black copper board laser

Laser two-dimensional code traceability application for copper clad laminates, PCB molding boards, copper clad laminates, etc.

Marking is a newly emerging laser marking process. When metal materials such as stainless steel, chromium, and titanium are irradiated with laser pulses, it can produce colorful oxides when providing controllable and accurate heat injection.

Therefore, the copper plate laser marking equipment can use a laser to make a certain area of the metal surface have different colors to obtain a color mark. Studies have found that the key to achieving colorization of metal surfaces is to strictly control the pulse energy and pulse width of the laser.

High-frequency, low-pulse energy lasers are more suitable for this application, and because of their adjustable pulse parameters and good beam quality, fiber lasers are a suitable choice.

By strictly controlling heat injection, fiber lasers can make colorful marks on metal surfaces. When the laser pulse repetition frequency exceeds 125 kHz, the color obtained is deepest, and this repetition frequency cannot be achieved by other lasers.