6 Metal Myths: Debunking Fabrication Misconceptions

Metal fabrication is an industry built on precision, strength, and durability—but it's also surrounded by a surprising number of myths. Whether it’s the belief that aluminum rusts or that welding is just “glorified glue,” misinformation can lead to costly mistakes or unrealistic expectations. Today, we’re busting some of the biggest myths in metalworking and setting the record straight.

Myth #1: Aluminum Rusts Just Like Steel

One of the most common misconceptions is that aluminum rusts like steel. In reality, aluminum doesn’t rust at all—because rust is specific to iron-based metals. However, aluminum does oxidize, forming a thin protective layer that actually helps prevent further corrosion. This makes it a great choice for outdoor and marine applications, as it holds up well against the elements.

Myth #2: Welding Is Just Glorified Glue

If welding were as simple as gluing two pieces of metal together, everyone would be doing it! In truth, welding is a complex and highly skilled process that involves melting and fusing metals at a molecular level. Different types of welding—such as MIG, TIG, and stick welding—require specific techniques, materials, and expertise. Unlike glue, a proper weld can be just as strong (or even stronger) than the original metal itself. And unlike glue, you can’t accidentally weld your fingers together.

Myth #3: CNC Machines Do All the Work—No Skill Required

With the rise of CNC (Computer Numerical Control) machining, some people assume that machinists just push a button and let the machines do everything. In reality, CNC machining requires extensive programming knowledge, precise setup, and an understanding of material properties. A skilled machinist ensures that tools, speeds, and feeds are optimized for each job, preventing errors that could lead to wasted material or defective parts.

Myth #4: Thicker Metal Always Means Stronger Metal

While it might seem logical that a thicker piece of metal is automatically stronger, strength depends on much more than thickness. Factors like material composition, heat treatment, and design all play a role. For example, a thinner piece of titanium can be much stronger than a thicker piece of aluminum. Understanding the right metal for the job is crucial in fabrication. It’s kind of like how a trained MMA fighter can take down a guy who just eats a lot of protein and calls it a workout—size alone doesn’t mean strength.

Myth #5: Metal Fabrication Is Only for Industrial Applications

Many people think metal fabrication is strictly for large-scale industrial projects, but it’s actually used in countless applications, from custom car parts to artistic sculptures and even high-end furniture. If you’ve ever admired a sleek metal staircase, a precision-cut gear, or a custom motorcycle frame, you’ve already seen metal fabrication in action.

Myth #6: All Metal Parts Can Be Repaired Easily

While metal is strong and durable, not all damaged metal parts can simply be “fixed.” Some cracks, warps, or fatigued areas require full replacement rather than repair. In some cases, attempting to weld or reshape a compromised part could weaken it further. The best approach depends on the type of damage, the material, and the intended use of the part.

Busting Myths, Building Better Metal Parts

Understanding the reality behind these metal fabrication myths helps customers and businesses make smarter decisions when designing and ordering custom parts. Whether you need precision CNC machining, expert welding, or custom fabrication, Vision Tech delivers quality craftsmanship with no shortcuts or misconceptions.

Have a metal fabrication project in mind? Let’s talk! Contact us today:

 www.vision-tech.us