Single-sided welding double-sided forming

Single-sided welding and double-sided forming means that the weld on one side can be formed well. It is often used for welding of pipes, and it can no longer be welded inside. Single-sided welding uses continuous arc welding and arc welding on both sides. The single-sided welding and double-sided forming process is an operation method using ordinary electrodes and special operation methods on the front side of the groove to ensure the front and back of the groove after welding.


Generally speaking, a good welder can do double-sided forming, but the double-sided forming technology is not easy to master and requires considerable experience and understanding. Therefore, unless replaced by argon arc welding, single-sided welding is rarely used. The single-sided welding double-sided forming of the root welding layer is not only susceptible to slag inclusion, but also not easily fused, and is most easily welded.


This paper introduces two common welding methods and techniques of single-sided welding and double-sided forming continuous arc welding and interrupted arc welding.


One. The arc welding method is a single-sided welding method that controls the shape of the molten pool, the temperature of the molten pool, and the thickness of the liquid metal in the molten pool by controlling the continuous burning and extinguishing time of the arc and the movement of the arc. Double-sided forming technology.


2. The continuous arc welding method refers to the arc welding method in which the arc is continuously burned during the welding process, and does not extinguish. Take a small bevel edge gap, choose a smaller welding current, and always maintain the short arc continuous welding. Forming process.