Structural steel fabrication is the building and construction of structures by many bending, cutting, and assembling processes. These processes are very complex, and a very magnificent thing to watch.
Bending is done by hammering the steel until it goes to whatever shape it is that is desired. Bending is done so that the structure that is needed, which will be the end result of all the work that goes into it, can have all of the right parts and shapes of metal that it needs to be held together.
Cutting can be done in many ways, the most commonly known way being to saw through the metal. There are other ways, like shearing, chiseling, torching, and torching with numerical control cutters, using a laser, mill bits, torch, or a water jet.
Assembly, obviously, is the joining of the pieces that were just cut and bent to the shape and length needed to fit the structure that will come from the assembly. Assembly is usually done by welding, binding with super strong adhesives, threaded fasteners, riveting, or even more bending in the form of a crimped seam. Sheet metal and structural steel are usually the beginning materials for fabrication, as they are sturdy elements that will not just collapse in the human hand and ruin the entire project.
Steel and metal are materials that have been trusted by humans for a long time, for its sturdiness and promise to never fall apart. As with all other complicated manufacturing processes, both automation machines and human labor are used to do all of these things with the steel and metal. Some of the steps that must be taken in order to build whatever it it is that needs to be built from all of the steel and metal, can be very dangerous.
This is why humanity created these fancy machines that have the ability to do almost anything that is required to build a sound structure. While the machines don’t actually build the structures themselves, they can help with the welding and any other shaping that may have to be done to the steel or metal. These machines can really come in handy when you don’t have a hand. Machine shops and fabrication shops have overlapping capabilities, but fabrication shops usually work on the metal preparation and assembly, as was described above.
Machine shops also cut metal, but they are more concerned with the machining of parts on machine tools.