SAN Fiber Laser Cutting Machine

core

core advantages

news

news center

Nov 04,
2024
Comparison of CO2, YAG and fiber laser cutting machines!

I believe that after reading this article, you will have a general understanding of the cutting materials, cutting thickness, watts, and corresponding industries of the laser cutter, and you will not make blind choices when purchasing.


 

Let's first introduce the principle of the fiber laser cutting machine

 

Laser cutting is to vaporize the plate instantly at high temperature, and the auxiliary gas blows away the vaporized plate slag at the same time to separate it, and complete the cutting process of the plate with the mechanical movement of the machine.

 

The laser emitted by the laser can get a 0.1-0.3 mm light spot after focusing. This light spot has a very high energy density, reaching one million watts per square centimeter. Such energy density can make many materials be heated, melted, and even evaporated in an instant.

 

Assuming that the laser power is 1000W, the diameter of the light spot after focusing is 0.1 mm, and the energy accumulated per square centimeter is

 

E= 1000W/π(0.01/2)2 =12,700 kilowatts/cm2

 

Processing characteristics of fiber laser cutting machine

 

1. Non-contact processing, small heat-affected zone on processed materials, flexible processing

2. Narrow cutting gap

3. Fast cutting speed and good precision

4. Five mechanical stresses, no burrs

5. No tool loss and contact energy loss, no need to replace tools

6. The beam runs without inertia, and high-speed cutting can be implemented

7. Multi-station operation can be realized, and automation can be easily realized

8. Low noise

9. Good laser cutting surface quality and smooth cutting edges

 

Classification of laser cutting machines

 

Laser classification: CO2, YAG, optical fiber

 

Movement mode: two-dimensional platform, three-dimensional space, pipe

 

YAG solid-state cutting machine: the leading product of the cutting machine in the early stage, with few real faces at present. It generates laser through xenon lamp tubes, and can cut high-reflective materials such as copper and aluminum.

 

Advantages: high laser intensity, universal for cutting plates, low price;

 

Disadvantages: high power consumption, high consumables, low beam quality, average cutting effect, and regular dimming and maintenance are required.

 

CO2 laser cutting machine: can achieve thick plate cutting, carbon dioxide laser, has unique advantages for thick plate cutting.

 

Advantages: mature earlier than optical fiber, can effectively complete the perfect cutting of thick plates, can cut stainless steel with a thickness of more than 20 and carbon steel with a thickness of more than 10, mostly used for cutting hulls, etc.;

 

Disadvantages: high price and high cost of use



Comparison of fiber laser, YAG solid-state laser, and CO2 laser

Fiber laser

 

The electro-optical conversion efficiency is 30%, the output power is 500-35000W, the semiconductor pump life is greater than 200000, no maintenance is required, it is suitable for flexible processing, and has good stability. The steel absorption rate is 35%, and the aluminum absorption rate is 7%. There is only one part that needs to be replaced, that is, if the high-brightness broadband single-core semiconductor laser exceeds 200,000 hours of pumping time, if one of the semiconductors is damaged, it only costs 300-500 US dollars to replace it, because each semiconductor pump is independent of each other.

 

YAG solid-state laser

 

The electro-optical conversion efficiency is 3%, the output power is 500W/600W, the life of the semiconductor pump is 1000, and it needs frequent maintenance. The flexible addition is far behind the fiber laser, and the stability is poor. Its steel absorption rate and aluminum absorption rate are 35% and 7%, and its lamp can work continuously for less than one thousand hours. In other words, it needs to be replaced at any time if it exceeds one thousand hours.

 

CO2 laser

 

The photoelectric conversion efficiency is 10%, the output power is 2KW/4KW, the semiconductor pump life is NA, maintenance is required, it is not suitable for flexible processing, and the stability is OK. Among them, the absorption rate of steel is 12%, and the absorption rate of aluminum is 2%. The replenishment of working gas requires timely replacement of parts.

 

At this point, do you have a general understanding of these three types of laser cutters? Next, I believe that you will be more comfortable choosing according to your needs. In addition, choosing a good laser cutter is the key. Choosing a good manufacturer will not only help you save a lot of money on maintenance, but SAN LASER will also teach you cutting technology step by step.


Nov 01,
2024
Why choose an air-cooled fiber laser welding machine?

Advantage 1: Cost-effectiveness of air-cooled fiber laser welding


 

1. Reduced overall operating costs: Although air-cooled laser welding machines may be more expensive initially, they can save a lot of money in the long run. By eliminating the need for a water cooling system, you can save the cost of purchasing and maintaining chillers and water circulation equipment. This means a more streamlined system and lower maintenance costs, especially in extremely cold areas, where water-cooled machines would otherwise require antifreeze and additional water heating systems.

 

2. Simplified installation and mobility: Air-cooled systems are compact and lightweight because they do not rely on heavy water tanks or circulation systems. This makes them easier to transport and install. This is especially useful in mobile applications, where the machine may need to be moved frequently during operation.

 

3. Improved performance in cold climates: In cold environments, water-cooled systems require additional settings, such as heating mechanisms or antifreeze, to prevent the water from freezing. On the other hand, air-cooled systems completely avoid this problem because they do not rely on liquid cooling. This reduces operational complexity and the additional costs associated with keeping water-based systems running smoothly in sub-zero temperatures.


Advantage 2: Compact and portable design



Space in the shop is at a premium. I get it. It’s not easy to fit all the equipment you need in without making your shop feel like a crowded airport. The good news? Air-cooled fiber laser welders are compact and lightweight, weighing only 26 to 48 kg. They’re small enough to squeeze into the tightest spaces, and they’re easy to move around thanks to their wheels.

 

Advantage 3: Low maintenance and long service life


No one wants to waste time dealing with maintenance issues, and water systems are often a headache—prone to leaks, failures, and freezing in the colder months. With an air-cooled fiber laser welder, you don’t have to worry about that. No water, no problem.

 

Fiber lasers are known for their durability, typically lasting up to 100,000 hours, while CO2 lasers last about 30,000 hours. This extra-long service life ensures years of reliable performance with minimal maintenance interruptions.


The long service life of a fiber laser also means a better return on investment. Fewer repairs and less downtime means lower costs and greater operational efficiency. By investing in an air-cooled fiber laser welding machine, you can get a durable, cost-effective solution for your business.

 

Benefit 4: Improve welding precision and quality


Welding precision is critical, and fiber lasers excel in this regard. Air cooling technology ensures that the machine continues to run without overheating, providing perfect, high-quality welds every time. The system is especially useful when working with delicate materials or thin metals, as precise control is essential to avoid deformation and ensure smooth, clean welds.

 

One of the main advantages of fiber lasers is the ability to produce consistent, repeatable welds. Fine control over laser parameters ensures uniformity, which is critical in high-volume production environments. This reduces the need for touch-ups or rework, ultimately improving overall production efficiency and reducing operating costs. The air cooling system further enhances this by maintaining stable performance without complex maintenance.

 

Incorporating air-cooled fiber lasers into your operation means you will get better precision, higher efficiency, and consistent quality in every weld, making it the first choice for industries that require reliability and high performance.

 

Benefit 5: Environmental protection and energy saving


This is exactly where I want to be environmentally friendly - because who doesn't like to save the earth and save money at the same time? Air-cooled fiber laser welding machines consume less energy overall than traditional methods. This not only means lower operating costs, but also a lower carbon footprint.


Related product links

Fiber Laser Welding Machine


Nov 01,
2024
Comparison of common metal cutting processes!

In recent years, my country's manufacturing industry has developed rapidly. As a core process of the manufacturing industry, the efficiency and quality of metal processing will greatly affect the development of the manufacturing industry. Metal processing is to process the metal base material into a whole plate, and then cut the whole plate according to the type of parts. The common metal cutting methods at present are: flame cutting, laser cutting, wire cutting, shearing machine processing, plasma cutting and water cutting. This article mainly introduces the differences between the common cutting processes at present, for your reference only.



Flame cutting: At present, flame cutting is mainly a technology for thick plate processing. Flame cutting has great advantages for metal plates above 50mm, but it has its shortcomings in thin plate cutting. The accuracy of flame cutting is not high. The heat effect of thin plate cutting is very large, the deformation is obvious, and even direct melting is required. If you want to use flame to cut a very ideal workpiece, this has high requirements for the operator's skills.

 

Laser cutting: Laser cutting equipment was initially aimed at the thin plate field. The cutting speed of thin plates within 5mm is fast and the precision is high. Now high-power laser cutting equipment can process plates within 50mm, and the cutting effect is better than flame cutting. At present, the speed of laser cutting is faster than other similar cutting processes, and the accuracy can be controlled within ±0.05mm, but the equipment cost investment is high, and the cutting effect in the thick plate field is not ideal.

 

Wire cutting: Wire cutting is also called electric spark wire cutting. It is developed on the basis of electric spark perforation and forming processing. Wire cutting can cut regardless of material thickness and hardness, and can also process complex graphics, and the accuracy is comparable to laser cutting. Wire cutting also has certain shortcomings. It can only process conductive materials, the cutting efficiency is slow, and it can only process a few millimeters per minute. The processing can only be vertical, not horizontal, and the overall processing method is limited.

 

Shearing machine: The shearing machine uses the moving upper blade and the fixed lower blade, and adopts a reasonable blade gap to apply shear force to metal plates of various thicknesses, so that the plates are broken and separated according to the required size. The processing accuracy of the shearing machine is moderate, which is very advantageous compared to flame cutting, and the processing efficiency is also outstanding. However, the shearing machine can only process in a straight line, and cannot do arc processing and complex graphics processing.

 

Plasma cutting machine: Plasma cutting is a processing method that uses the heat of a high-temperature plasma arc to partially or partially melt the metal at the cut of the workpiece, and uses the momentum of high-speed plasma to remove the molten metal to form a cut. The plasma cutting machine has a large cutting thickness, a small cutting deformation, and does not require preheating. The equipment cost is relatively low compared to the laser cutting machine. However, the precision error of the plasma cutting machine is large, the light pollution is obvious during the cutting process, and the noise and dust pollution cannot be avoided.

 

Ultra-high-pressure water cutting: Ultra-high-pressure water cutting is also called water knife and water jet. It is a high-energy water flow generated by ordinary water after multi-stage supercharging, and then through an extremely fine ruby nozzle, it is sprayed and cut at a speed of nearly one kilometer per second. This cutting method is called ultra-high-pressure water cutting. Water cutting is highly versatile and can cut almost all materials. There is no thermal impact on cutting, and the material cut surface is flat and deformed. However, water cutting has a high cost of use, requires a lot of water and sand for cutting, and seriously pollutes the environment. Because it carries water during cutting, it is easy to rust when processing carbon steel, and it is troublesome to maintain later.



Oct 31,
2024
The significance of using automatic welding robots!

An important trend in the field of automation is to increase the use of robots, thereby improving production efficiency and reducing production costs. The application of fully automatic welding robots in my country is mainly concentrated in several major industries such as automobiles, motorcycles, engineering machinery, and railway locomotives. The following is an introduction to the development history and prospects of fully automatic welding robots in my country.


laser welding machine


The reason why fully automatic welding robots can occupy more than 40% of the total number of industrial robots is related to the special industry of welding. Welding, as an industrial "tailor", is a very important processing method in industrial production. At the same time, due to the presence of welding smoke, arc light, and metal splashes, the welding working environment is very bad. The quality of welding has a decisive influence on product quality. In summary, the use of fully automatic welding robots has the following main significance:

 

(1) Stabilize and improve welding quality and ensure its uniformity. Welding parameters such as welding current, voltage, welding speed, and welding dry extension length play a decisive role in welding results. When using robot welding, the welding parameters for each weld are constant, and the quality of the weld is less affected by human factors, which reduces the requirements for workers' operating skills, so the welding quality is stable. In manual welding, welding speed, dry extension length, etc. are all variable, so it is difficult to achieve uniform quality.


(2) Improved working conditions for workers. With robot welding, workers are only used to load and unload workpieces, away from welding arcs, smoke and spatter. For spot welding, workers no longer need to carry bulky manual welding tongs, freeing them from high-intensity physical labor.


(3) Improved labor productivity. Robots do not get tired and can produce continuously for 24 hours a day. In addition, with the application of high-speed and efficient welding technology, the efficiency of robot welding is more significantly improved.


(4) The product cycle is clear and it is easy to control product output. The production rhythm of robots is fixed, so the production plan is very clear.


(5) It can shorten the cycle of product modification and replacement and reduce the corresponding


Related product links

Fiber Laser Welding Machine


Oct 31,
2024
Laser cutting machine operation process description!

Preparation before using the laser cutting machine

1. Before using, check whether the power supply voltage is consistent with the rated voltage of the machine to avoid unnecessary damage.

2. Check whether there are foreign objects and residues on the machine table to avoid affecting normal cutting operations.

3. Check whether the cooling water pressure and water temperature of the chiller are normal.

4. Check whether the cutting auxiliary gas pressure is normal


Fiber laser cutting machine


Steps for using the laser cutting machine

1. Fix the material to be cut on the working table of the laser cutting machine.

2. Adjust the equipment parameters accordingly according to the material and thickness of the metal sheet.

3. Select the appropriate lens and nozzle, and check them before turning on the machine to check their integrity and cleanliness.

4. Adjust the cutting head to the appropriate focus position according to the cutting thickness and cutting requirements.

5. Select the appropriate cutting gas and check whether the gas ejection state is good.

6. Try to cut the material. After the material is cut, check the verticality, roughness and burr hanging slag of the cut surface.

7. Analyze the cut surface situation and adjust the cutting parameters accordingly until the sample cut surface process meets the standard.

8. Program the workpiece drawing and layout the whole board cutting, and import it into the cutting software system.

9. Adjust the cutting head and focal distance, prepare auxiliary gas, and start cutting.

10. Check the process of the sample. If there is any problem, adjust the parameters in time until the cutting meets the process requirements.

 

Precautions for laser cutting machine

1. Do not adjust the position of the cutting head or cutting material when the equipment is cutting to avoid laser burns.

2. During the cutting process, the operator needs to observe the cutting process at all times. If there is an emergency, please press the emergency stop button immediately.

3. A fire extinguisher that can be easily taken near the equipment should be placed to prevent open flames during equipment cutting.

4. The operator needs to know the equipment switch and turn off the switch in time in case of emergency.


Explore more…