Welding of circular hollow sections

Circular hollow sections should pay special attention when welding. When welding, pay attention to seamless docking. There is no gap in the joint requirement, and it should be docked. Below we mainly look at how a lower circular hollow sections  is welded?

Circular hollow sections  is widely used in engineering construction, machinery manufacturing, steel construction projects, shipbuilding, solar power generation bracket, steel structure engineering, in addition, circular hollow sections  are also used, for example, in the engineering installation industry, such as curtain walls, welded structures, and grid structures.

In order to ensure the strength after docking, a cross-ribbed plate may be welded in one of the circular hollow sections, and the circular hollow sections is beveled at the butt joint for penetration. When docking, it can be spot welded to another rectangular tube or H-shaped steel to maintain the straightness after docking.

Welding is not as small as possible, but welding that meets the requirements of use is excellent welding. Drying can't be done without cost. As you said, only spot welding can be done, but whether it can meet the strength requirements. I don't know your specific situation.