In industry, it is more and more common to see QR codes engraved on metal for different parts, especially because of their unlimited capacity to store information in a reduced space.
These codes, normally engraved with a laser marker, have a wide range of possible applications, from improving traceability for companies with their products and components to providing access to information of interest with one simple click.
Given how important this has become recently, the engraving process needs to be applied by experts precisely and meticulously to ensure clear legibility and the greatest durability possible for the QR code.
Techniques to engrave a QR code on metal
Currently, there are different metal engraving techniques that provide different advantages and applications:
Laser engraving on metal
The most noteworthy option, thanks to its precision and versatility. Laser engraving can be adjusted with high precision, providing the necessary contrasts and a result that is resistant to rust, high temperature, and other adversities.
Engraving on metal with micro-punching
This uses tiny, light blows to draw the QR code on the metal. It is less effective than laser engraving, but provides a fairly long-lasting result.
Electrochemical engraving
It applies electric current to engrave the design, creating a fairly clean and precise mark. This is especially useful for conductive metals and when you do not wish to apply excessive thermal stress to the part.
Stamping the QR code on metal
The least common for engraving QR codes, due to lack of precision and detail, but it can be used for specific applications when very deep and long-lasting marks are required.
How to engrave a QR code on metal with laser
As we have seen, engraving QR codes on metal with a laser is the most suitable technique for the process.
Even so, we must remember a series of considerations and measures to ensure perfect engraving for the code. The process would be as follows:
- Designing and Generating the QR Code: We use specialised software to create the desired QR code design, which must be clear to guarantee that it is legible later.
- Selecting and preparing the Material: The metal you wish to use should be suitable for laser engraving, with a clean surface that is free from all contaminants.
- Laser Configuration: It is essential to properly adjust the power, speed, and frequency of the laser to obtain the best quality possible in the engraving. These settings vary, depending on the type of metal and desired finish.
- Test Engraving: Before making the final engraving, conduct a test on a similar material to validate quality and adjust settings if necessary.
- Final Engraving: Once you think the provisional result matches what you want, make the final engraving.
- Cleaning: With the QR code engraved on the metal, you must now properly clean the area to finish the entire process.
What do you need to engrave a QR code on metal?
Although the step-by-step is now clear, there is another relevant factor that you must consider to learn how to engrave the QR code on metal with a laser: the materials and tools you need.
It should be noted that, to achieve quality results, this kind of process must be handled by the company specialised in industrial marking.
Tools to engrave a QR code on metal with laser
- Laser engraving machine: Totally equipped and regulated to work with the selected type of metal.
- Design software: To create and adjust the QR code.
- Fume extraction system: To handle the waste generated while engraving the QR code on the metal.
Materials necessary to engrave a QR code
- Suitable metal: In other words, the part you wish to engrave must first go through a preparation and cleaning process.
- Cleaning products: Essential to prepare the metal surface, both before and after engraving.
Benefits of engraving a QR code on metal with laser
This process of laser engraving QR codes on metal provides of series of fairly significant benefits to industries:
Durability of the laser engraving on metal
If you do laser engraving, you will obtain a result that is highly resistant to wear and rust, as well as high temperatures. You will never lose the information while the part is being used.
Precision and quality of laser engraving
Using this technique provides very precise handling to ensure great detail in the engraving, so that even the most complex codes are easily readable for any scanner.
Versatility of the laser engraving on any metal
The laser engraving technique perfectly adapts to a wide variety of metals and allows, providing different finishes and aesthetic effects. This means that it can be applied not only to the industrial sector, but also decoratively and aesthetically.
Efficiency of laser engraving for QR codes
Laser engraving development is fairly fast and can be automated, facilitating mass production of parts marked with QR codes without sacrificing a hint of quality.
News about engraving QR codes on metal
The sector is constantly updating with new fronts: new applications, cutting-edge technologies, and a tireless search for the best traceability possible. This is all in search of greater precision and reduced operating costs.
Moreover, integrating and improving automation processes and other technologies continue to open up new possibilities for mass production and optimisation in real time.
Test laser engraving for QR codes on metal
After seeing all the possibilities offered by engraving QR codes on metal, now is the time to put it into practise.
At COUTH®, you will find a team of professionals specialised in applying industrial marks who will be delighted to learn about your case and provide personalised monitoring based on your needs.
It’s still not too late to improve your business’ quality and traceability!