Common Issues with Fiber Laser Marking Machines on Plastic Materials

Fiber laser marking machines utilize fiber laser technology for marking applications. These machines offer an exceptionally long service life, require no maintenance, have no consumables, deliver high stability, achieve high production efficiency, feature broad applicability, and boast low operating costs. Increasingly, diverse industries are adopting and utilizing fiber laser marking machines. So just how extensive is the application range of fiber laser marking machines?

The primary materials suitable for fiber laser marking are metals and certain non-metals. Its principle involves vaporizing the surface layer of an object to form markings. Most metal materials can be marked using fiber laser marking machines, though the results vary in quality. For instance, aluminum and copper present challenges: marking on aluminum typically yields only white, indistinct markings, requiring specific techniques to achieve clear results. For copper, achieving any marking at all is considered satisfactory. Regarding plastics, hard plastics like ABS are relatively easy to mark. Among the many types of plastic materials, those with harder textures and darker colors generally yield better results when marked with fiber laser marking machines.

So, can fiber laser marking machines mark plastics? The answer is yes, but with conditions. Some plastics can be marked, while others cannot. Can different colors be marked on plastic? Generally, the color produced by fiber laser marking machines reflects the material's inherent hue. However, with stainless steel, parameter adjustments can yield various colors. For plastics, only grayish-black marks are typically achievable—only the shade's depth can be adjusted, not other colors.

Will fiber laser marking machines burn plastic during marking?

Fiber laser marking machines do not burn plastic during marking. Their output power is generally low. With proper parameter adjustment, the laser only vaporizes a thin layer of the plastic surface without damaging the material itself. Therefore, this concern is unnecessary. In contrast, laser cutting machines often cause melting or yellowing when cutting plastic in industrial applications—though that's a separate topic.

Can laser markings on plastic be erased?

Generally not. Laser markings are typically permanent and cannot be removed without scraping off the surface layer. This makes laser marking machines highly effective for printing production dates and anti-counterfeiting labels.

For more information about laser marking machines, laser welding machines, and laser cutting machines, please visit the official website of Wuxi TOL Laser Technology Co., Ltd.: http://www.tollaser.com