Anodizing is an electrolytic passivation process used to increase the thickness of the natural oxide layer on the surface of metal parts. The process is called anodizing because the part to be treated constitutes the anodizing electrode of an electrolytic cell. Anodizing increases corrosion and wear resistance and provides better adhesion to primers and glues than bare metal.
If glossy anodizing is chosen, some tool marks may be visible on the finished component.
We offer anodizing type II and III, which are ideal surface finishes for aluminum parts. Anodizing strengthens aluminum parts and is available in several colors, depending on the type. All types of anodizing will increase the lead time and cost per part.
By choosing matte anodizing, parts are shot-peened before the chemical process. This, from an aesthetic point of view, allows any tool marks to be hidden.
Products in Anodized Services
Anodizing involves suspending parts via a “jig” or “rack.” This will leave marks on your part where anodizing wasn’t possible. If there are areas on which you can’t accept “jig” marks, please remember to include a technical drawing indicating these areas and follow our cosmetic procedure. Learn more about this on our surface finishing page
Anodizing insulates your parts, reducing their conductivity.
Masking is not required by default, as anodizing doesn’t raise the thickness of your part significantly. Remember to indicate in your CAD file whether you want specific part areas to be masked or plugged.
Type III anodizing, in contrast, adds substantial thickness to your part’s surface. We recommend plugging and masking threaded/reamed holes or other critical-to-function surfaces.
- Factory Covers an Area（㎡）
- 3000
- CNC Auto Lathe Machines
- 35
- CNC Milling Machines
- 16
- Stamping Machines
- 22
