Benefits of Anodizing Aluminium in CNC Machining | Epic Tool
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Benefits of Anodizing Aluminium in CNC Machining


Advantages of Anodizing

Corrosion is often a concern with many metals. At Epic Tool, we work with our clients to identify solutions that are tailor made to their specific applications. One of the post processing methods that we often utilize in conjunction with our machining services is anodizing.


What is Anodizing?

The process of anodizing began back in the 1920’s as a method to prevent corrosion on aluminum parts. In addition to its corrosion resistance, anodizing will also improve the visual appeal of your machined parts, improve overall durability, and aid with electrical insulation.

Anodizing is an electrochemical process that involves submerging metal in a series of chemical baths along with a cathode. Hydrogen is released from the cathode, resulting in a metal oxide film on the submerged part.


Benefits of anodizing include:


Anodizing provides an increase in resistance to corrosion and wear and tear. Anodizing will extend the life of your aluminum parts and is well equipped for harsh environments or with moving mechanical parts that are subject to a lot of friction.

At Epic Tool, many of our anodized parts can be found in space, air, underwater, or architectural applications. In fact, aluminum oxide has been given a 9 out of 10 rating on the mohs hardness scale. This places it second only to diamonds, for hardness.

The bottom line is this: anodized aluminum parts will last longer than raw aluminum parts.


Machinist fixture plate


Colored aluminum often comes to mind when thinking about anodizing. Anodizing is both decorative, and enhances the visual look of our machined parts. It provides much better adhesion for paint primers than bare metal alone.

The resulting finish is extremely durable, abrasion resistant and won’t peel or chip. The finish is part of the metal.

Environmentally friendly:

Anodized parts can easily be recycled, as anodizing aluminum results in an environmentally friendly finish. At Epic Tool, this fact alone is extremely important to us as we strive to be as green as possible. 

Budget friendly:

Anodizing is an inexpensive process when compared to other finishing processes such as painting or powder coating. The finish is also much thinner than paints or powders and provides a much harder surface.


Is Anodizing Right For My Application?

If you’d like to learn more about anodizing and whether it makes sense for your application, please reach out to our team of professionals today. At Epic Tool, we’ll take the time to understand your specific needs, and offer advice specific to your needs. Contact us today!