The blog about laser plastic welding
The blog about laser plastic welding
Today’s mobility and powertrain concepts are in a state of disruption, especially in the automotive industry. Solutions are needed that meet the general trends towards reduced CO2 and pollutant emissions, higher traffic density and increasing digitalization. The focus is on developments for electric mobility, autonomous driving and efficient combustion engines.…
As an alternative to conventional laser welding, laser welding of plastics with wavelengths in the range of 2µm can be used. With this variant, two workpieces can be joined without additional absorbers. The main difference of the process lies in the way the energy is introduced into the plastics to…
Laser transmission welding of plastics is dependent on a laser-transparent and laser-absorbing joining partner, which are connected in an overlap weld. Usually, the necessary optical properties are adjusted by additives. In the simplest case, carbon black is added to the absorbing component, while the transparent part remains unfilled. What works…
In simultaneous welding, the entire weld seam is heated and melted at the same time (i.e. simultaneously) by one or more beam sources. The arrangement of the beam sources or the beam shaping by means of suitable optical elements must be carried out in such a way that the line…
In so-called quasi-simultaneous welding, the weld seam is repeatedly scanned at high speed with a focused laser beam. The feed rates are usually above 300mm/s up to several meters per second. All areas of the weld seam are heated and melted almost simultaneously (i.e. quasi-simultaneously). Due to the simultaneous melting…
