UV laser and fiber laser marking machine

Laser marking is the best and fastest way to mark an object. It does not even touch the object. Unlike other methods, laser marking is more reliable and safer. This article “UV Laser vs Fiber Laser Marking Machine” will guide you to learn more about UV and fiber laser.

This article mainly discusses the similarities and differences of each method. If you know the differences, then you can choose the right method for your project. 

UV laser and fiber laser marking machines: similarities

All laser marking machines have the same purpose: to mark objects. Both UV and fiber laser marking machines are popular for a wide range of applications. People use them to mark metals, plastics, wood, and more. While they have some differences, they share some similar features.

UV Laser vs. Fiber Laser Marking: Precision and Accuracy

Both UV and fiber laser marking machines are highly accurate. They both use a highly focused laser beam to create high-quality marks on materials. The end result is always fine and detailed.

UV and fiber laser marking machines can be used multiple times. They have high repeatability in general marking jobs. Generally speaking, both laser devices are suitable for most solid materials. Fiber lasers may have some difficulties when processing organic materials.

Both fiber and UV laser marking machines are non-contact processes. Therefore, marking with these machines ensures the integrity of the material surface. This means that both laser sources produce a smaller heat-affected zone near the mark.

Fiber laser vs UV laser marking machine: non-contact process

Both fiber and UV laser marking machines use a laser gun in the marking process. The laser source ultimately emits a focused laser beam that hits the object through the laser gun. When the laser hits the object, the temperature rises rapidly. This rapid situation usually melts and vaporizes the material from its surface. In the end, what you see is a permanent, high-contrast laser mark. The entire process is non-contact.

Once the process is complete, there is no need to touch the material. You don’t even need to do any surface preparation. However, some non-metallic or organic materials may require surface preparation immediately after laser marking.

UV laser and fiber laser marking machines: permanent marking

UV and fiber lasers leave permanent marks on objects that cannot be easily erased. Unlike painting or stickers, laser markings last longer than the product. Most industries prefer them for marking products because of their ability to leave long-lasting marks.

There are many different types of laser marking, but there are generally six main types. Laser ablation, foaming, and annealing are some of the common methods. Regardless of the process, all laser marks are permanent. However, the contrast and depth of the engraving may vary depending on the material and laser settings.

Fiber laser VS UV laser marking machine: low maintenance cost

Fiber and UV laser marking machines are low maintenance. Both are designed to last longer and generally require no consumables. Fiber lasers can last up to 100,000 hours, while UV lasers can last up to 20,000 hours. During this time, they both require minimal maintenance.

You may need to clean the lens and check the cooling system. In addition, the laser machine’s height and focus must be calibrated each time you use the laser to mark an object.

Most modern laser marking machines have advanced laser technology. Both fiber and UV laser marking machines have efficient cooling systems. As a result, your laser machine will not overheat frequently, which helps to extend its service life.

UV laser and fiber laser marking machines: environmentally friendly technologies

Both UV and fiber laser marking machines require no consumables. They also do not produce fumes or hazardous gases when laser marking. Therefore, these laser marking machines are both economical and environmentally friendly.

Additionally, UV and fiber lasers work without physical contact. Therefore, there is no room for error when marking materials.

The entire laser marking process is completed in a controlled environment. It does not produce sparks and cannot accidentally cause fires in nearby dry objects. Therefore, both fiber optic and UV laser marking machines have proven to be very environmentally friendly technologies.

Fiber laser vs UV laser marking machine: user-friendly design

Both fiber and UV laser marking machines have user-friendly systems. They are easy to use and simple to set up. Although some machines come with a display, they all have a simple operating system.

They are usually touch screen. For example, modern CNC laser marking machines are equipped with a user-friendly display. The machine can be operated in more than 20 languages, which is very easy. Even a simple understanding of lasers can do the job.

UV laser and fiber laser marking machines: the difference

You already know that UV and fiber laser marking machines are the same in some ways. However, they still have some differences that are most important in the real world. Because of these differences, they are usually better suited for different jobs.

UV laser and fiber laser marking machine: wavelength

UV and fiber lasers have significantly different wavelengths. The wavelength of the laser plays a crucial role when marking different materials. 

Most UV lasers have shorter wavelengths, between 150 and 350 nm. Fiber lasers have wavelengths ranging from 780 nm to 2280 nm, but other types of lasers do not. Laser wavelength differences can significantly affect a material’s energy absorption. For example, metals typically require laser wavelengths of 1064 to 1070nm. Note that values ​​greater or less than this do not apply unless the metal part is coated.

Additionally, lasers with shorter wavelengths are often well suited for marking heat-sensitive devices. Because of this, UV lasers are often used on glass, plastics, and some metals. Fiber lasers, on the other hand, are suitable for materials with high energy densities.

Fiber Laser vs. UV Laser Marking: Material Compatibility

Laser wavelength usually determines which laser can be used to process which material. In this case, both fiber and UV laser marking machines are very versatile. They can both produce permanent marks on a variety of materials. However, there are usually some differences between them.

As we all know, UV lasers produce shorter wavelengths. Therefore, they usually generate less heat. Because of this, people prefer this type of machine to process heat-sensitive products. Processing plastic or glass requires extreme care. In this case, UV laser marking machines can be of great help.

Fiber lasers produce higher wavelengths than ultraviolet light. Their laser wavelengths are very suitable for processing metals. Therefore, fiber laser marking machines are often used in the metal industry.

UV laser and fiber laser marking machine: heat generation

Regarding the generation of heat, the laser wavelength is very important here. As you know, UV lasers usually operate at a wavelength of 150 to 350 nm. Compared to other laser marking methods, UV laser marking is known as a cold marking process. This means that they generate less heat and reduce the risk of material damage. Therefore,  UV laser marking machines  are very suitable for heat-sensitive materials.

On the other hand, fiber laser marking tools have a longer wavelength. Therefore, they generate more heat during the marking process than UV lasers. As a result, a heat-affected zone (HAZ) may form on the object, especially on metals. Fiber laser marking machines are best suited for hard materials.

Fiber laser VS UV laser marking machine: marking speed

Again, laser wavelength is also important when considering marking speed. Fiber laser marking uses a longer wavelength. It provides faster marking speeds on metals and plastics. It typically produces high-intensity light that can quickly engrave or mark a surface. One pass is usually sufficient to create a high-contrast mark.

UV lasers, on the other hand, have shorter wavelengths. They can produce finer marks, but the process is slower than with fiber laser marking machines. You may need multiple passes to achieve high-contrast results.

UV laser vs. fiber laser marking machine: cost

UV laser marking machines are usually more expensive than fiber lasers. It is well known that UV lasers are more environmentally friendly than fiber lasers. They generate less heat and are considered cold laser marking machines. Engineers must use complex settings to achieve such characteristics, which adds additional costs.

Fiber lasers, on the other hand, are more cost-effective. They use a longer wavelength and are ideal for marking metals and plastics. Fiber lasers are widely used in industrial settings and in many DIY projects, making them a great choice for beginners.

Fiber laser vs UV laser marking machine: cross-industry applications

Considering the above factors, you can now guess the applications of each laser type. Fiber lasers are more powerful. They are suitable for metals such as SS, Al or copper. Therefore, you can find its applications in the automotive, aerospace and electronics industries. Note that the high energy of fiber lasers usually allows you to perform deep engraving.

UV lasers, on the other hand, are much gentler. They are perfect for marking delicate parts and are ideal for heat-sensitive products. The packaging, medical and cosmetic industries use this equipment extensively. It generates less heat and reduces the risk of material deformation.

Summarize

Both fiber and UV laser marking machines have some common advantages. They are very precise, can be used on a wide range of materials, and are environmentally friendly. They are also easy to use and do not require much maintenance. But they also differ in some ways. The most critical difference between them is the wavelength. UV lasers have a shorter wavelength, while fiber lasers have a longer wavelength.

UV lasers  don’t generate much heat, but take time to complete. In contrast,  fiber lasers  are powerful, fast, and inexpensive, but can form heat-affected zones on metals if not handled properly. Each method has advantages and disadvantages, which means they can be used for different things.

For more information on UV and fiber laser marking machines, visit our machine page. You can also leave a question or request an instant quote for your equipment. Our customer support team is always ready to answer your questions.