Laser cutting and laser engraving: processing differences

Understanding the difference betweenlaser engraving and cutting techniques can be complex. In fact, although both technologies use lasers to work the material, the execution takes place in a very different way.

In this article we clarify the differences and advantages of laser cutting and engraving.

How laser engraving works

During laser engraving, the material is heated by the beam, which changes the surface of the piece in colour, creating a chromatic contrast. The colour difference may vary depending on the time of exposure to the laser.

There are two types of incision: raster or vector.

The type depends on the digital drawing and how it is developed.

The raster engraving follows the lines of the drawing, which are composed of pixels. 

On the contrary, the vector one (also called "scoring"), follows graphic traces composed of vectors.

The advantages of laser engraving are first and foremost in the simplicity of the process, in its speed and quality of processing. In addition, this technique allows you to process a wide range of materials at limited costs, both in the case of single pieces and in series.

Laser marking, a technique different from engraving

Marking is often confused with laser engraving. However, the two techniques lead to two different results.

Laser marking is a process that allows you to print and customize a material with precision. Unlike engraving that vaporizes or dissolves the material, marking imprints a mark or symbol on the material, as in the case of codes directly marked on the piece.

How Laser Cutting Works

Laser cutting is a thermal processing process, in which the light is adjusted with a higher power in order to evaporate or melt the area subjected to the beam.

In fact, in the case of laser cutting, it is important to know how to set the parameters of the machine depending on the material on which you want to work.

The thickness, hardness and flexibility of the material are among the most important characteristics to take into account, as they will affect the criteria of power and speed of the laser beam.

This technique guarantees precision and quality in the cutting edges and does not require subsequent processing to refine the material, thus reducing production times.

Conclusions

In general, the laser techniques we have talked about offer five great advantages:

• processing versatility 
• possibility of working on different materials
• high quality and precision in processing
• reduced production times
• reduced costs.

It is also important to consider that engraving, marking and laser cutting can be used on the same piece and coexist in the processing without changing the structure of the material.

Therefore, it is possible to customise the material in a precise and replicable way without excluding other processes such as direct printing or others.

If you are thinking of turning to the online laser engraving or cutting service and need advice, please contact us. We are here to help.