Fiber lasers are the go-to option for part marking, engraving and especially metal. They are very well established in many industries and are often found on manufacturing lines, workshops and more, all around the world. Fiber lasers operating in the 1 μm region have the ability to mark near enough all metals found in industry. With its stable architecture, beam quality, high power outputs and efficiency, it is no wonder the fiber laser is the most commonly applied marking laser in the market to date. 

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Operating at the 1,064nm wavelength, they are very well suited to metals, but can also operate on a much wider array of materials. This is why they are the most common choice for traceability marks such as barcodes, QR codes and text. Plus, their use for other graphics on things like personalised items, switches, phones, jewellery, becomes more popular day-by-day.

How do fiber laser engravers work?

When a fibre laser meets an object it evaporates the surface material to expose deeper material, essentially &#;carving&#; by chemical and physical changes. These changes are caused by the light energy (photons) reacting in the target area.

Fibre lasers possess a high electro-optical conversion efficiency, in layman&#;s terms this means they convert more of the energy to light (compared to CO2). In reality, this means fibre laser systems require less power to effect a material, resulting in a low power consumption for a fibre laser marking machine.

Types of Fiber Lasers

There are two common types of fibre laser you will find offered from manufacturers, we offer both types to suit the users budget. The main difference between these types of technology is the variety of pulse width and frequency.

Q-Switched

These used to be the most commonly found type of fiber laser source, it is also the cheapest. They are typically not as efficient nor do they possess as wide a range of pulse modulations. In turn, this means they are less flexible than a MOPA laser and are much more prone to deforming different materials.

MOPA

A MOPA laser is much more flexible, they have become far more popular and widely available, but not all MOPA systems are the same. Good MOPA systems will have a wide range of pulse width and frequency adjustments available they can suit more materials and are less prone to creating unwanted deformations once setup correctly. However, as mentioned, MOPA laser sources are quite varied in themselves, with both quality and modulation versatility differing between manufacturers. Unfortunately, there are now many MOPA systems on the market with only one or two Pulse Width&#;s and PRF0, they will be marketed as suitable for metal, but won&#;t be particularly good at it as you would realistically want upwards of 5 Pulse Width&#;s to work effectively (our own systems have 16).

All Lotus Laser Systems&#; fiber lasers incorporate the MOPA technology, and each have the ability to create very short duration pulses (and therefore lower pulse energies), reducing the heat imparted to the material. This reduction in the heat affected zone (HAZ) provides advantages when marking metal and plastic such as less burning at the edges, and a more homogeneous, higher contrast marking.

Pros

• Versatile range of applications
• Long-life and maintenance-free period
• Fast engraving speeds

Cons

• More expensive than CO2 lasers
• Less versatile for marking than UV
• Not suitable for some organic materials (wood, glass, fabric etc.)

Advantages and disadvantages of UV laser marking machine

Ultraviolet laser marking machine is no stranger to us after years of development and improvement. Some people have heard of it, some people know its use, and some people will use laser marking machine and ink jet Code machine confusion.... But it is difficult to know the advantages of the UV laser marking machine, and it is even more difficult to know its shortcomings. Even the merchants will only tell you how their machines are good and what to pay attention to when using them. They will not tell you. Where is our machine not good and so on. From this question, you can clearly understand the advantages of the UV laser marking machine, instead of knowing it piecemeal, and you can also come into contact with the shortcomings of this UV laser equipment.

All laser marking machines have similar advantages and disadvantages, not only UV laser marking machines, other laser marking machines can also be used as a reference according to this article.

Advantages of UV laser marking machine:

1. No consumables are needed, and it is not easy to be erased

The UV laser marking machine does not require consumables in the marking, and the physical or chemical reaction with the product forms the pattern text, which is easily erased.

Second, micron marking, fast speed

The UV laser marking machine marks fine, and the deviation rate can reach the micron level. The marking line can be adjusted to less than or equal to 10 microns, and can be used as a nano-laser to engrave 100 I love you. The plastic is marked with a marking speed of mm/s, and five ordinary-sized characters can be marked in only 3s.

Third, cold laser marking, small thermal impact

The wavelength of the ultraviolet laser marking machine is 355nm, which belongs to the cold laser technology , The cold processing of the product, especially in the marking of plastic and other materials has a great advantage, and the quality of the processing will be greatly improved and improved when the thermal impact is small.

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Fourth, long life, stable performance, maintenance-free

The life of the UV laser marking machine can reach 7w hours free of charge Maintenance, the theoretical life can be up to 10w hours, beyond the scheduled use period, the light output will become weaker, reminding the need to replace the laser. No consumables are required for life, and only need to be connected to the power supply, which reduces later maintenance costs. The power of the whole machine is determined according to the power of the UV laser marking machine. It is generally between 500w and w in the working state, and the working performance is stable. After adjustment, there will be no deviation, and the marking is not clear.

Five, powerful functions

It can be customized according to customer needs for rotary marking, assembly line marking, internal and external marking, etc. Ability to automate work. The marking software has good compatibility, supports mainstream image formats, and can directly use SHX and TTF fonts.

Through the five advantages, we understand the power of the UV laser marking machine, and we have the urge to buy it, but don't worry, let's take a look at the UV laser marking machine first After understanding the advantages and disadvantages, I will analyze whether this UV laser marking machine is suitable for my own use.

Disadvantages of UV laser marking machine:

First, the product material is targeted:

In theory, the UV laser marking machine cannot mark metal products, and wood products cannot be marked. If you need to mark metal products, it is recommended to use a fiber laser marking machine. If you need to mark wood products, it is recommended to use a carbon dioxide laser marking machine. If these two types of material products only need to destroy the surface paint to form Font, UV laser marking machine can also do it.

Second, expensive and difficult to move Price for pcs CO2 laser marking machine, 3-4 pcs fiber laser marking machine. The whole UV laser marking machine is about 200kg (with a water tank). The plane moves at a short distance and there are pulleys that can move properly. It is a little difficult to move at a long distance. If it is automated, it will be more difficult to move. The parameter position needs to be adjusted well before the corresponding effect can be played.

3. Maintenance

In terms of maintenance, it is necessary to pay attention to dustproof, antifreeze, and lasers during use If the temperature is too high, it will alarm, check whether the water in the water tank is sufficient for water cooling, and pay attention to whether there is too much dust in the fan for air cooling. It is recommended to use it in a clean room and indoor use above 0°C. In order to achieve normal life, if the maintenance is not good, the life of the laser will be greatly reduced.

As we have known for quite some time, the success of Leadtech Coding in the future will depend greatly on our ability to strike a balance between valuable human insight and interaction with technology.

LEAD TECH Technology Co., Ltd.&#;s goal is to achieve customer satisfaction through excellence in design, supply chain management, manufacturing and repair solutions.

In conjunction with retraining and upskilling efforts, LEAD TECH Technology Co., Ltd.&#;s workers should focus on growing unique human skills that high-tech machines are unable to replicate, such as strategic and abstract thinking, complex communications, creativity and leadership competencies.

Contact us to discuss your requirements of uv laser marking machine. Our experienced sales team can help you identify the options that best suit your needs.