Fiber Laser Cutting Machine Maintenance Guide

Fiber laser cutting machine is suitable for high-precision cutting of metal plates and metal tubes. They are widely used in modern industry due to their many advantages such as fast cutting speed and high cutting quality. However, as an advanced high-precision metal cutting tool, fiber laser cutting machines are also more expensive than other traditional metal cutting equipment. Therefore, ensuring that the machine can operate stably and extending its service life during long-term use has become a way for users to improve economic benefits.
Any machine will have a certain loss rate during use, and fiber laser cutting machines are no exception. However, if you pay attention to the maintenance of the machine in daily use, you can prevent more serious problems with the machine, thereby avoiding high maintenance costs and losses caused by downtime. Correct maintenance of fiber laser cutting machines is a key factor in maintaining their good performance and extending their service life. This article provides you with a daily maintenance guide for fiber laser cutting machines. This guide is dedicated to providing users with a reference for smoothly maintaining the machine.

Fiber laser cutting machine operation precautions

Correct operation is the prerequisite to ensure the stable operation of the machine. The following points are the preparations before starting the fiber laser cutting machine. Users must strictly follow these safety precautions to avoid personal injury or machine damage.

Make sure that all parts of the machine are grounded completely and reliably. It is strictly forbidden to start the machine without a ground wire.
Every time the machine is turned on, the water pump must be checked for lack of water. Do not start work without water.
Check whether the cooling water circulation is normal and ensure that the water quality is clean and free of debris. It is recommended to use pure water and replace circulating water every month.
Before starting the machine, carefully check the pressure of the laser auxiliary gas. When the air pressure is insufficient, it needs to be replaced in time.
Check whether there are leaks in the air pipe interface of the laser cutting head and the cooling water to ensure the normal supply of auxiliary gas and cooling water.
It is strictly prohibited to keep flammable and explosive items near the laser cutting machine to prevent fire.
During the operation of the machine, the operator is strictly prohibited from leaving without authorization to avoid unnecessary losses.
To ensure the normal operation of the machine, operators need to be trained before taking up their posts.
During the operation of the machine, the operator needs to observe the working condition of the machine at any time. When the plate cannot be cut through, slag discharges, burrs occur, or the machine makes abnormal sounds, the machine should be stopped and inspected to troubleshoot the fault to avoid serious damage to machine parts.

Daily cleaning of fiber laser cutting machine

To extend the service life of the fiber laser cutting machine, the simplest maintenance method is to do daily cleaning. Operators must clean the machine after each job. Although this is a simple task, it can prevent serious problems in the future.

When you’re done cutting for the day, empty any drawers containing waste. If workers do not clean the drawer after using it, the drawer will eventually become stuck, which will greatly affect the operation of the workbench.
Workers must clean the work surface after cutting. Only by clearing the debris on the table can you ensure that the next time you place the cutting board, it will be flat and not tilted.
Please check whether the laser cutting head is clean. When contaminants are found, the operator can use a clean towel to clean the laser cutting head. The laser cutting head is the core component of the machine. If it fails, it will directly affect the cutting effect and cause economic losses. Therefore, workers should clean the outside of the laser cutting head, nozzles, connecting cables, and protective windows. A clean laser cutting head helps achieve the most precise laser cutting.
It is also important to keep the environment around the machine clean. Scrap materials scattered around machines are safety hazards, and workers can trip over them and injure themselves. Therefore, after completing a day’s cutting tasks, clean and inspect the work area to ensure a safe and tidy workplace.
Fan cleaning. After the machine is used for a long time, a large amount of dust will accumulate in the fan, which not only makes the fan make a lot of noise but is also not conducive to the heat dissipation of the machine. Therefore the fan should be cleaned regularly. First, turn off the power, remove the air inlet duct and air outlet duct from the fan, and clean them. Then turn the fan upside down and clean the blades until they are clean.

Optical lens maintenance

The optical lens of the fiber laser cutting machine is located in the laser cutting head. The protective lens is used to block spatter generated by metal cutting and protect optical components such as focusing lenses and electronic sensors. As a consumable product, protective lenses can extend their service life through regular cleaning, thereby reducing loss costs. However, when the protective lens is damaged, it needs to be replaced in time to ensure that other optical components are not damaged and to ensure the quality of laser cutting. To extend the service life of optical lenses, you can refer to the following maintenance methods:

The protective lens of the laser cutting machine is easily affected by smoke and dust, and it is recommended to clean it once a day.
Do not directly touch the surface of optical devices such as the focusing lens, protective lens, and QBH laser head to avoid scratching or corroding the lens.
When the surface of the lens is stained with dust, dirt, and water vapor, it will seriously affect the use of the lens, and the lens should be cleaned in time.
It is strictly prohibited to use water and detergents to clean the lens surface. Because the surface of the lens is coated with a special film, water, and detergent will damage the surface of the lens. Lenses can be cleaned using a cotton swab dipped in alcohol.
Do not place the lens in a dark and humid place, otherwise it will cause the lens surface to age.
When installing or replacing the reflector, focusing mirror, and protective mirror, do not use excessive force, otherwise, the lens may be deformed and the beam quality may be affected.
Optical lenses should be stored properly to keep the quality of the lenses intact. The storage environment temperature is 10~30℃. Do not put the lenses in the freezer or similar environment, otherwise, frost will condense on the lenses when they are taken out, thus damaging the lenses.

Water chiller maintenance

The water chiller is responsible for cooling the laser generator and laser cutting head and is an important part of the fiber laser cutting machine. To ensure the stable operation of the fiber laser cutting machine, we also need to perform regular maintenance on the chiller. If you encounter a fault, be sure to ask professional technicians to repair it, and remember not to disassemble the machine by yourself. The following aspects should be paid attention to in the daily maintenance of the fiber laser cutting machine chiller:

Clean the heat sink regularly. The cleaning method is as follows: carefully scrub the heat sink with a brush, and then blow clean with compressed air.
Dust the condenser regularly.
Check the water level of the chiller regularly and add pure water in time.
Check whether the joints in the chiller system are leaking and whether the pipes are aging and replace them in time.
If the quality of the cooling water becomes poor or turbid, all the deteriorated cooling water should be drained out in time and replaced with new cooling water.
Remove impurities from the filter element. If the filter element is damaged, it should be replaced in time.

Guide rail maintenance

Only when the guide rail of the fiber laser cutting machine is flat and straight can the highest quality cutting effect be obtained. Therefore, operators must check the verticality of the rails and the straightness of the machine every few months. When problems are discovered, they can be corrected by tightening bolts and screws. In addition, the operator should ensure that the steel belt is taut to prevent hysteresis.
Fiber laser cutting machines produce a large amount of dust and smoke during operation. During long-term use, this dust will be deposited on the surface of the guide rails, affecting the processing accuracy of the fiber laser cutting machine. In addition, since the guide rails are used for guidance and support if they are operated in a dust-filled environment for a long time, the service life of the machine will be shortened. Therefore it is recommended to clean the guide rails every two weeks.

Check of auxiliary gas

Fiber laser cutting machines require auxiliary gas to complete metal cutting work during use. These gases help the laser pass through the material faster and improve the quality of the laser cut. Therefore, auxiliary gas is also a part that should not be ignored. First, the gas must be as clean as possible. Also, check the filters to make sure they are functioning properly.
Check for gas leaks. When gas leaks are found, the gas cylinder must be replaced. Gas leakage will not only slow down the flow rate, but also affect the cutting performance of the machine, and gas leakage also poses a major safety hazard.

Summarize

Maintaining a fiber laser cutting machine takes time, but this preventive maintenance can prevent more serious problems in the future. When machine parts are damaged due to improper maintenance, users need to spend money to replace parts and bear the losses caused by downtime. Therefore, if you want to keep your business running smoothly, it is necessary to spend time on preventive maintenance of your machines. Proper maintenance of fiber laser cutting machines according to the above methods can maintain the good performance of the machine and extend its service life. It should be noted that during the operation of the laser cutting machine, if you encounter machine failure, you need to contact the fiber laser cutting machine manufacturer and ask professional technicians to help solve the problem. Remember not to disassemble the machine by yourself.
Fiber laser cutting machine is a new type of precision metal cutting equipment. As a professional laser cutting machine manufacturer, AccTek Laser provides users with different models of machines to meet different cutting needs. Communicate online to learn more about fiber laser cutting machines.

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