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The Ultimate Guide of FIBER LASER CUTTER

Views: 66     Author: Site Editor     Publish Time: 2022-01-19      Origin: Site

1. What Is Fiber Laser Cutter

Fiber laser cutter is a kind of CNC laser metal cutting system with high quality, high speed, high precision and high efficiency. It is suitable for all kinds of metal cutting which will be your good metalworking partner. It is equipped with different powers (1000W to 40000W) for cutting sheet metals and metal tubes of stainless steel, carbon steel, electrical steel, galvanized steel, aluminum zinc plate, aluminum, aluminum alloy, titanium alloy, copper, brass, iron and other metal materials with different thicknesses.

Fiber laser cutter is also known as fiber laser metal cutting machine, fiber laser cutting machine, fiber laser cutting system, fiber laser cutting equipment.


2. What Are the Differences Between CO2 Laser VS Fibre Laser Cutter

Fibre laser Cutter: Fiber lasers are best suited for high-contrast markings like metal annealing, etching, and engraving. They produce an extremely small focal diameter (resulting in intensity up to 100 times higher than a CO2 system), making them the ideal choice for permanent marking of serial numbers, barcodes, and data matrix on metals. Fiber lasers are widely used for product traceability (direct part marking) and identification applications.

CO2 Laser Cutter: CO2 laser marking is ideal for a wide range of non-metallic materials including plastics, textiles, glass, acrylic, wood, and even stone. They are used in pharmaceutical and food packaging as well as the marking of PVC pipes, building materials, mobile communications gadgets, electrical appliances, integrated circuits, and electronic components.


3. Types of Fibre Laser Cutter

If based on the laser generator, the laser cutter can be divided into:

  • solid laser cutter. The solid laser cutter can be divided into the bonus stones laser cutter, YAG laser cutter.

  • semiconductor laser cutter.

  • liquid laser cutter.

  • gas laser cutter.


If based on the structure, the laser cutter can be divided into:

According to the relative movement of the cutting head and the table, the CNC laser cutting machine can be divided into:

Beam fixed form (fixed light path)

Beam movement form (flying ray)

A semi-fixed and semi-mobile hybrid form

Besides, there is also an articulated movable arm fixed optical flight beam transmission form, known as a constant flight path.

In the cutting process for the laser cutter which adopts flying rays, only the cutting head moves along the X and Y direction, and the position of the table is fixed.



4. How Long Does A Fibre Laser Cutter Last? (lifetime/Life Expectancy)

Most online sources claim that fiber lasers last 100,000 hours whereas CO2 lasers last 30,000 hours. This is not entirely true. These numbers refer to a value called 'mean time between failures'(MTBF), which isn't the same for all fiber lasers. In reality, you will see different numbers for different types of fiber lasers.

The MTBF measures the reliability of a laser by indicating how many hours the laser is expected to function before a failure occurs. It is obtained by testing multiple laser units, and then dividing the total number of operational hours by the total number of failures.  

Although this value does not exactly tell you how long a fiber laser can last, it still provides a good idea of the laser's reliability.

If you really want to know the exact lifespan of a fiber laser, you'll be disappointed as there's no real answer. In truth, fiber lasers have critical points in their lifetime when they can fail.

Here's what you need to know if your laser experiences failures at any of these moments:  

Early life: If a fiber laser has fabrication errors, it will likely have failures early on. You should ensure that you have a purchase guarantee that covers fabrication errors so that the laser can be replaced at no fees.

Normal life: Once you've passed the first critical period of early life, the MTBF value provides you a good idea of your laser's chances of failure. A high MTBF is a good assurance that everything will go smoothly, but not a guarantee. You can prepare for failures during the normal life in different ways: have a spare laser readily available, rent a laser while yours is being repaired, or have a prolonged purchase guarantee.  

End of life: When fiber lasers are near their end life, chances of failure increase drastically. Even then, a high-quality industrial laser can often operate way past its MTBF.


5. The Working Principle of Fibre Laser Cutter

The working principle of the fiber laser cutting machine is similar to that of a laser welding. It's just that the temperature of this machine crosses 11000 ℃ which is enough to gasify any material. Thereby making gasification an important part of the melting amid the laser cutting process.

Besides, the laser cutting process of some materials like that of carbon and ceramics is directly a part of the gasification process. This is when the inert gas flows, and the incision melts the metal helping to create smooth and straight cuts. The jet’s oxygen is then used to increase the cutting speed. This incision is mostly narrow, precise in size, smooth on the surface, and has a better cutting quality over other heat using cutting materials.


6. How Does Fibre Laser Cutter Work?

Fiber lasers use pump light from what is called laser diodes. These diodes emit light that is sent into the fiber-optic cable. Optical components located in the cable are then used to generate a specific wavelength and amplify it. Finally, the resulting laser beam is shaped and released.


7. How to Choose A Fibre Laser Cutter

Watching a fiber laser cut is amazing. They remove material so quickly it often looks more like an inkjet printer than a metal cutting machine. And when it comes to maximizing profit time is of the essence.

Part cycle time is vital for American manufacturers because fixed costs are so high. Part costs explode if parts are produced slowly. Today, technological advancements in machine design and drive technology enables fiber lasers to move at amazing speeds, often over 10,000 ipm, or 250 m/min. But speed alone does not relate directly to throughput. Your overall productivity relies on other factors. If your machine is under powered then cut speed will be unnecessarily slow. If your machine dynamics are poor, then all the power in the world won't help you. And, if your sheet exchange is slow, your machine will sit idle for hours of the week.



8. How to Care For the Fibre Laser Cutter?

  1. Clean the Linear Guide and Fill Lubricate Oil to It

     The smoke and dust which is generated during the cutting process will be harmful to guide rail after a period of usage, thus daily cleaning is needed. After cleaning, lubricating oil is needed to guarantee more precision cutting and higher cutting quality.


  2. Adjustment of Synchronous Belt

    Too loose or too tight a synchronous belt will result in the abrasion of the synchronous belt. Adjusting the synchronous belt periodically to ensure stability is necessary. You can consult our technician for suitable tightness.


  3. Water Tank Cleaning and Circulatory Water Changing

    Make sure to fulfil the laser diode with circulatory water before starting since the quality and temperature of circulatory water affect the service life of the laser diode directly. Clean water tank and change circulatory water regularly (once a week is advised).


  4. Reflector and Focusing Lens Cleaning

    After a period of usage, the smoke and dust will adhere to the surface of the reflector and focusing lens, which will affect the thickness, precision and quality of cutting. Hence, cleaning them with pure alcohol weekly is necessary and use a professional cleaning cloth.



9. Operations of Fibre Laser Cutter

Before using this laser cutting machine, please grasp the machine-related operation method and understand the operation of the various parts of the machine, the correct operation is the effective measures to ensure the normal work of the laser cutting machine and personal safety. When using the laser cutting machine, follow the following precautions and inspections before use.


Preparation and inspection before use the laser cutter

  1. Check whether the machine oil level is in the normal range, otherwise add the oil to the normal range.

  2. Check the relevant water, gas channel, to ensure that the air and water flow do not leak, and the quality of gas and cooling water is normal, not contaminated.

  3. Check the coaxially of the laser and the gas nozzle to ensure that the laser beam is ejected from the center of the gas nozzle.

  4. Check whether the mouth is in accordance with the cutting process requirements, otherwise, replace the appropriate cutting gas nozzle.

  5. Check whether the auxiliary gas for cutting is properly connected, otherwise access the auxiliary gas for cutting and ensure that the gas pressure has been adjusted to the appropriate level.





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