Why anodizing color is so important for custom aluminum machining parts?

milling machining

Anodizing is an electrochemical process used to produce a hard, durable finish on metal parts. The process involves applying an electric current to the part in a solution of hydrogen peroxide and electrolytes.

CNC machining causes the metal to break down into its components, which forms an oxide layer on the surface of the metal.

The oxide layer is much harder than the original metal and will protect the part from corrosion and other damage.

Need to utilize anodizing to cause custom aluminum machining or CNC machining? We have rattled off a few essential sorts and advantages.

Have a look at the below context before you begin searching for high-quality custom aluminum parts. Let's consider this CNC machining in detail!

What is Anodizing?

Before we jump to anodized custom aluminum parts and CNC machining, you need to know how to anodize and why it is utilized in various industries, such as the medical and aerospace industry

The medical and aerospace industries are two of the biggest industries that use anodizing to produce low-cost automotive parts which have low weight and extremely high speed when they start working with CNC machining.

The medical and aerospace industries are two of the biggest industries that use anodizing to produce low-cost automotive parts which have low weight and extremely high speed when they start working with CNC machining.

Aluminum is undeniably fit, although other nonferrous metals, like magnesium and titanium, can also be anodized.

It's achieved when you drench machined aluminum into an electrolyte of acidic nature and then pass over the electricity through the electrolyte.

If you want a stronger metal than aluminum or magnesium then you can go with titanium. It's significant-good to go and after anodized, titanium will show some types of colors. It's light weight and more suitable than both of them.

A cathode is dipped in the anodized container; electrical conductivity causes the aluminum to go about as an anode against the cathode.

The oxygen particles leave the medium, shifting over to and consolidating with the aluminum molecules on the outer layer of the cathode.

Anodizing is, in this way, a question of exceptionally controlled oxidation, the improvement of an ordinarily happening peculiarity. This material creates a good-quality aluminum alloy.

Some major types of anodized products are, Chromic acid Anodize, Sulphuric acid, and hard coat.

It is used in CNC milling, aluminum machining, CNC machine, metal parts that are used in the machining process and machine manufacturing processes, machined aluminum products, low-cost high, precision cutting tool, and production of light weight metals with high tolerances. Moreover, aluminum has excellent corrosion resistance.

How does Anodizing work?

In order to anodize a metal such as copper, you have to attach the copper piece to a circuit with its positive terminal, anode. Aluminum 7075 acts as an anode when dipped in the acidic electrolyte bath.

The solution is a chemical solution that consists of some essential ions such as sodium phosphate and sodium sulfate.

Now connect the material like aluminum to a hanging stand in order to prevent it from moving here and there during the chemical process, and click the negative terminal to the metal in the electrolyte.

Whenever you start sending current to the circuit, the cations are drawn towards the negative terminal and oxygen to the aluminum part from the arrangement.

When the aluminum ions leave the anode, they become porous, react with oxygen ions and shift towards the metal surface.

This is the process:

  • Make the aluminum anode.
  • Make cathodes, i.e., the metal plates are cathodes.
  • Hang them in the acidic solution
  • Apply electrical current
  • The particles will react with oxygen
  • Their reaction will produce a rigid solid and a corrosion-free layer on the solid block.
  • Electrical conductivity will deduct the aluminum particles, making pores with screw brackets

Types of anodizing!

There are various types of aluminum process; the following are the significant types.

Type I Chromic Acid Anodizing

Chromic acid is a chemical procedure involving electrical conductivity in order to make an aluminum film by quickly taking control of the oxidation of the machined aluminum surface. The resulting film is corrosion resistant.

It produces a thin film than that of type 1 and type 2. This type is used for making machined aluminum alloy used in aerospace as these parts are used in high pressure, and aluminum 7075 is anodized to create custom aluminum parts that are of high strength and standard grades.

It works best on machined aluminum parts with few alloying components in CNC machining!

Type II Sulfuric acid Anodizing

Sulfuric acid is the most well-known technique used for anodizing and is additionally moderately practical.

This type of machine is preferred among applications that require complex and intense surfacing.

The sulfuric acid- involving procedure delivers a permeable layer with tight tolerances against heat and penetrating rays.

Type III Hard Coat Anodizing

Likewise, alluded to the arduous coat process of anodizing, hard anodizing aluminum results in exceptionally meager, non-metallic coatings.

The cathode material portions are completely incorporated with the covering, which brings about an incredibly high strength-to-weight ratio.

Strength to weight ratio refers to how strong and durable the materials are. The low weight and high stability of the resulting materials are beneficial in CNC turning and other manufacturing processes.


Anodizing has made aluminum 7075 and aluminum 6061 one of the most regarded and broadly involved materials today in the development of thousands of aerospace and medical industries. Anodizing aluminum 7075 and aluminum 6061.

  • CNC machining safeguards satellites from the brutal climate of the room because of their temperature resistance.
  • This machined material is Utilized while manufacturing tall structures and buildings
  • CNC machining has an essential role in producing profoundly tough outsides, rooftops, and elevators.
  • Is used to produce high-quality, lightweight, heat-treated automotive parts and complex shapes of aluminum alloys used in the production of manufacturing CNC machines.
  • CNC machining is used in display shows, building materials, and home apparatuses.
  • Is environment friendly, has high strength, high quality, and corrosion, hence used in the processes of manufacturing metal parts that are to be used in CNC machining and aluminum machined parts.

Advantages of anodizing!


The range and the durability of aluminum are very high. Most aluminum alloys do need to take care of; Aluminum machining is durable and highly corrosion-resistant. Due to their corrosion resistance, these aluminum machine parts are long-lasting.

Color stability

When presented to bright beams, aluminum parts keep up with high strength, don't have an applied covering that is liable to chipping or stripping, and have a repeatable shading process.

UV is stable and won't strip or drop, as it is fundamental to the metal. During the machining process, these aluminum parts have high stability of colors.

It also helps to stabilize the color of aluminum 6061 and aluminum 7075.

Ease of maintaining

A gentle cleanser and water cleaning typically will reestablish an anodized profile to its unique appearance.

It's not difficult to keep up with; it may be cleaned with water and gentle cleansers to reestablish the first radiance.

Aluminum 6061 and 7075 both are difficult to take they maintain but after anodizing, it's easy maintaining them.

Low Cost

Even with these aluminum material capabilities, these aluminum parts are low-cost and readily available. It's low cost even from stainless steel and iron when machined.

Health and Safety

An anodized finish is non-toxic and is heat-impervious to the dissolving point of aluminum. Since the anodizing system supports a usually happening oxide process, it is non-perilous and creates no destructive or risky results.

CNC machining with developed and powerful spindles allow users to cut aluminum safely at an intense speed.

Choose Worthy Hardware for your custom aluminum machining parts?

Are you looking for low weight, high strength, and corrosion-free CNC machining? Aluminum parts and aluminum alloys are commonly found at hardware companies, but most have limited resistance.

You need to make sure that you get delivered a heat-resistant material with an excellent corrosion resistance range machined with good aluminum machining capabilities.

Choose Worthy Hardware. Worthy will provide you with the most suitable metal parts, CNC machine, milling, machining, and manufacturing components with speedy delivery.

Worthy has an excellent team with the best services available. We have CNC machining of various aluminum alloys.


Anodizing aluminum is an important process because it increases the strength and durability of the parts, while also providing a protective coating that prevents corrosion with screw brackets.

Anodizing aluminum is a necessary step in the machining process for any part that will be used in a harsh environment or that will be exposed to moisture.

Choose Worthy Hardware and get service updates every time there are some made. Services updates are critical as you will be able to find something new every time, they bring up recent service updates. Also, you will get fast delivery at your doorstep.

We deliver machined aluminum parts and manufacturing metals used in CNC milling for aircraft and medical industries. The range of the types of machined aluminum parts is varying and vast.

Using CNC machine, the material and aluminum parts range from aircraft and medical to workshop and food industry.


Worthy Hardware is a CNC manufacturing and sheet metal fabrication company,including CNC machining services,CNC milling services, CNC turning services, laser cutting services and stamping services.Call us +86-76989919645 or email us [email protected] for more discounts for your projects.