laser marking anodized aluminum

Thanks to its excellent properties, anodized aluminum has a wide range of uses, such as medical equipment, 3C electronics, automobile manufacturing, furniture and home appliances, and architectural decoration. In order to further enrich its applications in many fields, material manufacturers often use lasers to mark black anodized aluminum for product identification, anti-counterfeiting, statistics and traceability.

Anode aluminum blackening is actually a kind of laser marking. It uses a high-energy-density laser to irradiate the workpiece to further oxidize the surface oxide with a film thickness of 5um-20um and change the surface material mechanism in a very short period of time.

The nanosecond solid-state laser produced by Nafei Optoelectronics is an excellent laser for blackening of anode aluminum. Its output power is greater than 5W, and its pulse width is less than 15ns@40kHz. The narrower the pulse width, the darker the color, that is, the higher the blackness value; the repetition frequency range is wide, 20-500KHz, which means high processing efficiency at high repetition frequency; after adjusting the blackening speed, time and other process parameters, high-speed blackening The effect is good, the logo is clear, the lines are delicate, the touch is smooth, and the logo is permanent, and will not fade due to environmental changes such as touch, high temperature, acid and alkali, and the processing process can be formed at one time, without other molds and a lot of manpower, reducing costs, Increase work efficiency.

At the same time, this nanosecond solid-state laser is not only used in anodized aluminum materials, but also in aluminum alloy materials such as magnesium and aluminum alloys. Marking, including trademark, logo, model, batch number, origin and other information, has a very good effect and further increases the added value of the product.