Shenzhen HSJ Metal Fabrication Co., Ltd.
Shenzhen HSJ Metal Fabrication Co., Ltd.

Operation Details and Burned Edge Problems of Sheet Metal Machining

1. What details should be paid attention to during sheet metal machining?

Sheet metal machining plays a very important role in the market, bringing us a lot of convenience to our lives. The sheet metal machining industry also affects various industries.

The customization of sheet metal machining involves many processing processes, so there are many details worth noting in the processing operation. Today, we will give you an understanding of them.

(1) Details during cutting in sheet metal machining

Sheet metal laser cutting is a commonly used technology in sheet metal machining customization. If the cutting is not done well, it will have a great impact on the subsequent process. Therefore, we should pay attention to details in this link to ensure the quality of sheet metal machining. In addition to product safety, the operator should also pay attention to personal safety during the operation and not be careless.

(2) Details in measuring sheet metal machining

It should be known that a loss of millimeters may lead to thousands of miles. Measuring technology is used in sheet metal machining operations, and accurate measurement data is required. Attention should be paid to measuring details. Measurement gaps may lead to poor product performance and quality. Therefore, for the sake of safety and stability, the details of sheet metal machining are very important.

(3) Details of cleaning in sheet metal machining

Ensuring cleaning details is necessary for the stability of sheet metal machining operations. Generally, residual materials need to be cleaned up in a timely manner to ensure satisfactory cleanliness.

In summary, these details should be paid attention to in the operation of sheet metal machining to ensure excellent operation and meet the needs of the function, bringing you high-quality sheet metal machining products.

2. Burnt edge problems in sheet metal machining

A lot of heat will be generated during sheet metal machining, such as using high-concentration energy to achieve metal processing by laser. When using this kind of sheet metal machining, attention should be paid to the problem of burnt edges.

Especially in the process of processing small holes, the outer wall of the hole can be fully cooled, but the inner side of the small hole part is too concentrated due to the small space for heat diffusion, which causes overheating, slag hanging, and other problems. Therefore, it is necessary to study and solve this problem. When using oxygen as an auxiliary gas for laser cutting, how to suppress the exothermic reaction is the key to solving the problem. The method of supplementing oxygen in drilling and lagging conversion to air or nitrogen for cutting can be used.

This is a larger sheet metal machining method that can process 1/6 thick plate small holes. Under pulsed cutting conditions, low frequency, high peak output power can reduce heat output, which is conducive to optimizing cutting conditions. Setting conditions to a single-pulse laser beam, high energy intensity, high peak output, and low frequency can effectively reduce the accumulation of melted metal on the surface of the material during the material piercing process, effectively suppressing heat output, and solving this problem.

In addition, in the process of sheet metal machining for thick plates, there will be problems of overheating. The auxiliary gas is used as an auxiliary gas for processing such materials, and there will be no burnt edges during laser cutting. However, due to the high temperature on the inner wall of the hole, slag hanging is easy to occur on the inner wall.

Determining to increase the auxiliary gas pressure to reach high peak output and low-frequency pulse conditions is effective. The use of air as an auxiliary gas is also like using nitrogen, and there will be no burn edge, but slag hanging is easy to occur at the bottom, and it is necessary to set higher auxiliary gas pressure and lower pulse frequency with high peak output to achieve better treatment results.

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