Tube laser cutting machine definition

Tube laser cutting machine is a machinery specialized in cutting steel and metal pipes. It is a very common equipment in metal processing industry and is mainly used for cutting various pipes.

Tube laser cutting machine classification

According to working methods, Tube laser cutting machine can be divided into two types: Continuous pipe laser cutting machine and portable pipe laser cutting machine.

Continuous tube laser cutters can be divided into three categories:

Digitally controlled Tube laser cutting machine, digitized Tube laser cutting machine and electro-pneumatic Tube laser cutting machine.

According to different structure of tube laser cutting, it can be divided into two types: desktop CNC (fixed) pipe laser cutting machine and portable CNC (mobile or handheld) pipe laser cutting machine.

According to different application fields, it can be divided into two types: metal processing CNC pipe laser cutting machine and CNC pipe laser cutting machine for non-metal processing.

Tube Laser cutting machine function

Variety of cutting

Laser tube cutter can cut various shapes of tubes, such as round, square, oval and so on. This makes the laser tube cutter have a wide range of applications in many fields, such as construction, petroleum, chemical, automotive, etc.

High Precision Cutting

Tube Laser cutting machines have high precision cutting abilities, capable of accurately cutting drill material with minimal errors. This is due to the principles of laser cutting, which relies on the instantaneous heating of materials by a dense energy laser beam, causing them to melt and vaporize, leading to cutting. This cutting method can achieve extremely smooth cutting surfaces.

High-speed cutting

Laser tube cutters have the ability to cut at high speeds, which can greatly improve productivity. This is because in the laser cutting process, the tube does not need to undergo tedious steps such as piercing and patching, but is cut by the relative motion of the high-speed moving tube and the laser beam.

Adapt to various materials 

The laser pipe cutting machine can adapt to cut various materials, such as carbon steel, stainless steel, aluminum alloy and so on. This allows the laser pipe cutter to be widely used for processing a variety of materials. 

Intelligent control system  

The laser tube cutting machine is equipped with an intelligent control system, which can realize automation and intelligent cutting. This not only improves productivity, but also reduces manual errors and improves product quality.

Environmental protection and energy saving

Laser tube cutter does not produce harmful substances during the cutting process, so it has the advantage of environmental protection and energy saving. In addition, laser pipe cutting machines have low energy consumption, which can reduce the production costs of enterprises.

Beveling and Arc Opening Functions of Laser Tube Cutting Machines

The traditional saw blade pipe cutting machine can only cut the inclined angle between 45 degrees and 90 degrees, when cutting, you need to manually push the head to the required angle, cutting accuracy is difficult to ensure. If the pipe is to be processed arc mouth, another machine is needed to process; laser pipe cutting machine can cut the pipe at any angle and arc mouth, cutting accuracy, cutting effect and cutting efficiency will be higher.

Etching of tubes by laser tube machines

Laser pipe cutting can easily etch various patterns on the pipe surface, making pipe processing easier. The laser pipe cutting machine not only realizes automated production, but also has strong processing capability, making multi-process steel pipe processing easier and easier.

laser tube cutter advantages

With the advantages of fast cutting speed, high precision and small heat-affected zone, the laser tube cutter is widely used in the processing of tubes in petroleum, chemical, electric power, aviation, shipping and other industries.

Performance parameters of tube laser cutting machine

Maximum output power

Different power levels are selected according to the materials being cut, generally between 200W and 400W. The specific needs depend on the power supply and load used.

In addition, we must also consider the issue of heat dissipation and whether to use a water circulation cooling system, etc.

You need to confirm the above issues before purchasing a suitable pipe laser cutting machine.

Machine dimensions

Usually, the larger the overall dimensions of the machine, the better, which is beneficial to the stability and ease of operation of the machine. However, you need to consider production efficiency required in actual production.

For example, you need to consider the size of the equipment if you need to cut the pipe into multiple pieces or produce small batches.

Of course, if you have special requirements for tube laser cutting specifications, you can discuss with the manufacturer to customize the appropriate model according to your needs.

Total Weight

This is mainly related to the accessories used, such as what kind of guide rails are used? What brand of bearings are used? What kind of board material is used?

As the pipe laser cutting machine has many advantages with affordable cost. It becomes more popular among industrial processing.

When purchasing a metal laser pipe cutting machine, you should not just care about the pipe laser cutting machine price, but should consider it comprehensively from its processing capabilities, processing range, etc.

Compared with traditional cutting technology, the laser pipe cutting machine has better processing quality, and the cut section of the processed pipe is smoother. The cut pipe can be directly used in the next process, which reduces the processing steps and saves costs.

Pipe laser cutting machine advantages:

High cutting accuracy and high dimensional accuracy. The cuts are smooth and clean, without burrs, and there is very little material loss.

The heat-affected zone of laser cutting is very small, with almost no thermal deformation and no oxidation, which can produce high-quality and more consistent parts, which is especially beneficial for subsequent automatic welding;

The cutting efficiency is high and mass production can be achieved. All operations of laser cutting can be unified into the same unit as a continuous operation process, greatly reducing logistics time.

The standard pipe length is 6 meters. Traditional processing methods require very cumbersome clamping, but laser processing can easily complete the clamping and positioning of several meters long pipes, which makes batch processing possible.

The laser cutting machine adopts digital system control, which is also one of the advantages of laser cutting machine for cutting pipes.

First of all, ensuring accuracy and flexibility, laser tube cutting technology can process any shape that has been programmed, and can complete cutting in any direction.

End users can control short-run or medium-run production without having to manufacture a large number of templates, which allows them to respond faster to customer needs and provide the possibility for personalized customization.

Pipe laser cutting machine structure

The main body structure include the machine tool part of the laser cutting machine, the mechanical part that realizes x, y, z-axis movement and the cutting work platform.

It is used to install the workpiece to be cut and can move correctly according to the control program. It is usually driven by a servo motor.

laser generator: it is Device that generates laser light source.

Laser cutting requires high quality beams, so not all lasers can cut. Except for a few cases where YAG solid-state lasers are used, most of them use CO2 gas lasers with high electro-optical conversion efficiency and high power.

external optical path. Folding mirrors for guiding the laser in the desired direction.

In order not to fail the beam path, all reflex mirrors should have a protective cover that protects the lens from contamination by means of clean, positively pressurized protective gas.

A well-performing lens focuses a divergence-free beam on an infinitesimal spot. Typically 5.0“ focal length lenses are used. 7.5” lenses are only used for >12mm thick material.

CNC system: control the machine to realize x, y, z-axis movement, and at the same time control the laser output power.

Voltage stabilized power supply: connected to laser, CNC machine tools and power supply systems. Mainly play a role in preventing interference with the external power grid.

Cutting head: mainly includes cavity, focusing lens holder, focusing mirror, capacitance sensor and auxiliary gas nozzle.

The cutting head drive unit drives the cutting head along the z-axis according to the program and consists of servo motors, screws, gears and other transmission components.

Table: for controlling the overall working process of the cutting device

Chillers: for cooling laser generators. A laser is a device that uses electrical energy to convert light energy. The conversion rate of a CO2 gas laser is typically 20%, with the balance of the energy converted to heat.

The cooling water takes away the excess heat and maintains the normal operation of the laser generator. The chiller also cools the machine’s external optical path mirrors and focus mirrors to ensure stable beam transmission quality and effectively prevent the lens from being deformed or ruptured due to high temperature.

Gas Cylinders:Including the laser cutting machine’s working medium gas cylinders and auxiliary gas cylinders, used to replenish the laser vibration of industrial gases and auxiliary gases supplied to the cutting head.

Compressors, storage tanks: supply and storage of compressed air.

Air Cooling Dryer, Filter: Provide clean and dry air for the laser generator and beam channel to maintain the normal operation of the channel and mirrors.

Extraction Dust Collector: Extract the smoke and dust generated during processing, filter and treat them, so that the discharged exhaust gas meets the environmental protection standards.

Slag remover: Removes residual trimmings and waste materials generated during processing.

laser cutting machine working principle

The laser pipe cutter utilizes a high energy laser beam to cut the pipe. The laser beam is focused into a very small spot through the optical system, which generates high temperature in an instant, causing the pipe to melt or vaporize rapidly, while the high-speed airflow blows away the melted or vaporized material, thus realizing the cutting process.

Laser tube cutter application

• Petrochemical industry: laser pipe cutting machine can be used to cut pipes of various materials and specifications, such as steel pipe, copper pipe, aluminum pipe, etc., to meet the needs of petrochemical equipment manufacturing and maintenance.
• Electric power industry: In the manufacturing and installation of electric power equipment, tube laser cutting machine can be used to cut cable protection pipe, busbar pipe to improve production efficiency and quality.
• Aerospace industry: The high precision of laser tube cutter makes it ideal for tube processing in the aerospace industry such as cutting tubes in complex structures for airplanes, rockets, etc.
• Shipbuilding industry: laser pipe cutter can be used for pipe cutting in the shipbuilding process to improve the efficiency and quality of shipbuilding.

Tube laser cutting machine advantages

• HIGH PRECISION: The laser pipe cutting machine adopts advanced control system and optical system, which can realize high-precision cutting and meet the demand of high-precision processing.
• High efficiency: laser cutting speed, high processing efficiency, can significantly improve production efficiency.
• Energy saving and environmental protection: the laser cutting process produces less waste and has less impact on the environment, meeting the requirements of green manufacturing.
• Wide applicability: the laser pipe cutting machine can be applied to a variety of materials and specifications of the pipe cutting, with strong versatility.

How to choose tube laser cutting machine

Tube laser cutting machine cutting accuracy

Cutting accuracy is one of the important factors to measure the performance of laser tube cutter. You should choose the equipment with sufficient cutting precision according to their own production needs. Generally speaking, the higher the cutting precision of the equipment, its price will be correspondingly higher.

Tube laser cutting machine cutting speed

Cutting speed directly affects the cutting productivity. You should choose the pipe laser cutter that meet the cutting speed of the production needs. It should be noted that the cutting speed is not the faster the better, too fast cutting speed may affect the cutting quality.

Tube laser cutting machine stability

Tube laser cutting machine stability is the key to ensure production continuity. You should choose equipment with good stability to reduce the failure rate, reduce maintenance costs and ensure smooth production.

Applicable pipe range

Different models of laser pipe cutting machine is suitable for different pipe materials. You should choose the suitable laser cutting equipment  for the required pipe according to their own production needs.

Tube laser cutting machine brands

In the market, there are many well-known brands of laser pipe cutting machines. When choosing a laser tube cutting machine, you can consider buying from the well-known brands. These brands usually have a complete after-sales service system and can provide users with timely technical support and repair and maintenance services.

Tube laser cutting machine price

The price of laser pipe cutting machines varies depending on factors such as brand, model, configuration, etc.

When choosing a laser pipe cutting machine, you should consider the price based on your own budget and actual needs.

Higher-priced equipment generally has higher performance and quality, but factors such as return on investment and equipment lifespan also need to be considered.

When choosing a laser pipe cutting machine, you should consider your product application fields and choose suitable type.

Pipe laser cutting machines using precautions

Operator safety for tube laser cutting machine

Tube laser cutting machines will produce high-temperature and high-energy laser beams during use. Operators must wear protective glasses, gloves and other personal protective equipment to avoid direct exposure of the laser beam to sensitive parts such as eyes.

Processing material selection for tube laser cutting machine

Pipe laser cutting machines have different processing effects and application ranges for different materials.

Operators should understand the properties, thickness, absorbency and other parameters of the material, and choose appropriate processing parameters and cutting methods to avoid cutting quality problems and equipment damage caused by improper material selection.

Keep your tube laser cutter clean

During the use of the pipe laser cutting machine, the surface of the equipment and the cutting area should be kept clean to avoid dust, dirt and other impurities from affecting the cutting quality and accuracy.

You should clean and maintain tube laser cutter before and after usage.

Regular maintenance on tube laser cutting machine

Tube laser cutting machines should be maintained regularly, including cleaning optical components, checking the transmission system, replacing consumables, etc.

Maintenance can maintain good performance of equipment and extend its service life.

Environmental factors for pipe laser cutter

The processing quality and accuracy of pipe laser cutting machines is affected by environmental factors such as temperature, humidity, and air pressure.

You should control environmental factors and maintain a stable processing environment.

Comply with environmental regulations

Pipe laser cutting machines will produce smoke, exhaust gas and other pollutants during working. Environmental protection regulations should be followed and corresponding exhaust gas treatment devices should be configured to reduce environmental pollution.

Follow safety regulations of tube laser cutting machine

Tube laser cutting machines should comply with relevant safety regulations during usage to ensure the safe operation of the equipment and the safety of operators.

How to maintain tube laser cutting machine

Check the cleanliness of tube laser cutter lenses

If it is not clean, please clean it in time; if it has burning spots that affect use, please replace it in time. Note that when taking out the protective mirror drawer, make sure there is no dust on site, and promptly use masking paper or special plugs to effectively seal the protective mirror window.

Check the tube laser cutter copper mouth

It is recommended to replace the copper mouth if it has obvious scars. Each replacement of the copper nozzle requires floating head calibration and inspection center. This could avoid coaxial deviation or airflow misalignment that affects the laser cutting effect.

Check whether the ceramic ring is loose

A loose ceramic ring will affect the stability of the laser cutting machine operation. Please tighten the ceramic ring to lock the ring by hand.

Check the center of the laser pipe cutting machine

This could ensure the coaxiality of the laser head, you can use transparent tape to adjust it and try to use a small nozzle to ensure it is more accurate.

Capacitance calibration

Start the machine tool every day to perform capacitance calibration

Return to origin and calibrate B-axis center

Start the machine tool every day to perform the return-to-origin action and calibrate the B-axis center.

Check the air source of tube laser cutting machine: 

Check whether the remaining air in the air source is sufficient for production and whether there is any air leakage in the air path.

You need to check the air outlet pressure value of the gas storage tank every day, and drain the gas storage tank.

Clean the chuck

Use clean compressed air to clean the dust and iron filings in the chuck in daily work.

Check vacuum hose

Check the vacuum hose daily for damage or looseness

Common Issues on Tube Laser Cutting Machine

The tube laser cutting machine starts normally but it does not respond.   

 You need to check the status of the main power switch indicator light, the motherboard indicator light, and the stand-alone drive indicator light.

Generally, if the three lights are not on and the device still makes a buzzing sound, it may be due to poor power contact or a problem with the motherboard.

There is no display on the operation panel or no response to the buttons after powering on.

First you can check whether there is any problem with the control panel connection cable and whether the power supply of the display module is normal and whether there are any problems with the panel operating system.

The checking method is to press the reset button and then check whether there are problems with the function and direction keys on the panel.

If everything is normal, it means there is a problem with the panel system. If the keys fail to respond, you can replace the data cable and try again.

The laser appears to be abnormal such as continuous or intermittent light emission when using the pipe laser cutting machine

You should confirm if the type of laser is incorrect. If there is no problem with the type of laser, failure of the laser power supply and damage to the motherboard and connecting cables will also cause abnormal light output.

Also, don’t ignore whether there is an abnormality in the cooling system of tube laser cutting machine.

How to review the Pipe laser cutting machine cutting quality

Roughness of cut surface

The laser cut section creates vertical lines and the depth of the lines determines the roughness of the cut surface. The shallower the line, the smoother the cut section.

In most cases, the roughness needs to be as low as possible, so the shallower the line, the higher the quality of the cut.

 Perpendicularity of cutting edges

The perpendicularity of the cutting edge is very important. When moving away from the focal point, the laser beam diverges and cuts towards the top or bottom depending on the position of the focal point.

The edge of the cut deviates from the vertical line by a few millimeters. The more vertical the edge, the higher the quality of the cut.

Cutting lines

When cutting thick plates at high speeds, the molten metal does not appear in the kerf under the vertical laser beam, but is ejected from the rear of the laser beam. As a result, a cutting edge is formed where the cutting line follows the moving laser beam.

Burr

One of the most significant factors that negatively impacts the quality of laser cutting is the formation of burrs. The presence of burrs on the cut edge necessitates additional processing to remove them, increasing processing time and cost. The severity and quantity of burrs can be used as visual indicators of the tube laser cutting quality.

material deposition

The laser cutting machine encounters a layer of specialized liquid that contains oil before the start of the drilling process. Vaporization and various materials do not require customers to use airflow to remove the hole, but discharge upward or downward will also form deposits on the surface.

Denting and corrosion

Sunk edges and corrosion on the cut edge surface have an adverse impact, affecting appearance. Denting and corrosion should be avoided to appear in cutting inaccuracies.

Deform

Laser cutting can cause parts to deform if it rapidly heats them. This is especially critical in fine machining, where profiles and connectors are often only a few millimeters wide. Controlling laser power and using short laser pulses can help reduce the amount of heat transferred, minimizing part distortion.

Tube laser cutting machine precautions for use

The dust removal device of the pipe laser cutting machine should be intact before cutting

Spindle speed change must be performed after stopping. The gears should be fully meshed when shifting. When you find that the machine tool is abnormal, stop it immediately for inspection.

When the tube laser cutting machine is rotating, no part of the human body should come into contact with the transmission components.

When placing long material pipes into the material rack and loosening the bundled lead wires, measures should be taken to prevent the pipes from rolling, impacting, and crushing people.

When the pipe cutting machine cuts the pipe head, it is necessary to prevent the pipe head from flying out and injuring people.

You should adjust the pipe cutting machine before working. The parking baffle must be fixed and clamped, loosened, forward, and backward tested before working.

When changing tools, measuring workpieces, lubrication, and cleaning pipe heads, you must stop the tube laser cutting machine.

You must pay attention to working safety and strictly follow the normal procedures.