With the development of industrial technology, the speed requirements for welding pipes in our pipe industry are getting higher and higher, and now the welding technology that best matches the requirements of pipe manufacturers is laser welding technology.

The process flow of laser welding steel pipe: first the strip steel is made into a tube blank, and then the edge of the tube blank is rolled into a gap value smaller than the focus diameter of the laser beam, and the focus of the laser beam evenly falls on the edge of the welded tube blank. Due to the high unit density of the laser beam, the welding process can be completed at a higher speed in the protective atmosphere regardless of whether the welding wire is used.

The laser welding process has the following characteristics: ① the capacity of the welding pool is reduced, and the gas protection conditions are improved; ② can greatly shorten the residence time of high temperature metal; ③ The metals in the weld zone and the thermal effect zone can obtain fine grain structure; ④ The application range of various metals and alloys is expanded; ⑤ can improve the welding speed, thereby improving production efficiency.

Laser welding technology is the best way to produce austenitic and ferritic stainless steel pipes, and is also an effective way to produce other kinds of welded pipes, which can not only improve the production efficiency of welded pipes by 2 to 3 times, but also improve the welding quality, and can obtain steel pipe properties that are difficult to achieve with other production methods. Of course, the equipment cost of laser welding device is more expensive, and there are certain limitations in the process, which need to be further explored and studied.

For more information,can click the laser prduction line.

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