sheet metal processing plants will generate a lot of heat in the process of processing. for example, lasers are the purposes of laser cutting of metal materials with concentrated energy. In the use of this type of sheet metal processing, must pay attention to the burning edge problem.

especially in the production of small holes, sufficient refrigeration can be obtained on both sides of the holes, but part of the small holes on the inside of the double holes can spread due to the small space for heat generation and excessive concentration of heat, resulting in problems such as over-burning and slag hanging, this requires everyone to find a way to deal with it. In the fiber laser cutting with O2 as auxiliary vapor, the key to solve the difficulty lies in how to suppress the heat of redox reaction. The auxiliary O2 can be used when the hole is broken, and the backward is converted into auxiliary gas or hydrogen to laser cutting.

this kind of sheet metal processing method can produce small holes of 1/6 thick steel plate. The single pulse laser cutting conditions with low working frequency and high peak power have the characteristics of reducing the heat export, which is conducive to the improvement of laser cutting conditions. Setting the conditions as single single pulse laser, high peak value export of kinetic energy compressive strength and low frequency conditions can reasonably reduce the deposition of molten alloy on the surface of raw materials in the whole process of hole breaking, reasonably inhibit the heat export, and then solve the difficulties and flexibly use this kind of sheet metal processing technology.

In addition, in the sheet metal processing of thick steel plate metal materials, the problem of over-burning can also occur. In the production and processing of such raw materials, the auxiliary gas used is hydrogen, and it is impossible to produce burning in laser cutting. However, because the temperature of the raw materials on the inside of the small hole is very high, the slag hanging condition on the inside will be more frequent.

A reasonable treatment is to increase the working pressure of the auxiliary steam and set the condition to a single pulse condition with high peak export and low frequency. When the auxiliary steam is applied with gas, it is impossible to produce over-burning, but it is very easy to cause slag hanging at the bottom edge. The conditions must be set to high auxiliary air pressure, low-frequency single pulse conditions derived from high peak values and other factors to make the production and processing more effective.