Only fiber lasers can be used for laser engraving. This is because chemical etching is a process used with metals,. In fact, the elevation of laser engraving can reach up to 80 microns, while the laser engraving depth can reach 500 microns. This is because etching is a process used with metals, which react better to fiber lasers.
In fact, the laser you need depends on the type of material you want to engrave, not the marking process. As you can see from the graph below, metals absorb fiber laser wavelength (1064 nm) more efficiently than CO2 laser (10.6 µm). For this reason, fiber laser (a type of solid-state laser) is a better choice for marking metals. Laser cutters are excellent tools that offer the ability to create many different things.
From simple boxes to engraving detailed graphics on wood or building complex three-dimensional objects, in this beginner's guide, I'll explain the basics of how a laser cutter works, show you some examples of things that can be done with a laser, and how to create designs for cutting or engraving with laser. You will also learn what material can be used and how to access a laser cutter. The term “laser” is an acronym for “Amplification of Light by Stimulated Emission of Radiation”. Laser technology was developed in the 1960s.
CO2 laser cutters are capable of cutting and engraving a wide range of non-metallic materials such as wood, paper, acrylic, textiles and leather. For more materials and details, see here. In a CO2 laser cutting machine, the laser beam is created in a tube filled with CO2 gas. Next, with the help of mirrors and lenses, the laser beam is directed to the laser head and focused on the surface of the material.
Electronically controlled motors move the laser head to cut or engrave the desired shape into the workpiece material. The shape is defined by an input file that can be a vector or rasterized image. The cut of a laser cutter is very small. The term cut refers to the width of the groove made during cutting.
This varies from material to material and also depends on the specific configuration of the laser. For many materials, the bleed will be between 0.05 mm (0.002 in) and 0.5 mm (0.02 in). Marking occurs when the laser does not remove material, but, for example, changes the color of the material. With CO2 laser cutters, marking is mainly used when working with metals, a marking solution (for example,.
CerMark or Enduramark) is applied on the surface of the workpiece. After drying of the marking solution, an etching is performed. Heat from the laser binds the solution to the metal, resulting in a permanent mark. CO2 laser machines are capable of cutting and engraving a variety of materials.
However, there are also materials that cannot be processed. This may be because the laser cannot cut the material or toxic gases would form. In addition, highly flammable materials cannot be used. Depending on the power and other specifications of the machine you are using, the maximum thickness of the material that can be cut will vary.
The power of laser cutters is measured in watts. Typical power levels range from 30 watts to 120 watts. Higher power lasers are mainly used only in industrial applications. Most CO2 laser cutters work much like a printer.
The laser cutter comes with specific drivers that convert an image from a computer to a format that the laser cutter can read. Once you have your design ready, it's time for the last step: laser cutting. Laser cutters are very powerful machines. You can create great things with them, but they are also potentially dangerous, so first a warning, before using a laser cutter, be sure to read and understand all the safety instructions that come with it.
Also, keep in mind that the wavelength of a CO2 laser is in the infrared part of the light spectrum, making it invisible to the human eye. The red dot you see on many machines on the surface of the material is just a positioning aid and not the laser beam that actually makes the cut. Finally, you should be prepared to make your first cuts. It may take a few tries to find the ideal configuration for your material.
Always change only one parameter in a test process. For example, start with power by testing different values in increments of 5 to 10%. Once you're satisfied with the results, don't forget to write down your settings for future reference. Hom mutch cm should I set my laser on my plastic to cut, for example, and how far from 3 mm of wood to cut? No, I don't have CO2, just a 30 watt laser.
Or I look and they say between 2.5 and 5 cm but now I wonder when is 5 better and when is 2.5 cm better? Kind Regards. The vaporization temperature depends on the materials. For example, the vaporization temperature of aluminum is 2327° C, copper is 2595° C and iron is 3000° C. Therefore, if the laser is able to increase the temperature to the vaporization temperature, the material can be etched.
The large engraving area of 432 x 406 mm allows you to engrave patterns in one go. You can also engrave several objects at the same time by placing them in the engraving area. XTool D1 is a high precision diode laser engraving machine, perfect for DIY projects and small businesses. A system of equal power can record faster than another if it is built with better optical components and has optimized laser parameters.
So do the math and try to calculate whether the benefit of installing a laser engraver in your office or workshop is worth it. For a better understanding of how laser engraving works, it is essential to take a look at sublimation. If you still can't decide which one is best for you, we have prepared an article to help you choose between engraving and engraving and another to learn more about the different laser marking processes. Especially if you are a student, schools, colleges and universities are also a good place to look for a laser cutter.
Powerful lasers require constant cooling, but there are important differences between different solutions. So now that you have a basic understanding of the available settings, you may wonder how to find the right settings for your projects. A good starting point is the manual of the laser cutter. A laser-engraved mark will remain legible throughout the life of the part with better readability than other direct part marking technologies.
If, for example, a bad guy has a laser gun pointed at you, grab the nearest mirror to deflect the beam of light away from you. In addition, you should keep in mind that air filters produce a lot of noise that can distract you in case you are thinking of installing a laser engraver in your office. Once used strictly by industrial manufacturers, laser engraving is increasingly adopted by small businesses, product designers, manufacturers and even amateurs. Quite a few factors need to be considered, such as the material being engraved, the size of the design, and the laser power, to name a few.
We will understand it with the core of his work, the materials that can be engraved and the different types of laser phenomena. A laser cutter is a computer-controlled machine that uses a laser beam to cut or engrave material with precision. . .