A laser cutting machine is a computer-controlled device that uses a high-powered laser beam to cut through materials such as metal, wood, plastic, and fabric. The laser beam is directed by mirrors or lenses to the material being cut and can accurately cut intricate designs with high precision and speed. Laser cutting machines are often used in industrial manufacturing, but they are also becoming popular among hobbyists and small businesses due to their versatility and ease of use.
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Advantage 1: High-precision
Laser cutting uses a high-power density laser beam to scan the material surface, heating the material to thousands to tens of thousands of degrees Celsius in a very short time, melting or vaporizing the material, and then using high-pressure gas to melt or vaporize the material. The chemical substance is blown away from the cutting seam to achieve the purpose of cutting the material. Laser cutting uses an invisible beam instead of a traditional mechanical knife. The mechanical part of the laser head has no contact with the work and will not cause scratches to the work surface during work. In addition, due to the small diameter of the beam,.the contact surface with the materials is smaller, so the cutting accuracy is higher. The working principle of plasma cutting machine is to use the heat of high-temperature plasma arc to partially melt the metal at the incision of the workpiece, and use the momentum of high-speed plasma to remove the molten metal to form an incision. Its cutting slit is larger, so its accuracy is smaller than that of laser cutting machines. The water jet cutting machine uses a supercharger to pressurize water, spray it from a small nozzle, and convert the pressure energy into kinetic energy. It uses the kinetic energy of this high-speed jet to impact and destroy the workpiece to achieve the purpose of cutting and forming. The diameter of the water column is larger than the diameter of the laser beam, which causes the water cutting machine to have a large cutting slit, so the cutting accuracy is smaller than that of the laser cutting machine.
Advantage 2: Fast cutting speed
By virtue of the extremely high energy of the laser source, the laser cutting machine can release a large amount of energy to cut the metal in a very short time,which empowers the lightning cutting speed. Especially when cutting thin metal sheets, laser cutting machines can cut faster than other machines such as water jets and plasma cutting machines.
Advantage3:Less waste and low maintenance costs
Compared with water jet and plasma cutting, laser cutting does not require the use of other media other than laser source for cutting. This greatly reduces the cost of using the laser cutting machine. Users do not need to frequently replace and adjust the parameters of various media, which also saves a lot of operating time.
Advantage 4: High flexibility
Laser cutting machines can not only be used to process various graphics on flat sheets, but can also be used to cut pipes, including various special-shaped pipes such as round pipes, square pipes, rectangular pipes, oval pipes, hexagonal pipes, C-shaped steel, angle steel.and H steel . It can also be used to cut 3D materials: The picture below shows the 3D five-axis laser cutting machine and cutting samples developed by GWEIKE.
Advantage 5: Batch Processing
Due to the fast cutting speed, high accuracy, and the ability to operate through a computer system, laser cutting machines are often used in batch processing. In addition, in order to improve the processing efficiency, laser cutting machine manufacturers have developed a series of accessories, such as exchange platforms, rolling devices, automatic loading platforms, etc. These equipment can save your time and labor required for material change in batch processing. These devices also greatly reduce labor costs in production, which is unachievable by other processing methods.
Advantage 6: Fewer material restrictions
Laser cutting machines can be divided into fiber laser cutting machines and CO2 laser cutting machines. Fiber laser cutting machines can be used to cut metal materials, and CO2 laser cutting machines are generally used to cut metal and non-metal materials. Plasma cutters, on the other hand, can only be used to cut metal. Water jet need machine to bring materials into contact with water.
Advantage 7: Smooth cutting surface and no further processing
Materials processed by laser cutting machines have smooth cutting surfaces and can be used directly without secondary processing, which save more labor cost and the time required to complete the workpiece. The surface of the material cut by the plasma cutting machine has slag, which requires secondary treatment.
Advantage 8: Less pollution and less noise
Compared with water jet and plasma cutting machines, laser cutting machines make less noise and emit less exhaust gas when processing parts. No wastewater will be produced to pollute the environment, and there is no need to worry about how to treat the wastewater or increase the cost of treating the wastewater.
How a Laser Cutter Works
In laser cutting, a part is placed onto a bed, where material is then etched or cut from a sheet using a laser. Here is a simple overview of the laser cutting process:
1.Power is adjusted based on the material being cut and the thickness of the sheet. A typical laser beam has a diameter of 0.1 - 0.3mm (power of 2-3kW.)
2.A CAD drawing is converted into a series of commands that can be interpreted by the laser cutting machine. This is usually done by the machine operator based on its standard working procedure.
3.A sheet of material is then cut to size, placed on the machine's bed workpiece is clamped onto the bench, making sure that the orientation is straight (not slanted).
4.The material is now cut or scored by the laser. The light is emitted from a resonator; this is an airtight glass tube composed of two facing mirrors and filled with diode activated gases. It’s then emitted from the cutting head, where light from the resonator is focussed onto a curved lens, where it is focused into a single beam).
5.Multiple parts can be cut from the same sheet and will run on the same program.
Types Of Laser Cutting Machine
1. CO2 Laser
CO2 laser devices are a form of the gas laser cutter. A CO2 laser produces light beams by passing energy through a gas mixture-filled tube. There may be other gases, like nitrogen and helium. It can be used on both metal and non-metal surfaces. However, it works best with non-metallic materials.
Plastic and wood are among the materials that these machines can cut and engrave. For industrial machinery, the greatest power of CO2 lasers can reach several kilowatts. CO2 lasers for machining typically have a power range of 25 to 100 watts with a wavelength of 10.6 micrometers.
2. Fiber Laser
The laser in a fiber laser cutter is made of optical fiber. It functions by channeling and amplifying the laser beam through fiberglass diodes. This makes them very powerful and saves a lot of energy.
A fiber laser beam absorbs the materials being cut. As a result, there isn't any reflection. Thus, it is the best laser cutter when it comes to reflective materials.
With the same amount of average power, they can achieve intensities 100 times greater than CO2 lasers. Their wavelength is 1.064 micrometers, which results in a very narrow focus diameter.
3. Crystal Laser
Crystal laser cutters come in two types - neodymium-doped yttrium aluminum garnet and neodymium-doped yttrium ortho-vanadate. They produce a strong beam capable of cutting through thicker and tougher materials than conventional laser cutters.
They are utilized in a variety of sectors for a variety of purposes, including manufacturing, military, medical, and more.
4. Direct Diode Laser
Direct diode lasers are a type of solid-state laser. It uses a doped glass rod. Their power is usually less compared to other types of laser, around 10W.
How To Choose The Right Laser Cutter?
1. Functionality
The most important factor to consider before making a purchase is to decide what the laser cutter will be used for. A laser cutter mostly has two purposes: cutting and engraving.
The laser cutting machine may be used to cut a variety of materials. Because the materials will have varied requirements, it's better to know how you'll use the machine first, so you can make an informed selection.
2. Bed Size
The amount of work you will do at a time depends on the laser cutter's bed size. The larger the size, the more work your machine can accomplish.
3. Optics Quality
The performance and quality of the laser machine's work are greatly determined by the optics. No, it is not the power consumption that determines how well a machine operates.
4. Power Scale
Laser cutters come with a variety of power levels. Some laser devices have low penetrative powers, while others use the entire wattage of power available.
5. Convenience
If you are a novice laser cutter, or even an experienced one, a simple user interface never hurts anybody.
What Are The Applications Of Laser Cutting Machine
Kitchenware industry
Traditional processing methods in the kitchenware manufacturing industry face problems such as low work efficiency, large mold consumption, and high use costs. The laser cutting machine has fast cutting speed and high precision, which improves processing efficiency, and can realize customized and personalized product development, solve the problems of kitchenware manufacturers, and have won the recognition of kitchenware manufacturers.
Automobile manufacturing industry
There are also many precision parts and materials in automobiles, such as automobile brake pads. In order to improve the safety of automobiles, it is necessary to ensure cutting accuracy. Traditional manual precision is difficult to achieve. Secondly, the efficiency is low. Laser cutting can be used for faster batch processing and high accuracy., High efficiency, no burrs, one-time molding and other advantages, these are the reasons why laser cutting machines are widely used in the automotive industry.
Fitness equipment industry
The diversity of fitness equipment also puts high demands on processing, and multiple specifications and shapes make traditional processing appear complicated and inefficient. Laser cutting has high flexibility, and can be customized for flexible processing of different pipes and plates. After processing, the finished product is smooth and burr-free, no secondary processing is required, and the quality and efficiency are greatly improved compared to traditional processes.
Advertising metal word industry
Advertising traditional processing equipment generally uses advertising fonts and other materials. Due to the processing accuracy and cutting surface are not ideal, the probability of rework is quite large. High-precision laser cutting technology eliminates the need for secondary rework, which greatly improves work efficiency and saves corporate costs.
Sheet metal processing industry
With the rapid development of sheet metal processing technology, traditional sheet metal cutting equipment cannot meet the current process and cutting form requirements. Laser cutting has gradually replaced traditional equipment with advantages such as high flexibility and fast cutting speed. The widespread application in sheet metal processing is an inevitable trend.
Chassis cabinet industry
The distribution cabinets, filing cabinets, etc. that we see in our lives are products of standardized production of thin plates, which have high requirements for efficiency. The four or six stations of the laser cutting machine are relatively suitable and efficient , For specific plates can also achieve double-layer cutting.
Shipbuilding industry
In the field of shipbuilding, laser-cut marine steel plates have good cutting seam quality, good verticality of the cut surface, no slag hanging, thin oxide layer, smooth surface, no need for secondary processing, can be directly welded, and have small thermal deformation and curve cutting High precision, reducing the number of man-hours, and achieving obstacle-free cutting of high-strength ship plates.
Maintenance Laser Cutting Machine
1.The replacement and circulating water tank cleaning
Before the machine work must ensure the laser tube is full of circulating water, the water quality of circulating water and the water temperature directly affects the service life of laser tube.So be regular replacement of circulating water and the water tank cleaning.The best for once a week,the prospect of laser cutters for sale is very good.
2.Fan clean
Fan in the machine to use for a long period of time, can make the fan inside accumulate a lot of solid dust, let the fan make a big noise, in addition to flavor and is unfavorable to the exhaust.When appear insufficient suction fan smoke not free, is to clean the fan.
3.Lens cleaning
Machine some reflection lens and focus lens.After focusing laser is through the lens reflex, emitted from a laser.Lenses can easily touch dirt or other contaminants, cause loss or damage of lens of the laser.So every day to clean the lens.Clean at the same time should pay attention to
1. The lens should be wiped gently, do not damage the surface coating;2. The cleaning process to should take put down gently, prevent fall;3. The focus lens installation please be sure to keep the concave downward,the prospect of laser cutting machine for sale is very good.
4.Guide rail cleaning
Guide, straight axis, as one of the core parts of the equipment, it is the function of guidance and supporting role.In order to ensure the machine has high machining accuracy, to guide, linear has higher guidance precision and good running smoothness.Equipment in the process of running, because of the work piece in processing will produce a large number of corrosive dust and smoke, the smoke and dust deposit on the guide rail, straight axis surface, a large amount for a long time has a great influence on the equipment of machining accuracy, and in the guide rail straight axis surface erosion, shorten the service life of the equipment.
5.The fastening screw, coupling
Motor system in the work after a period of time, movement joint creates a loose screw, coupling, will influence the mechanical movement smoothness, so in the running of the machine should observe the driving part is there any sound or abnormal phenomenon, found that the problem has to be strong in a timely manner and maintain.At the same time, the machine should be for a period of time using tools solid screw one by one.First solid should be used in the device after a month or so.
6. light path check
Machine light path system is made up of mirror reflection, together with the focus lens focusing focus lens in the optical path was not found deviation problem, but the three mirrors is composed of mechanical part is fixed, the possibility of deviation is bigger, although usually does not happen, but suggest user before each work be sure to check the light path is normal,the prospect of laser cutter machine for sale is very good.
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FAQ
Q: What is the working principle of the laser cutting machine?
Q: What is the composition of the laser cutting machine?
Q: What are the application areas of laser cutting machines?
Q: Is the laser cutting machine safe to operate?
Q: Is the laser cutting machine difficult to operate?
Q: What do I need to know about laser cutting machine?
Q: What are the limitations of a laser cutter?
Q: How thick can a laser cutting machine cut?
Q: Do laser cutters need maintenance?
Q: Do laser cutters use a lot of electricity?
Q: How thick of wood can a laser cut?
Q: How thick of plywood can a laser cutter cut?
Q: Why is laser cutting so expensive?
Q: How much does a laser cutting machine cost per hour?
Q: Do laser cutters get hot?
Q: What gas is used in laser cutting?
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Q: How thick can a laser cutting machine cut?
Q: Will Laser Cutters Damage My Materials?
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