The current laser cutting machines are high-power heavy-duty equipment, and a laser cutting machine with excellent technology and functions is relatively expensive. Its good performance makes subsequent work smoother and can also better reduce costs. So it is necessary to pay attention during operation, and to pay attention to maintenance and upkeep in order to increase the service life of the equipment, save costs, create greater benefits, and ensure good condition.

Today, taking the high-power laser cutting machine with a beam laser as an example, we will continue to take you through the monthly maintenance and upkeep process of the laser cutting machine.

The following maintenance work needs to be done every month:

1. Check for the presence and distinct markings of warning signs on all parts of the machine tool.

2. Check whether the screws at the connection between the X and Y skin cavities and the baffle are loose and whether they need to be tightly locked.

3. Check the thermal and cooling conditions of the chiller, check the water level and water quality of the chiller’s water tank, and promptly replenish the water tank and replace it according to the required water quality requirements.

4. Check all dust covers for contamination, disassemble and clean them, including:

(1) CNC control cabinet and CNC internal cooling fan;

(2) Dust cover and heat sink of the air compressor;

(3) Cooling fan of the chiller.

5. Disassemble the leather cavity to check whether the lubrication of the X and Y axis gear racks is normal. If there is severe oil separation, clean the gear racks first, then apply new lubricating grease, and check whether the installation screws of the gear racks are loose and need to be tightened.

6. Disassemble the front baffle of the module to check if the lubrication of the Z-axis screw is normal. If there is severe oil separation, it is necessary to clean the screw first, then apply new lubricating grease, and check if the module fixing screws and each limit switch sensing frame are loose. It is necessary to tighten them (some models do not have screw rods).

7. Check whether the set values of nitrogen, oxygen, and air pressure gauges are normal, such as the air inlet pressure value of the machine tool (next to the electrical cabinet side), and the air pressure valve of the dust removal damper cylinder.

8. Check the locking status of the front door screws of the machine tool, and clean and lubricate the sliding blocks and linear guides of the front door.

9. Check if the relay in the electrical cabinet is working properly and replace it if necessary.

10. Check all power switches and replace them as necessary.

11. Check whether the external cover door of the machine tool is loose and clean, and whether the fixing block of the entire machine and the fixing screws of the machine tool are loose and tightly locked.

12. Check the dust collector filter and replace the filter element if necessary. (If equipped with a dust collector)

13. Check the operation of the circular drag chain for cracks or wear, and check if the balancer is working properly and the tension is normal (only for groove models).

14. Remove the dust cover, check the contamination inside the B-axis shaft sleeve, and clean if necessary (only for groove models).

15. Remove the Z-axis cover, check the contamination and lubrication of the Z-axis rack, clean and add lubricating grease, and check the fixation of the small drag chain and travel switch collision block (only for groove models).

Fiber laser cutting machines are probably not unfamiliar to everyone, as they have made a qualitative leap in efficiency and accuracy compared to traditional cutting equipment. During the process of using a laser cutting machine, as the usage time prolongs, users may find that the cutting speed of the equipment is not as fast as before, and the cutting quality is not as good as before. This is almost a common problem for all devices, but the duration of maintaining performance varies. So, why does the cutting speed slow down and how can we solve it?

Focus area

The focusing area can affect the precision of laser cutting, especially in the diameter of the focusing spot. The diameter of the focal spot should be as small as possible to create a narrow slit; The diameter of the focal spot is directly proportional to the depth of focus of the focal lens. The smaller the depth of focus of the focal lens, the smaller the diameter of the focal spot.

Distance between nozzle and workpiece

The distance between the nozzle and the workpiece also affects the power reduction of the fiber laser cutting machine. Being too far can cause unnecessary waste of kinetic energy, while being too close can affect the dispersion ability of splashing cutting products. The appropriate distance is 0.8 millimeters. In addition, the fiber laser cutting machine mainly achieves cutting of uneven surface workpieces through subsequent adjustments, and the height of the nozzle and the workpiece should always be consistent during operation.

Cutting speed

The cutting speed has a significant impact on the power of fiber laser cutting equipment, and is directly proportional to the power of the fiber laser cutting machine. At the same time, the cutting quality is related to the quality of the laser beam and also to the characteristics of the laser beam focusing system, that is, the size of the laser beam after focusing has a significant impact on the quality of laser cutting.

Auxiliary gas

The size and pressure of the auxiliary gas also affect the power of the fiber laser cutting machine. The auxiliary gas is preferably compressed air or inert gas. If the thickness of the processed material increases or the cutting speed is slow, the air pressure should be appropriately reduced. Cutting with lower air pressure can prevent frosting on the cutting edges.

laser power

If the previous few items are excluded, consider a decrease in laser power. After prolonged use of any device, certain components will age. Laser is the core and most important component of metal laser cutting machines, and its power will decrease after long-term use. In addition to the above points, the performance, size, and thickness of the processed materials can also affect the power reduction of the fiber laser cutting machine.

Since we know the reasons for the slow cutting speed and poor cutting quality of fiber laser cutting machines, it is essential for users to pay attention to the precautions during use and maintenance in order to increase the lifespan of fiber lasers.

With the popularization of laser cutting technology in the field of metal manufacturing, more and more industrial manufacturers are starting to purchase fiber laser cutting machines for metal processing projects. When choosing a metal laser cutting machine, one of the most concerned issues for users is how thick metal plates my CNC laser cutting machine can cut.

The thickness of laser cutting metal plates is related to various factors, the most important of which is the power of the fiber laser cutting machine, which directly affects the cutting performance of the machine. This article introduces the ability of laser cutting machines with different powers to process the thickness of metal plates, hoping to provide a reference for purchasing fiber optic metal laser cutting machines.

Industry trends indicate that more and more metal manufacturers are choosing higher power fiber laser cutting machines for workshop production. But this does not mean that medium and low power laser cutting opportunities will be eliminated, as in many industries, medium and low power laser cutting machines can meet the production requirements of metal workpieces and have lower costs. So let’s first introduce the performance of this type of metal laser cutting machine.

How thick can the 1000W fiber laser cutting machine cut

The 1000W fiber laser cutting machine is a low-power laser metal cutting equipment that can cut 6-10mm carbon steel plates and 3-5mm stainless steel plates. It is a CNC laser equipment used in the field of cutting thin metals. This 1000W fiber laser cutting machine is typically priced between $13000 and $24000 and is commonly used in the advertising or handicraft processing industries to make metal advertising signs or indoor metal decorations.

There are also 1500W-3000W options for low-power fiber laser cutting machines, among which the 3000W fiber laser cutting machine can cut up to 20mm carbon steel plate and 10mm stainless steel plate. The price of the machine also increases with the increase of power.

6000W fiber laser cutting machine can cut multiple thicknesses

The 4000W and 6000W fiber laser cutting machines are representative of medium power laser metal cutting equipment, among which the 4000W fiber laser cutting machine can cut 14mm-22mm carbon steel plates and 8mm 12mm stainless steel plates; The 6000W fiber laser cutting machine can cut 16-25mm carbon steel plates and 12-16mm stainless steel plates. Laser metal cutting machines with this power range are often used for the production of large equipment components such as the automotive industry and engineering machinery. These are also the two most commonly used CNC laser metal cutting equipment in the industrial field. If these two power machines cannot meet your needs for cutting metal thickness, you can also choose an 8000W fiber laser cutting machine.

High power fiber laser cutting machine with a capacity of over 10000W

High power fiber laser cutting machines with a power of over 10000W have only been applied in the market in recent years, and metal manufacturers have expanded their business scope to thicker material ranges through ultra-high power fiber laser cutting machines. Some users who use 30KW laser metal cutting machines can stand out from their competitors due to their processing efficiency and product quality, which is an advantage that ultra-high power fiber laser cutting machines bring to enterprises.

The 12KW fiber laser cutting machine can cut up to 40mm carbon steel and 30mm stainless steel; The 30KW fiber laser cutting machine can batch process 50mm carbon steel plates and stainless steel plates. If cutting steel plates below 25mm, it can be completed in air. So, high-power fiber laser cutting machines can not only cut thicker steel plates, but also use air cutting within a certain thickness, which greatly reduces the cost of using auxiliary gases.

High power fiber laser cutting machine with a capacity of over 10000W

At present, the power selection range of fiber laser cutting machines is very wide, which also provides more possibilities for metal processing in different industries. The higher the power of the laser cutting machine, the thicker the sheet metal that can be cut, and the corresponding machine price will be more expensive. However, for large enterprises pursuing cutting efficiency and quality, the emergence of high-power laser metal cutting machines has played an important role in promoting enterprise development. As for which power of metal laser cutting machine to purchase, the most important thing is to start from the actual processing needs and purchase machines that meet the needs within the best budget.

At present, the mainstream laser cutting equipment on the market is mainly divided into fiber laser cutting machine, YAG laser cutting machine and CO2 laser cutting machine according to the laser generation system. Although they are all laser cutting equipment, their prices are different. Even for the same product, the prices are also different. What are the factors that affect the price of fiber laser cutting machine?

1. Equipment accessories: As we all know, mechanical equipment is also good or bad. Good products are relatively expensive, as are laser cutting machines. Its core technology determines the quality of laser cutting machines, such as lasers and control systems, which will affect the price of laser cutting machines.

2. Different models: different models in the same manufacturer (different power sizes, different cutting formats) will have different prices. Users need to choose the most appropriate power and format according to their cutting needs, so as to make the best use of things and bring higher value returns to the enterprise.

3. Equipment difference: the price of imported fiber laser cutting machine and domestic YAG solid laser cutting machine is also very different. The difference between them is that optical fiber has great advantages in sheet metal cutting, and its cutting speed is faster than other equipment.

4. After-sales service: When buying large equipment, after-sales service is a key issue. The comprehensive service can ensure the safety and timely maintenance of the equipment used by users. The after-sales service of different manufacturers also has advantages and disadvantages. Therefore, there will also be differences in price.

These are the four factors that affect the price of laser cutting machine. The choice of cutting machine should be customized according to your own needs and budget, and the thickness of cutting material should be determined by looking at the specific power requirements.

The ceramic laser engraving machine plays an important role in the current ceramic processing, providing efficient processing solutions for the current ceramic symbol processing. It adopts full digital laser marking and common laser die selection and deep carving skills, which has high stability, high accuracy and convenient operation, enabling more novel symbol processes to be realized and providing more possibilities for current ceramic process processing.

Because of the progress of modern knowledge of chemical raw materials, the development of glaze skills, and the manufacturing and creation of machines after industrialization, ceramic art has gradually separated, and the development space of ceramic art has increased. The ceramic art is no longer simply limited to the combination of soil and glaze, but integrates more humanistic and spatial factors, making ceramics more meaningful.

Laser engraving machine

The laser carving skills of the existing laser carving machines can satisfy the fine processing of some corresponding numbers, words, pictures and other information of many kinds of ceramics, making them highly artistic and fashionable.

For some trademarks, batch numbers, dates, or pictures and numbers with special needs, the laser symbol equipment of ceramic laser marking machine can achieve extremely delicate symbol function, giving ceramic products different fashion charm. At the same time, the symbol function is long, wear-resistant, non-fading, clear and textured, not only will not affect the original quality of ceramic products, but also further improve the value of ceramic products, so that customers can be more willing to bear.

At present, with the rapid development of laser technology, the use of laser in the field of ceramic technology is also becoming more and more in-depth, such as the current metal laser marking machine and optical fiber laser marking machine, which provide more possibilities for the current ceramic processing and make the current ceramic products more refined and beautiful.

If the fiber laser cutting machine has been used for a long time, it will be found that the cutting speed is becoming slower and slower, and the cutting quality is getting worse and worse, which seriously affects the work efficiency and the product quality, which is completely inconsistent with the original intention of users to purchase laser cutting equipment. Although it is a very normal situation, what causes the slow cutting speed? If the fiber laser cutting machine is used for a long time, the power attenuation is inevitable. What we need to do is to delay the power attenuation, and even ensure the normal operation of the equipment and product quality after the power attenuation.

The entire optical path system of the fiber laser is divided into the external optical path system and the internal optical path system. The internal optical path system is sealed without user maintenance. What the user needs to do is the maintenance of the external optical path. After understanding the reasons for the slow cutting speed and poor cutting quality of the fiber laser cutting machine, we should strengthen the maintenance and routine maintenance of the laser cutting equipment to ensure the work efficiency, product quality and economic benefits.

Pay attention to the impact of environmental factors. The bad environment will also cause the power attenuation of the fiber laser cutting machine if the lens is polluted. Therefore, dust, smoke, etc. should be avoided at the processing site. The auxiliary gas used shall ensure the quality of compressed gas as much as possible, and the water of cold water facilities shall be protected from pollution. Since we know that the slower cutting speed and the worse cutting quality of the fiber laser cutting machine are related to the power attenuation of the fiber laser, it is necessary for users to pay attention to the use and normal maintenance in order to increase the service life of the fiber laser.

The cutting quality is not ideal. When the cutting quality of the fiber laser cutter is not ideal, it is recommended to carry out general inspection first. The inspection contents and sequence are as follows:

1. The actual cutting height is recommended to be between 0.8 and 1.2 mm. If the actual cutting height is not accurate, it needs to be calibrated;

2. Cut the nozzle, check whether the model and size of the cutting nozzle are wrong, check whether the cutting nozzle is damaged and whether the roundness is normal;

3. Optical center, it is recommended to use the cutting nozzle with diameter of 1.0 to check the optical center, and the focus is between – 1 and 1, so that the light spot is small and easy to observe;

4. Protect the lens, check whether the lens is clean and free of water, oil and slag. Sometimes the protective lens will be fogged due to weather or paving gas;

5. Focus check to see if the focus is set correctly.

If there are no problems in the five items, modify the parameters according to the phenomenon. In addition to the above points, the cutting accuracy of different materials is also slightly different. Even for the same material, if the composition of the material is different, the cutting accuracy will also be different. Therefore, the workpiece material also has a certain impact on the laser cutting accuracy.

What you buy is the price. But in most cases, people care not only about the price, but also about the cost performance of the product. This is also true of the fiber laser cutting machine. Because the price of the product is very high, many people feel very expensive when they hear the price, or how the price difference between manufacturers is so much. Let’s analyze it in detail.

1. There are many manufacturers of optical fiber laser cutting machines. The competition is naturally fierce, and customers will not only look at one. The competition is not only price competition, but also quality competition. Therefore, the products produced in the laser cutting machine industry intensive area are of high quality and low price.

2. There are many manufacturers of optical fiber laser cutting machines, and the specialized level of various accessories and assemblies is high. Some manufacturers only produce laser cutting machine power supply, and some manufacturers only produce the main shaft of cutting machine, etc. This is the so-called technical specialization. These specialized companies are the guarantee of the quality of optical fiber laser cutting machine manufacturers.

3. It is a fact that there are many manufacturers of fiber laser cutting machines. Large manufacturers have developed earlier, have complete after-sales service guarantee, and a large number of machines are in operation, so the quality is relatively reliable.

4. Customers are looking for cost-effectiveness. With the same configuration of the same products, the costs of large manufacturers are naturally high, including management costs, plant costs, etc., while the costs of small manufacturers are extremely low. And because of the division of labor and cooperation of China’s socialized mass production, the professional level of its products is not necessarily lower than that of large manufacturers. However, in terms of product quality and after-sales service, the products and after-sales service of large manufacturers are still better than those of small manufacturers. Therefore, if funds allow, it is recommended to consider the products of large manufacturers.

5. Brand effect. It is easy to understand that some laser cutting machine enterprises that have done well or done well have gained good reputation and gradually formed a brand effect through long-term accumulation. Such products are generally at a high price. For example, we are familiar with air conditioners, Gree, Hisense and Haier, and the prices vary greatly.

As one of the core accessories of the fiber laser cutting machine, the daily maintenance is crucial to ensure the processing quality and prolong the service life of the equipment. Its importance is self-evident. We need to make a more detailed maintenance plan for it, according to the daily, weekly, monthly and its operation time.

1、 Daily pre-start maintenance of laser cutting machine:

1) Check the oil level in the laser vacuum pump. If it is not enough, add it.

2) Inspection of laser working gas and cutting gas: check the cylinder of laser working gas.

3) Check the temperature of cooling water, and the water temperature required by the selected laser is the best.

4) Check whether there is leakage in the oil, water and gas circuits of the laser, and whether there is leakage in the pneumatic components and pipe joints of the vacuum pump and resonator.

5) Check that the cooling water pressure is kept between 3.5 and 5 Bar.

2、 Weekly maintenance of laser cutting machine laser:

1) Check the filter of the water cooler for impurities.

2) Check whether there is oil and water in the gas mixing unit of the laser, and if there is any, clean it in time; Check the laser gas drying filter. If more than 1/4 of the color turns red or white,

It needs to be replaced. Its normal color is blue.

3) Check the cooling water circuit of the laser for impurities.

4) Check the oil level of roots pump. The oil level in the gear box of Roots pump can be seen through the oil window on the end face of the gear box. When the pump is turned off and cold, the oil level should be at the middle of the glass

+Between 5mm and 0mm, add HTCL2100 oil if necessary.

5) Check the oil level of vacuum pump and Luozi pump. If it is not enough, add it.

6) Check the condensate water level in the compressed air separator (located in the air supply unit). Check the vacuum pump oil level. When the pump is in the cold state, the oil level should be between+5mm and 0mm at the middle line of the oil window, and then refuel if necessary.

The focus position adjustment is an important factor affecting the cutting quality of the fiber laser cutting machine. Since the laser power density has a great impact on the cutting speed, the selection of lens focal length is also an important issue. The size of the spot after the laser beam is focused is proportional to the focal length of the lens. After the laser beam is focused by a short focal length lens, the size of the spot is very small, and the power density at the focal point is very high, which is very beneficial to the material cutting; However, its disadvantage is that the focal depth is very short and the adjustment allowance is small, which is generally applicable to high-speed cutting of thin materials. Because the long focal length lens has this relatively wide focal depth, as long as it has enough power density, it is suitable for cutting thick workpiece.

The relative position of the focus and the workpiece surface is particularly important to ensure the cutting quality after determining the lens of which focal length to use. Due to the high power density at the focus, in most cases, the focus position is just on the surface of the workpiece or slightly below the surface when cutting. Therefore, it is an important condition to obtain stable cutting quality to ensure that the relative position of the focus and the workpiece is constant during the whole cutting process. Sometimes the lens is heated due to poor cooling during operation, resulting in changes in focal length, which requires us to adjust the focus position in time.

When the focus is in the right position, the cutting seam is small and the efficiency is high. The cutting speed of the fiber laser cutting machine can obtain good cutting results.

In most applications, the beam focus should be adjusted to just below the nozzle, and the distance between the nozzle of the fiber laser cutting machine and the workpiece surface is generally 1. About 5mm.