The essential difference between the four types of laser cutting technology

The essential difference between the four types of laser cutting technology
Laser cutting is irradiated materials rapidly melting, vaporization and ablation or achieve ignition, with high power density laser beam irradiating a work, at the same time with coaxial with the beam of high speed airflow blow in the molten material, so as to realize the workpiece cut. Laser cutting is one of the hot cutting methods.
Laser cutting can be divided for laser vaporization cutting, laser fusion cutting, laser oxygen cutting and laser scribing and breaking control four categories.

1.Laser vaporization cutting
Using high energy density of laser beam heating the workpiece, so that the temperature rose rapidly, in a very short period of time to reach the boiling point of the material, the material began to vaporization, the formation of steam. The steam jet is very large, and in the same time, it forms a notch on the material. The vaporization heat of the material is generally very large, so the laser vaporization cutting requires a great deal of power and power density.
Laser vaporization for cutting thin metal materials and nonmetal materials. (such as paper, cloth, wood, plastic, rubber, etc.)

2.Laser melting and cutting
Cutting laser melting and laser heating to melting of metal materials, followed by blowing a non oxidizing gas (AR, he, N, etc.) and beam coaxial nozzle, gas rely on the strong pressure of the molten metal is discharged, the formation of incision. Laser melting and cutting does not require the complete vaporization of the metal, the energy required for vaporization of the 1/10.
Laser melting and cutting are mainly used for the cutting of materials or active metals, such as stainless steel, titanium, aluminum and its alloys.

3.Laser oxygen cutting
The principle of laser oxygen cutting is similar to that of oxygen acetylene cutting. It uses a laser as a heat source, with oxygen and other active gas as the cutting gas. On the one hand, the injection of the gas and the cutting metal, the oxidation reaction, the release of a large number of oxidation heat; on the other hand, the molten oxide and melt blown out from the reaction zone, the formation of the incision in the metal. Because of the oxidation reaction in the cutting process produces a lot of heat, so the energy required for laser oxygen cutting is only the melting of 1/2, and the cutting speed is much larger than the laser vaporization cutting and melting cutting.
Laser oxygen cutting is mainly used for metal materials and heat treatment of carbon steel, titanium steel oxidation.

4.Laser scribing and breaking control
Laser scribing is the high energy density of laser scanning on the surface of brittle materials, the material is heated to evaporate a small groove, and then applying a certain pressure, brittle materials will be along the slot at the split. Laser laser scribing generally used for Q switch and CO2 lasers.
The control fracture is the steep temperature distribution generated by the laser engraving, which produces the local thermal stress in the brittle material, which causes the material to be broken along the small groove.

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Safe operation of laser cutting machine

Safe operation of laser cutting machine

When laser cutting machine working,the failure is dangerous.Novice must undergo professional training in order to operate independently, the following to learn the 13 details of laser cutting machine safety work. 

1.Please follow the general cutting machine safety operation rules.Please start the laser in strict accordance with the laser start procedure. 

2.The operator must be trained to be familiar with the structure and performance of the equipment, and to master the relevant knowledge of the operating system. 

3.Wear good labor protective equipment according to regulations, must wear the protective glasses in line with the provisions in the vicinity of the laser beam.

4.Pls don't working the material when be not sure if it is suitable for laser,invoide producing the harmful fumes and vapors.

5.Operator is not allowed to leave the position when the equipment is running, if need to leave, please stop or cut off the power switch. 

6.Please put fire extinguishers in your fingertips; stop processing, please turn off the laser or optical gate; do not put paper, cloth or other flammable substances in the unprotected laser beam around.

7.When the abnormal appearance in the processing process, should be immediately shut down, in a timely manner to eliminate the failure or reported to the competent personnel. 

8.Keep the laser, bed and around the site clean and orderly, no pollution, waste, according to the provisions of the workpiece, sheet piling. 

9.When using gas cylinders, should avoid crushing welding wire, so as to avoid leakage accident. The use of gas cylinders, transport should comply with the rules of gas cylinders. The ban of gas cylinders in the sun or near the heat of the sun. When the valve is opened, the operator must stand on the side of the bottle mouth. 

10.Please observe the high pressure safety rules when repare laser machine.Follow the rules and procedures for 40 hours or one week per operation, 1000 hoursor six months of maintenance. 

11.After the boot, please first manual low speed Y, X direction of the machine, check to confirm whether there is abnormal situation. 

12.The new work program input, please try to run, and check its operate situation. 

13.During the work, observe the operation of the machine, so as to avoid the cutting machine out of the effective range or two sets of collision caused the accident.

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Overcome the difficulties of laser cutting machine cutting metal pipe technology

Overcome the difficulties of laser cutting machine cutting metal pipe technology 

Accompanied by the rapid growth of the stainless steel pipe production and consumption, laser cutting tube equipment are growing rapidly in popularity, the demand of personnel and technology of laser cutting machine grown quickly.This highlights the shortage and lag in the laser cutting equipment and laser cutting Overcome the difficulties of laser cutting machine cutting metal pipe technology 

Accompanied by the rapid growth of the stainless steel pipe production and consumption, laser cutting tube equipment are growing rapidly in popularity, the demand of personnel and technology of laser cutting machine grown quickly.This highlights the shortage and lag in the laser cutting equipment and laser pipe cutting talent and technology, which is also reflected in some stainless steel enterprises, with advanced laser cutting equipment, but still exposed pipe cutting efficiency is low, poor quality management, resulting in the phenomenon of serious waste of pipe. 

Laser pipe cutting processing technology is a high production efficiency, productivity and strong technology.Can modified the design at the last minute without affecting the entire the production process.Greater benefits is that the end user can control the short version or medium version in production without making a large number of templates, so you can give more quickly respond to customer needs, so this does not need to make the molds.From the perspective of flexibility, laser cutting processing technology can be used to process any shape of the processing program, and the laser can be completed in any direction. The shape of the template can be changed quickly, without the help of any tool, providing the possibility to process a competitive personalized packaging or trademark. Accuracy is one of the advantages of digital systems. Laser processing can offset printing and finishing process in the presence of inaccurate, such as material may produce flexible deformation, the laser can be based on these deformation is adjusted, and the traditional template making is not. Laser tube cutting products processing is a very accurate and high level technology, Of course, this requires a certain cost of investment in the early stage, the following will focus on the relevant issues related to laser cutting and provide targeted solutions.  
Worker can draw,nesting,cutting with the professional pipe cutting and nesting software,generate cutting program,then full automatic laser cutting for the large length of stainless steel pipe.The speciality of tube nesting software is the basis and prerequisite for the realization of high volume, high efficiency and high quality cutting production of laser tube cutting machine. 
At present, the laser pipe cutting process, there are some quality problems, for example: led to cut some parts over burning, pipe cutting inclined plane for burning, part corner, and cutting circular parts circle deformation or cannot be closed, pipe directly lead to serious waste and cut tube production efficiency is low. CNC pipe cutting technology refers to the NC system of the cutting control software to provide advanced cutting tube technology and rich pipe cutting experience, pipe cutting workers to operate by skilled in the use of control system, to achieve high quality, high efficiency of CNC cutting. CNC laser cutting technology is a high volume, high efficiency, high quality cutting production methods, CNC cutting pipe is the core of CNC cutting system. 
Pipe cutting process due to pipe cutting (especially for tubular diameter of square tubes), slag, attached on the tube wall, most of the heat produced in the cutting is absorption of the workpiece, cutting density is large, often cause overheating pipes, corner and square tube four horns, burning, seriously affecting the ring incision quality, can't even cutting. For such problems, the following solutions can be used: 
1, increase oxygen pressure.           
2, improve the angular speed of synthesis by software.           
3, laser cutting headband height sensing with dynamic system can guarantee in the process of cutting, cutting the nozzle and the workpiece plane height remained unchanged (focus unchanged), cutting effect does not change with the surface of the workpiece affected. 
The proposed solution will improve the laser tube cutting processing equipment efficiency in the use of, so as to improve the cutting efficiency is low, poor quality management, pipe caused serious waste, improve production and processing enterprises product efficiency, for the enterprise to create a better profit. talent and technology, which is also reflected in some stainless steel enterprises, with advanced laser cutting equipment, but still exposed pipe cutting efficiency is low, poor quality management, resulting in the phenomenon of serious waste of pipe. 
Laser pipe cutting processing technology is a high production efficiency, productivity and strong technology.Can modified the design at the last minute without affecting the entire the production process.Greater benefits is that the end user can control the short version or medium version in production without making a large number of templates, so you can give more quickly respond to customer needs, so this does not need to make the molds.From the perspective of flexibility, laser cutting processing technology can be used to process any shape of the processing program, and the laser can be completed in any direction. The shape of the template can be changed quickly, without the help of any tool, providing the possibility to process a competitive personalized packaging or trademark. Accuracy is one of the advantages of digital systems. Laser processing can offset printing and finishing process in the presence of inaccurate, such as material may produce flexible deformation, the laser can be based on these deformation is adjusted, and the traditional template making is not. Laser tube cutting products processing is a very accurate and high level technology, Of course, this requires a certain cost of investment in the early stage, the following will focus on the relevant issues related to laser cutting and provide targeted solutions.  
Worker can draw,nesting,cutting with the professional pipe cutting and nesting software,generate cutting program,then full automatic laser cutting for the large length of stainless steel pipe.The speciality of tube nesting software is the basis and prerequisite for the realization of high volume, high efficiency and high quality cutting production of laser tube cutting machine. 
At present, the laser pipe cutting process, there are some quality problems, for example: led to cut some parts over burning, pipe cutting inclined plane for burning, part corner, and cutting circular parts circle deformation or cannot be closed, pipe directly lead to serious waste and cut tube production efficiency is low. CNC pipe cutting technology refers to the NC system of the cutting control software to provide advanced cutting tube technology and rich pipe cutting experience, pipe cutting workers to operate by skilled in the use of control system, to achieve high quality, high efficiency of CNC cutting. CNC laser cutting technology is a high volume, high efficiency, high quality cutting production methods, CNC cutting pipe is the core of CNC cutting system. 
Pipe cutting process due to pipe cutting (especially for tubular diameter of square tubes), slag, attached on the tube wall, most of the heat produced in the cutting is absorption of the workpiece, cutting density is large, often cause overheating pipes, corner and square tube four horns, burning, seriously affecting the ring incision quality, can't even cutting. For such problems, the following solutions can be used: 
1, increase oxygen pressure.           
2, improve the angular speed of synthesis by software.           
3, laser cutting headband height sensing with dynamic system can guarantee in the process of cutting, cutting the nozzle and the workpiece plane height remained unchanged (focus unchanged), cutting effect does not change with the surface of the workpiece affected. 
The proposed solution will improve the laser tube cutting processing equipment efficiency in the use of, so as to improve the cutting efficiency is low, poor quality management, pipe caused serious waste, improve production and processing enterprises product efficiency, for the enterprise to create a better profit.