In the welding of heavy structural parts such as frames for engineering machinery and pressure vessels, the welding quality of thick plates above 10mm directly determines the service life of the product. The traditional single-wire submerged arc welding has two major bottlenecks: one is the limited penetration, which requires at least 5 layers of welding for 30mm thick plates, and the insufficient penetration of each layer can easily lead to interlayer incomplete fusion; the other is the scatter

When welding manually, the welder needs to adjust the angle of the welding gun by experience, and the size deviation of the welds of the same batch of products can reach ±1mm, and the rework rate often exceeds 20%. When a car parts factory produces suspension brackets, four skilled welders are needed to work shifts because the welds include three 90° corners and two arc transitions. The daily output is only 800 pieces, and the assembly problems caused by the angle deviation account for 35% of th

When welding the circumference of a long pipeline, manual flipping is laborious, and the weld bead is prone to height differences. Thick walled pipelines may also be incomplete due to uneven heat input.

Small items such as hanging accessories for bathroom hardware, brackets for electronic accessories, etc., although the length of the single weld seam is only 10-50mm, the daily demand often exceeds 10,000 pieces.