SAW Process

SAW Submerged Arc Welding Installation

Applications

Process for welding and hard surfacing of low alloyed carbon steel, stainless steel and refractory steel
It combines productivity, quality and operator comfort
It is used in thicknesses from 3 to 300 mm and provides a high welding speed and high deposition rates
With one or more wires, it is found in many industries: infrastructure, shipbuilding, o shore pipe mill, heavy duty pressure vessels, energy…

SAW process and performances

SAW Narrow Gap

Applications

Narrow gap process used for welding thick plates,mainly for the following industrial applications: Power Generation, Nuclear, Pressure Tanks, Windmill, Petrochemical.

Process

It is a submerged arc process with single or tandem narrow gap torch, designed to weld thick plate (generally over 50 mm) using practically parallel sides and narrow gap preparation
Narrow gap process allows to increase productivity and to result in lower cost welding by decreasing the volume of metal needed and the welding time compared to conventional preparation with bevel
The process is adapted for both longitudinal and circumferential welding

Equipment: Lincoln Electric provides a full range of equipment for every application
Example of modular tandem welding head proposed.

Multi-wire submerged arc welding

Thanks to the high deposition rate and high welding speed, multi-wire submerged arc welding is widely used in pipe mill industry.

Advantages

Increased productivity: Multi-wire submerged arc welding (SAW) allows for simultaneous deposition of multiple weld beads, resulting in significantly higher welding speeds and improved productivity. This means more work can be completed in a shorter amount of time, leading to increased efficiency and cost savings.

Improved weld quality: The use of multiple wires in SAW enables better control over the weld pool and heat distribution, resulting in improved weld quality. This process helps minimize defects such as porosity, uneven penetration, and lack of fusion, ensuring stronger and more reliable welds.