How does a laser marking machine work?

July 27, 2022

This marking method uses a high-energy-density laser to irradiate a certain part of the workpiece. It evaporates or changes the color of the surface material, leaving a permanent mark.

The marking equipment can accurately mark various letters, symbols and graphics. And the size of the letters can vary from millimeters to micrometers, which is of special significance for product anti-counterfeiting.

The ultra-fine laser beam is focused like a tool. And can remove workpiece surface material point by point. In addition, the marking process is non-contact and does not generate mechanical extrusion or mechanical stress. Therefore, the processed item will not be damaged.

Due to the small size of the laser focus point, the heat affected zone is small, and the machining accuracy is high. Therefore, the laser machine can complete some processes that cannot be completed by conventional technology.

The "tool" used in laser processing is the focused spot. No additional equipment and materials are required. As long as the laser works properly, the laser marking equipment can process materials continuously for a long time.

The laser processing speed is fast and the cost is low. Laser processing adopts computer numerical technology to realize automatic control, and the operation process does not require manual intervention. Adapt to the high efficiency of modern production and meet the needs of fast processing speed.

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Laser engraving is a popular option that provides a permanent and legible marking on an object through etching, ablation, or deep laser engraving. It is similar to laser marking, but the resulting appearance differs due to the depth of laser penetration.
Laser engraving is commonly used to create permanent serial markings on substrates made of: Metal, Wood, Plastic, Leather.
Benefits Of Laser Engraving Over Traditional Processes
Compared to manual engraving:
Minimally Invasive: Laser engraving can be performed at a range of depths without any direct contact at all. Surface marks can even be done on stainless steel with no depth. Overall, lasers are less damaging than manual engraving and keep the substrate material’s physical integrity intact.
Precise: Lasers provide a level of control that’s impossible to achieve manually. Compared to hand-engraving, the process is swift, clean, and highly repeatable, with little room for human error.
Versatile: A single laser engraving machine can be used to create a host of different designs with only minimal calibration. They can also produce exceptionally complex patterns. Affordable: On average, laser devices last longer than other engraving machines and require less maintenance, resulting in savings that can be passed along to the consumer.
Fast: Lasers can be programmed to render virtually any design in a matter of moments. Because the process is automated, it’s easy to scale production runs as needed according to demand.
Long-Lasting: Laser-engraved designs are permanent but can wear over time, depending on the substrate material that’s used. Soft metals, for example, may experience more signs of wear than hardwood. In general, however, laser-engraved designs tend to have a longer lifespan compared to other engraving methods.