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Laser Cleaning

Clean, homogeneous surfaces - this is the basic prerequisite for successful and durable welding and bonding. But before joining, parts are often contaminated, oxidized or equipped with protective layers. This is where lasers come in: non-contact molds remove contamination, oxidation and functional layers within seconds. However, this is only possible, for example, if the functional layer is to be connected or is no longer required. The principle of operation is as follows: Pulses with high peak pulse power vaporize extremely thin layers without affecting the part. Subsequent processes, such as joining, run more uniformly, faster and are completely reproducible. The joining is clean and the effect is longer lasting. In addition, the laser-assisted joining preparation can be seamlessly integrated into industrial series production, as data can be easily transferred via the interface.
In alternatives to laser cleaning (e.g. sandblasting), the surface of the part may be damaged, whereas the laser can work without contact and without residue.
The laser enables the removal of functional layers in a controlled manner and with micron-level precision - easily repeatable.
With laser cleaning, there is no need for additional jets and cleaners that have to undergo complex and expensive treatments. The wear layer will be removed directly by suction.
To clean surfaces by means of lasers, laser marking machines and short-pulse or ultrashort-pulse lasers can be used.
With very high peak pulse powers, the laser vaporizes unwanted layers contactlessly and extremely gently.
In contrast to CO2 lasers, which still leave a thin layer (e.g. 5 µm paint) when cleaning, solid-state lasers can treat surfaces in a more targeted manner. The surface of the workpiece remains thermally virtually unaffected by the laser pulse, thus preventing deformation or material damage and changes.
Worn material can be easily and directly extracted by means of an optional suction system integrated in the respective machine.
Through targeted laser parameterization, the laser can also texturize part surfaces, ensure better adhesion at the bond and adapt to friction and shape for joining, as well as mark parts (e.g., codes for tracking).