METAL FABRICATION PROCESSES:

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In what can be called the Modern Industrial Age, there’s metal all around us.  To list the litany of ways in which metal impacts our lives would take a lifetime.  With that being said, have you ever stopped to ponder how metal is shaped, formed, and treated for the desired outcome?  That broad definition can be summed in three words: metal fabrication processes.

Indeed, metal fabrication is an umbrella term that most people can’t wrap their heads around entirely.  Luckily, the experts at Meta Fab are here to help you develop a basic understanding of what this process involves in a little more depth.

FORGING

Forging is a common practice for intricate metalwork.  The process involves using forced compression to achieve the desired shape.

Done by hand, forging involves heating metal to the point that it can be bent, shaped, and formed with the use of a hammer or die strikes.

One of the oldest forms of metal fabrication processes in existence, forging is still widely used by blacksmiths and fabricators for detailed and artistic work to this day.

CASTING

Whereas forging metal is something that’s done by hand, casting is the process of pouring molten metal into a mold.  From there, it’s cooled to the point that it becomes hard.

Casting is widely accepted as the go-to process for mass-produced products where the same mold can be used over and over again with minimal variance in the final outcome.

DRAWING

This fabrication process utilizes tensile force to pull metal into a tapered die.  This stretches the metal into a thinner shape.

Drawing is most commonly used in sheet metal fabrication processes where the final product is a box-like or cylindrical vessel.

Metal fabrication 

Effective quality control maintains traceability across the whole manufacturing process and successfully controls all stages of production. Potential clients are reassured that operations will continue in the region and will result in the highest-quality products through the presence of quality assurance systems for metal fabrication. Additionally, a properly operating quality assurance system provides standards and procedures to meet or exceed customer expectations, which forms the cornerstone of a successful cycle.

FORMING

Just as the name would suggest, forming is the process of bending metal to the desired angle.  This is most often accomplished with a brake press that applies pressure to metal so that a crease is formed.

Other forms of folding can be done with the use of a hammer with clamp bars that hold the metal in place.

MACHINING

Machining is a subtractive shaping process that removes unwanted material to create a form.

Within this substrate, there are several different forms including drilling, turning, and milling.

Turning uses a lathe to rotate metal at a speed that allows cutting tools to remove the metal in a circular fashion.  A CNC machine is the most common tool used for turning and often involves precise measurements.

Just like it sounds, drilling uses a bit to protrude a hole in the metal.  Simple enough.

Lastly, milling is very common among the metal fabrication processes by which multi-point cutting tools remove metal from the workpiece.  CNC machines are also used for this process which normally functions as a final finish process to create a desired texture or appearance.

EXTRUSION

During extrusion, metal is forced between an opened or closed die.  Here, the piece of metal is reduced to the cross-section of the die.  As a result, a cavity is formed.

The end result is usually a cylindrical shape that’s common in piping or wiring.

CUTTING

One of the most versatile metal fabrication processes is cutting.  On the surface, the process is nothing more than cutting large pieces of metal into smaller ones.

Cutting is quite intricate and involved, however.  Technology like lasers, waterjets, power scissors, and plasma are all utilized to create exacting cuts.

Depending on the project, cutting is often the first, if not only, process used in fabrication.

PUNCHING

This process creates holes in a workpiece.  Punch presses have specially designed turrets that hit the metal through a die to produce holes in specific locations.

Punching is used in both light and heavy metalwork.

FINAL THOUGHTS ON METAL FABRICATION PROCESSES

Metal fabrication is easy to understand at an elementary level.  With that being said, the numerous metal fabrication processes involved are each unique and highly detailed.  Knowing the basic tenets of each is key to undertaking any metal fabrication project.

At MetaFab, we pride ourselves on being experts in many of the metal fabrication processes named above.  Furthermore, it’s our goal to help you understand how each process is carried out from start to finish.

If you have questions about a particular metal fabrication process, or which one is best for your project, give us a call today.

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