Wittmann, Alexander

Alexander Wittmann, M. Sc. Institute of Photonic Technologies (LPT, Prof. Schmidt) Room: Room 02.034 Konrad-Zuse-Straße 3/5 91052 Erlangen Phone number: +49 9131 85-64104 Fax number: +49 9131 85-23234 Email: alexander.wittmann@lpt.uni-erlangen.de

 

Research focuses:

• Thulium fiber laser in Additive Manufacturing
• Laser-based Directed Energy Deposition of thermoplastics (e.g. PP, PA12, PEEK) for fabricating functional coatings and structures

Positions and tasks:

• Scientific assistant in the Additive Manufacturing group

 

Publications:

Expand All 2025 Wittmann A., Alidoust Chamandani S., Hentschel O., Sommereyns A., Kopp SP., Schmidt M.: Functional polyetheretherketone coatings fabricated by laser-based directed energy deposition In: Surface & Coatings Technology 496 (2025), p. 131629 ISSN: 0257-8972 DOI: 10.1016/j.surfcoat.2024.131629 BibTeX: Download 2024 Hentschel O., Kohlstruck J., Vetter J., Wittmann A., Krakhmalev P., Nikas D., Schmidt M.: Experimental Investigations in the Processing of AISI H11 Powder Blends Enriched with Tungsten Carbide Nanoparticles for the Additive Manufacturing of Tailored Hot Working Tools in the Directed Energy Deposition (DED-LB/M)—Impact of Tungsten Carbide Nanoparticles on Microstructural and Mechanical Characteristics In: Metals 14 (2024), Article No.: 188 ISSN: 2075-4701 DOI: 10.3390/met14020188 BibTeX: Download Wittmann A., Meth C., Alidoust Chamandani S., Vetter J., Kopp SP., Schmidt M.: Additive manufacturing of polyamide 12 bulk structures using directed energy deposition with a thulium laser: Effect of process conditions on morphology and mechanical performance In: Journal of Laser Applications 36 (2024) ISSN: 1042-346X DOI: 10.2351/7.0001586 BibTeX: Download 2023 Wittmann A.: Additive Manufacturing of Thermoplastic Structures by Directed Energy Deposition With a Thulium-Doped Fiber Laser Laser Congress 2023 (ASSL, LAC) (Tacoma, October 8, 2023 - October 12, 2023) In: Technical Digest Series (Optica Publishing Group, 2023) 2023 BibTeX: Download Wittmann A., Bader T., Alidoust Chamandani S., Hentschel O., Schmidt M., Gold G.: Feasibility of Manufacturing Dielectric Image Lines by Using Laser-Based Directed Energy Deposition of Polymers In: IEEE Access (2023) ISSN: 2169-3536 DOI: 10.1109/ACCESS.2023.3325197 URL: https://ieeexplore.ieee.org/document/10286514/keywords#keywords BibTeX: Download 2022 Campbell J., Rothfelder R., Wittmann A., Schmidt M., Volodkin D., Vikulina A.: Biopolymer-based microgels as the carriers for surface functionalization 16th European Symposium on Controlled Drug Delivery (Egmond aan Zee, April 12, 2022 - April 15, 2022) BibTeX: Download Wittmann A., Hentschel O., Sommereyns A., Schmidt M.: Generation of Polyamide 12 Coatings on Stainless Steel Substrates by Directed Energy Deposition with a Thulium-Doped Fiber Laser (DED-LB/P) In: Polymers 14 (2022), p. 3729 ISSN: 2073-4360 DOI: 10.3390/polym14183729 BibTeX: Download Wittmann A., Kroha L., Huber F., Schmidt M.: Laser-based coating process of PEEK powder on stainless steel substrates by using a thulium-doped fiber laser In: Procedia CIRP 113 (2022), p. 588-593 ISSN: 2212-8271 DOI: 10.1016/j.procir.2022.09.179 BibTeX: Download 2021 Wittmann A., Heberle J., Huber F., Schmidt M.: Consolidation of thermoplastic coatings by means of a thulium-doped fiber laser In: Journal of Laser Applications 33 (2021), Article No.: 042032 ISSN: 1042-346X DOI: 10.2351/7.0000501 BibTeX: Download Wittmann A., Hentschel O., Ermer J., Sommereyns A., Huber F., Schmidt M.: Laser-based coating process of PA12 on stainless steel substrates Lasers in Manufacturing (LiM) 2021 (München, June 21, 2021 - June 24, 2021) BibTeX: Download 2020 Ermer J., Saffer J., Schaumberger K., Kaufmann F., Wittmann A., Roth S., Schmidt M.: Qualification of a system technology for selective laser-based quasi-simultaneous soldering with an integrated pyrometric process control In: Procedia CIRP 94 (2020), p. 622-626 ISSN: 2212-8271 DOI: 10.1016/j.procir.2020.09.093 BibTeX: Download Saffer J., Dörres T., Schaumberger K., Ermer J., Kaufmann F., Wittmann A., Roth S., Schmidt M.: Laser beam welding of heat-resistant mixed joints using laser-based pre- and post-heating In: Procedia CIRP 94 (2020), p. 671-675 ISSN: 2212-8271 DOI: 10.1016/j.procir.2020.09.105 BibTeX: Download