/p-06y8un}, pages = {717 -- 723}, language = {en} }