How can dents at a steel tube cluster joint be repaired?

Repairing dents at a steel tube cluster joint effectively involves the use of a specially formed steel patch plate welded over the dented area. This method provides a robust and structurally sound solution to restore the integrity of the joint. Welding a patch plate is particularly advantageous because it maintains the strength and geometry of the structure, which is crucial in load-bearing applications. The steel patch will bond with the existing material, preventing any potential weak points that could arise from other repair methods.

In contrast, filling a dent with epoxy resin may not provide sufficient strength or durability, especially in highly stressed areas. Replacing the entire steel tube can be costly and time-consuming, often making patching a more efficient choice when feasible. Hammering the dent out from the inside may risk damaging the integrity of the tube or creating other issues, such as thin spots or distortions, which could further compromise the structure. Thus, the most effective choice for repair in this scenario is to use a specially formed steel patch plate and weld it over the dented area.