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The industrial demand for complex components made of copper is increasing as they are necessary for electric drives used in the automotive industry as well as for energy transportation systems in the field of regenerative energy sources. Also, modern battery technology uses copper components for interconnection and current transport.

The non-abrasive and chemical-free properties of laser cleaning make it the preferred choice for sensitive copper surfaces. This method not only ensures thorough cleaning but also mitigates damage risks associated with conventional abrasive cleaning techniques.

Laser cleaning effectively removes contaminants and oxides from copper surfaces without damaging the underlying material. This non-contact method utilizes a laser beam to vaporize or ablate unwanted substances, restoring the copper's natural shine and conductive properties. Pulsed fiber lasers, in particular, are well-suited for copper cleaning applications, with adjustable parameters like pulse duration and spot size tailored to specific cleaning needs. 

 

Copper cleaning by laser: How it works:

  • Laser Absorption: The laser beam is directed at the copper surface, and the contaminants absorb the laser energy.

  • Vaporization/Ablation: The absorbed energy causes the contaminants to vaporize or be ejected from the surface.

  • Clean Surface: This process leaves behind a clean copper surface. 

Advantages of laser cleaning for copper:

  • Non-contact:

    Does not require physical contact, minimizing the risk of scratching or damaging the copper.

  • Precision:

    Allows for targeted cleaning, removing contaminants from specific areas.

  • Controllable:

    Parameters like laser power, pulse duration, and spot size can be adjusted for optimal cleaning of different copper surfaces and contaminants.

  • Environmentally Friendly:

    Generally uses minimal or no chemicals, making it an environmentally conscious option. 

Applications:

  • Removing oxides and tarnish: Laser cleaning effectively removes rust, oxidation, and other corrosion products from copper. 

  • Cleaning before welding or bonding: Removes contaminants that can interfere with welding or bonding processes. 

  • Restoring antique copper: Can be used to clean and restore the appearance of antique copper items. 

  • Cleaning copper in various industries: Used in elect