Laser marking systems and micro dot-peen marking have a few things in common, but laser marking has many advantages compared to dated micro dot-peen marking. Now, laser marking has replaced the older technology. When it was first launched, some applications could not use it, but now, laser marking can permanently mark or engrave any surface.
One of the primary differences — which is also the most obvious — is the sticker price of these two technologies. Micro dot-peening is economical. However, laser marking has a greater return on investment over the long term. A Fiber laser has an average operating lifetime of 100,000 hours. Additionally, Fiber technology makes lasers much safer to use and practically maintenance-free.
Let’s take a look at the advantages of laser engraving, considering the main features and functions of the two systems.
Dot-peening works by having a fine point hit the surface to be engraved with sufficient force to leave a mark. Dot-peening is limited in font type, size and dot density in order to preserve readability.
Laser marking can be as small as 15 microns. It can use unique designs and create a more precise indelible mark.
Dot-peening has only a few marking options: data matrix codes, letters, or numbers. Other marks are too complex or even impossible, for example, barcode marking.
If you want color options, that is impossible with dot-peening for obvious reasons. However, with modern MOPA lasers, we have made great strides in colored marking on metal.
As we’ve already mentioned, laser marking can mark any type of metal, plastic, or organic material. Many lasers, like UV, CO2, and green lasers, are used to mark delicate and fragile materials, for example glass, ceramics, paper, or cardboard.
This versatility is vital for industries like Advertising. Laser marking is the ideal solution for a variety of gadgets and parts.
Laser marking can be integrated easily on any production line. Its size and shape make it ideal for working in conjunction with a marking station (including mechanical integration in the line) or autonomously in a line (integrated laser).
Low maintenance costs and ease of part replacement are other points in favor of laser marking over dot-peening. The dot-peening tip wears down and needs to be replaced frequently. This is another reason we say that laser marking has a better ROI over the long term, which fully justifies its initial cost.
Here is an interesting article about choosing the best laser marker for your application.
Laser marking systems are precise and provide incredible flexibility in what can be marked, as well as in shapes and colors. The mechanical aspects of dot-peening marking determine the minimum and maximum sizes of the mark.
In addition to moving easily along in an XYZ coordinate system, lasers can cover a large marking area without physically moving, making it much faster. Its spot is so tiny that it guarantees absolute precision for every application, whether it’s logos, graphics, or 2D codes.
Dot-peening tools need to be calibrated frequently. Parts need to be replaced, and a set maintenance schedule is essential (for example, for the stylus tip that constantly impacts the surface).
Laser marking eliminates 90% of maintenance problems, providing greater precision and control. Also, electricity is the only resource it uses, and even the overload is low. Another important aspect is the noise pollution caused by dot-peening systems.
Laser markers are extremely quiet and efficient. The safety class is the only point that requires attention for a laser system, as discussed in this article.
Did you like this article?
Share it on