The metal industry is one of the most important application markets for laser processing, and the competition in China's sheet metal market is going to shift toward competition for high-quality and high-tech products. As a consequence of this, the transformation of processing technology is unavoidable if it is to be brought into conformity with the development trend of the international market. Then, what kinds of challenges will be presented themselves during the process of processing sheet metal?.

Techniques involving Cutting and PerforationAny method of thermal cutting, with a few exceptions here and there where it can start from the edge of the sheet, generally involves making a small hole in the sheet. These exceptions are rare. In general, laser cutting programming can avoid manual processing when the surface cutting fracture of the designed part does not require roughness. This allows the puncture point to be automatically generated by the control software. However, when the design has higher roughness requirements for the cut portion of the part being machined, which typically requires agitation, this issue should be taken into consideration. This is because agitation is required. During the photocutting process, the manual control of the puncture point involves manually adjusting the starting position of the laser beam. This is also known as the manual control of the puncture point.

This hole, which functions similarly to the perforation made by wire cutting, is the starting point for the laser beam profile cutting process. In most cases, the direction of the laser beam's trajectory is perpendicular to the tangent direction of the cutting profile of the part that is being processed. As a result, the perforation diameter is relatively small, and the perforation quality is high. A high peak power pulse laser is utilized in the process of pulse perforation, which melts or vaporizes a small amount of the material. When holes form as a result of exothermic oxidation, it is common practice to use air or nitrogen as an auxiliary gas in order to fill them. During the cutting process, the pressure of the gas is lower than the pressure of the oxygen. It is necessary to relocate the laser program's generated puncture point to the required reasonable position in order to achieve the level of surface accuracy that is required for the parts that are being processed. In addition, pulse perforation necessitates the utilization of a trustworthy gas circuit control system in order to accomplish the switching of gas types in addition to the regulation of gas pressure and the perforation duration.

Getting rid of the burr on the low-carbon steel workpiece that was cut by laserAccording to the working principle and design principle of co2 laser cutting, it is analyzed that the laser focus position is incorrect, and it needs to be detected and adjusted according to the focus offset; the laser output power is insufficient. This is because the laser focus position is incorrect, and it zinc die casting products needs to be detected and adjusted according to the focus offset. Because of this, it is essential to determine whether or not the laser generator is operating in a typical condition. If it is normal, check to see if the output value of the laser control button is accurate and adjust it; the cutting line speed is too slow, and it needs to be increased in the operation control; the cutting gas purity is insufficient, and high-quality cutting working gas needs to be provided; the laser focal length deviation needs to be adjusted according to the focal length in order to carry out testing; the cutting gas purity is insufficient; the cutting line speed needs to be increased in the operation control. Make the necessary adjustments to the offset; after being on for an extended period of time, the machine becomes unstable and must be turned off before being restarted.

When all of the other parameters are within normal range, the following scenarios should be considered to determine whether or not the laser head nozzle needs to be replaced. As a result, when cutting and processing parts with a laser, careful consideration should be given to this facet. At this time, it is necessary to consider other aspects of the machine tool in a comprehensive manner, such as zinc die casting products whether or not the nozzle needs to be replaced, whether or not the movement of the guide rail is unstable, etc. The findings from the practical testing indicate that the third approach yields the best results. On the other hand, a laser cutting machine with a lower power should use pulse punching to obtain a better surface finish, and after the perforation is finished, it should immediately use oxygen rather than auxiliary gas for cutting. This is because oxygen has a higher molecular weight than auxiliary gas. As a result, the laser that is utilized must not only have a high output power but also have the spatiotemporal characteristics of the beam; consequently, the requirements for laser cutting cannot be satisfied by a standard cross-flow co2 laser.

The process of selecting the point of puncture in laser cuttingDuring the processing of the material, the continuous laser irradiates the material to form a pit in the center, and then the molten material is quickly removed by the working gas flow coaxial with the laser Form a hole beam. This is the working principle of the laser beam that is used in the fiber laser cutting machine. Workpiece fabricated through laser cutting of stainless steel and aluminum-zinc plateburr analysis of the situation described above, first consider the burr factor when cutting low carbon steel. However, you cannot simply increase the cutting speed because an increase in cutting speed can sometimes cause the plate to be cut without wear. This is the case in particularly in the processing of galvanized sheet metal.

It is more practical in industrial production to alter the average laser power by modifying the pulse width, pulse frequency, pulse width and frequency, or all three of these parameters simultaneously. In the past, punch holes were cut with a laser after first being punched out on a laser punching compound machine. After that, the holes were punched out. This kind of rough cut surface will flow downward along the section of the processed material that was cut, and this is primarily because of the sudden change in the vector direction that occurs whenever the laser beam moves in a short amount of time. How to deal with sparks that aren't normal when cutting low-carbon steelBecause of this circumstance, the flatness quality of the cut section will be compromised. At this point, you need to put an immediate stop to the cutting process, check the connection status of the laser head, and then re-thread. In the event that the nozzle is not changed out with a new one, the cutting air pressure ought to be raised, and the thread at the connection between the nozzle and the laser head ought to be loosened.