Structural metal fabrication is a fancy metallic construction product course of that entails completely different sorts of sub-processes and strategies. From chopping and shaping to welding and meeting, all these represent a single manufacturing course of known as structural metal fabrication. Structural welding is among the vital procedures in structural metal fabrication as it’s used to fuse two or extra items of metallic collectively to create a single construction. With no welding, no metal construction could be produced. To be able to create a sturdy and powerful metal construction, one must know what welding course of is finest used for the aim.

man welding a structural beam

On this weblog, we’ll discover the completely different welding processes utilized in structural metal fabrication in addition to advise on probably the most environment friendly one to make use of. Learn on!

Widespread Welding Processes Used In Structural Metal Fabrication

  1. Stick welding

Stick (also referred to as SMAW amongst skilled welders) is among the oldest welding strategies. It’s a handbook welding course of the place a consumable electrode is fed into the weld pool. The electrode coating acts as a stabilizing agent, defending the weld pool and weld seam from environmental contaminants. This course of is thought for intensive slag left behind on the floor of the weld seam, which may be eliminated by grinding or brushing. Stick welding will not be probably the most environment friendly welding course of. Nonetheless, it’s best for newbie welders to be taught the fundamentals of welding. It’s also probably the most cost-effective technique as stick welding gear is comparatively cheap and simple to arrange. For metal fabrication functions, stick welding will not be one of the best match, particularly if time and most effectivity are of the utmost significance.

  1. Self-shielded flux-cored arc welding

Within the self-shielded flux-cored welding approach, a hole wire electrode is fed repeatedly into the weld pool by the welding gun. This technique is essentially completely different from MIG welding in that the weld pool shouldn’t be shielded from contamination by an out of doors gasoline, comparable to carbon dioxide or argon. As a substitute, a welding arc and a flux compound coating the wire mix to create a gasoline that shields the weld pool. Self-shielded flux cored arc welding is a really value and process-efficient technique because it doesn’t require shielding gasoline, thus no must get, refill and transport the gasoline tank with the shielding gasoline. It’s also an appropriate welding technique for out of doors welding as it’s not affected by wind or different climate circumstances.

  1. Fuel-shielded flux-cored arc welding

In gas-shielded flux-cored arc welding, gasoline is required to guard the weld pool from environmental contaminants. It’s usually utilized in industrial and heavy-duty functions and thus is ideal to be used in structural metal fabrication, particularly if welding must be carried out on-site and in distant areas. Fuel-shielded flux-cored arc welding leaves a major quantity of slag on prime of the weld which implies there’s an extra step within the welding course of to chip it off. Though, if visible look shouldn’t be of excessive significance and doesn’t have an effect on the standard of the weld bead, this will not be a problem.

man welding staircase

  1. Submerged arc welding


The sort of welding course of will get its identify from the truth that the arc is submerged within the layer of flux masking the welding space. In submerged arc welding, there are two welding consumables concerned, the electrode and the flux. The flux that covers the arc is molten and thus offers electrical conduction between the electrode and the workpiece. Flux additionally acts as a protecting protect which prevents the weld space from oxidation and contamination from the air. On account of the truth that the weld gun is immersed within the layer of flux, minimal publicity to the arc and little fume generated, submerged arc welding is taken into account to be a secure welding technique.

  1. Steel inert gasoline welding

Steel inert gasoline welding or MIG is among the most typical welding processes because of causes comparable to ease of gun maneuvering and the welder’s capability to weld metals of various thicknesses. In MIG welding, a wire welding electrode is fed by a MIG gun, creating an arc that generates warmth. The warmth melts the metallic being welded and thus fuses it collectively. MIG welding makes use of a shielding gasoline to guard the weld space from oxidation and contamination. Fuel utilized in MIG welding varies from argon, carbon dioxide and helium to a mixture of all these gasses. MIG welding is among the most used welding strategies in structural metal fabrication. Its capability to weld quite a lot of metals in addition to effectivity and velocity makes it a most well-liked welding technique in structural metal fabrication.

Finest Welding Course of for Structural Metal Fabrication

Structural metal fabrication is a fancy course of, so welding concerned in it needs to be as straightforward as potential with the intention to to not additional complicate the method. Stick welding and self-shielded flux-cored arc welding (FCAW-S) processes are mostly used for welding structural metal in distant areas in functions subjected to antagonistic climate circumstances. Fuel-shielded flux-cored arc welding (FCAW-G) and submerged arc welding (SAW) are principally used for structural metal welding carried out indoors.


Selecting the welding course of for a selected software ought to primarily be guided by the metallic sort and its thickness. Different elements that affect the selection of the welding course of such because the place during which welders should work, the kind of welding gear obtainable for speedy use and the talent of the welder assigned to a selected undertaking must also be taken under consideration when selecting one of the best welding course of for structural metal fabrication.