Laserline at Euroblech 2024: Diode lasers for joining, hardening and coating

Diode laser specialist Laserline will be presenting its wide range of high-power diode lasers and processing optics for customized joining, hardening and coating applications at Euroblech 2024 (22 to 25 October in Hanover, Hall 26, Stand J52). The trade fair highlights include multi-spot optics for application-optimized beam shaping. They enable beam splitting to generate several individual spots as well as the spot-specific adjustment of geometry and intensity distribution. They are used, for example, for the smooth and fast brazing of hot-dip galvanized sheet metal or for the spatter-free creation of symmetrical or asymmetrical seams with an adapted penetration profile. In addition, optics for aluminum welding with hot wire (Hot Wire Aluminum Welding) will be presented. The process offers significantly greater process stability than conventional aluminum joining processes and scores points with reduced heat input into the base material as well as high process speed with high seam qualities.

Another focus of the trade fair presentation is the laser curing of powder coatings using ultra-wide spot irradiation technology, which represents an economically and ecologically convincing alternative to gas-powered oven processes. Laser irradiation only heats the exact area that is actually to be coated, without creating any particle turbulence. As the laser systems require no preheating time and the laser power can be adjusted within milliseconds while the process is running, a 90 percent increase in the heating rate and a significantly higher overall energy efficiency can be achieved. Laserline will also be showcasing energy- and material-efficient coating solutions in Hanover, including for brake disks in road vehicles. The laser coating ensures long-term corrosion and wear protection and thus reduces the amount of particulate matter induced by the braking process, which is harmful to the environment and health, by up to 90 percent - making a decisive contribution to more sustainable mobility. The trade fair presentation will be rounded off with selected exhibits from individual application areas, including an underride guard for a car and samples for welding tailored blanks.