Langebeck, AnikaAnikaLangebeckBohlen, AnnikaAnnikaBohlenSeefeld, ThomasRadel, TimMattulat, Thorsten2022-11-212022-11-212022-11978-3-933762-70-2https://media.suub.uni-bremen.de/handle/elib/631510.26092/elib/1877Laser melt injection (LMI) is used to improve abrasive wear resistance by building a metal matrix composite (MMC) layer in highly loaded tool surfaces. But LMI for highly conductive and highly reflective materials like copper can be very challenging. Nowadays high-power laser beam sources with visible wavelengths are available enabling LMI in these materials. This paper shows a suitable process window for LMI with 515 nm wavelength laser in pure copper with spherical fused tungsten carbide as reinforcing phase. High-quality MMC can be manufactured by using laser power intensities in the range of 104 W/cm² and conduction heating of the matrix mate-rial between 300 °C and 400 °C. The microstructure exhibits only a few imperfections and has a high particle content of 44 %.enCC BY 4.0 (Attribution)https://creativecommons.org/licenses/by/4.0/laser melt injectionmetal matrix compositetungsten carbideCu-ETPvisible wavelength laser620Artikel/Aufsatzurn:nbn:de:gbv:46-elib63150