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Why is the thin-walled stainless steel square tube easily deformed?

Why is the thin-walled stainless steel square tube easily deformed?

Time:2022-03-18 Source:China Wuxi JiaNuo Special Steel Co.

Stainless steel square tube welding deformation is mainly caused by the welding seam shrinkage force is greater than the strength of the parent material.

1, stainless steel square tube only one side of a weld, the use of segmental back welding from the middle, that is: the second section of the weld arc in the first section of the arc.

2, stainless steel square tube to take a smaller welding line energy, (welding line energy is proportional to the size of the current, and the welding speed is inverse), that is: with a smaller welding current, faster welding speed.

3, stainless steel square tube with symmetrical two, four weld seams, starting from one end of the welding, the use of symmetrical cross-front method two staggered welding. Let’s say: the first weld 150mm long, and then welded symmetrical square 300mm, crossing the front 150mm, followed by each weld 300mm, it crosses 150mm each time.