@inproceedings{SchkutowGeigerBurgmayretal.2023, author = {Schkutow, Andreas and Geiger, Ren{\´e} and Burgmayr, Wolfgang and Frick, Thomas}, title = {Laser direct joining of metal-polymer hybrid connections using a single beam source and processing station}, series = {Proceedings of LiM 2023}, booktitle = {Proceedings of LiM 2023}, pages = {5}, year = {2023}, abstract = {Laser direct joining of metals and plastics is a promising process for producing strong and reliable joints for lightweight hybrid structures without the need for adhesives, primers or mechanical fasteners. Commonly this process consists of two separate steps using at least two processing stations: the surface of the metal part is textured to achieve an increased surface roughness and improved mechanical interlock between the components. In another step, the thermoplastic components or the matrix of thermoplastic fiber reinforced composites are selectively heated to allow the melt to flow into the prepared metal structures. In this work, a new method is presented that combines highly efficient laser surface texturing of metallic parts and the selective laser heating of the joining zone in a transmission joining process using a single laser beam source running in different operation modes. This enables a very compact and cost-efficient processing station.}, language = {en} } @article{SchkutowGeigerFricketal.2024, author = {Schkutow, Andreas and Geiger, Ren{\´e} and Frick, Thomas and Burgmayr, Wolfgang}, title = {Laser direct joining of metals and polymers using modulated cw laser radiation - one beam source for two processes}, series = {JOINING PLASTICS}, volume = {18}, journal = {JOINING PLASTICS}, number = {1}, publisher = {DVS Media GmbH}, address = {D{\"u}sseldorf}, issn = {1864-3450}, doi = {10.53192/JP20240122}, pages = {22 -- 28}, year = {2024}, abstract = {Laser direct joining of metals with polymers is based on two main processes: The surface structuring of the metallic joining part and the melting of the thermoplastic joining partner at the interface. Up to now, usually two different beam sources are applied for this purpose. Short pulsed laser radiation is typically applied for surface structuring and continuous wave laser radiation for the transmission joining or heat conduction joining process. In a research project conducted by University of Technology Nuremberg in collaboration with Evosys Laser GmbH, a new approach was developed in which both sub-processes are carried out using a single continuous wave (cw) laser beam source. A very efficient structuring process was realized by using the fast power modulation capabilities of the laser.}, language = {de} } @article{GeigerSchkutow2024, author = {Geiger, Ren{\´e} and Schkutow, Andreas}, title = {Mehr Prozesssicherheit beim Laserf{\"u}gen von Kunststoffen}, series = {Laser, Photonics, Professional (LP.PRO)}, volume = {2024}, journal = {Laser, Photonics, Professional (LP.PRO)}, number = {6}, publisher = {Felchner Medien GmbH}, address = {Kaufbeuren}, pages = {22-25}, year = {2024}, abstract = {Hochleistungslaserschweißen temperaturempfindlicher Thermoplaste - was auf den ersten Blick wie ein Widerspruch aussieht, erweist sich in der Praxis als nahezu ideale Kombination. Ein neues Schweißmodul erfasst mittels Hochgeschwindigkeitspyrometer die Bauteiltemperatur in Echtzeit, um ein {\"U}berhitzen der Materialien zu verhindern.}, language = {de} }