Southern Ontario Star Welding Engineering

Shielded Metal Arc Welding (SMAW) is recognized as one of the most versatile welding processes, suitable for both ferrous and non-ferrous materials across a wide range of thicknesses.

The process can be performed in all positions and is straightforward to use and cost-effective, contributing to its long-standing popularity.

Our team has extensive experience in the development and qualification of SMAW procedures supporting a wide variety of applications.

Flux Cored Arc Welding (FCAW)—also known as dual shield welding—is a widely used semi-automatic process similar to GMAW, using a continuously fed tubular wire electrode.

Originally developed in the 1950s as an alternative to SMAW, FCAW improves productivity by replacing stick electrodes with a continuous wire feed.

FCAW can be performed with or without external shielding gas, making it highly adaptable for both shop and outdoor applications.

Submerged Arc Welding (SAW) is a highly efficient automatic welding process, ideal for producing longitudinal and circumferential butt and fillet welds.

SAW is most applied to carbon-manganese steels, low-alloy steels, and stainless steels. With the correct electrode/flux selection it can also be adapted for non-ferrous materials.

We are equipped with multiple advanced SAW systems from leading manufacturers, including twin-wire configurations with induction heating capability.

Gas Tungsten Arc Welding (GTAW) is widely used across many industrial sectors, particularly where high-quality, precision welds are required.

In manual applications, the focused and stable arc makes GTAW especially suitable for thin materials and for achieving controlled penetration in root passes of pipe welds.

GTAW is extensively used in mechanized and automated systems, including advanced orbital welding for chemical processing and boiler manufacturing.

Metal-Cored Arc Welding (MCAW) is a high-productivity semi-automatic or automatic welding process that combines many of the advantages of Gas Metal Arc Welding (GMAW) with the deposition characteristics of flux-cored wires.

MCAW uses a tubular metal-cored electrode consisting of a metallic outer sheath filled primarily with powdered metals, alloys, and arc-enhancing ingredients. Unlike conventional Flux-Cored Arc Welding (FCAW), metal-cored electrodes generally produce very little slag, allowing welders to achieve high deposition rates while minimizing interpass and post-weld cleaning.

Shielding Gas: Metal-cored electrodes normally require an external shielding gas, commonly argon-rich mixtures containing CO₂. Shielding-gas selection can significantly affect arc characteristics, penetration, spatter, bead profile, mechanical properties, and overall welding performance.