There’s are several welding practices used in steel fabrication. The best method to use depends on the intended use of the finished piece as well as the thickness of the metal itself.
The thickness of stainless steel can be greatly reduced if cool rolling is implemented. The process of cool rolling is more labor intensive than hot rolling but produces a thinner slab and a better finish. This is especially important when the project calls for precise dimensions. Hot rolled metals are better suited for bulky projects like railroads and steel beams.
Three more common welding methods include:
TIG welding is one of the most commonly used welding techniques when working with stainless steel. It produces high-quality joints and can be used in a wide variety of projects. TIG welding is recommended when working with thinner material.
When combined with a single-sided technique, TIG welding effectively prevents oxidation and corrosion.
Spot welding is commonly used on projects involving a tight budget. It’s economical but versatile. While spot welding has benefits, it can only be used to create localized joins. In this way, spot welding doesn’t offer the same level of strength as TIG or MIG welding.
The strength of spot welded joinings increases along with the force and heat applied. Ensuring the cleanliness of the equipment and metal surfaces also increases strength.
MIG welding is most commonly used on complex projects. Through the use of a pulsed current supply, welders end up saving time by not having to constantly recharge or brush welds.
MIG weldinHig is extremely versatile but is the most expensive welding technique. MIG welding also comes with a learning curve as welders will need an understanding of the slightly more complex equipment and processes.