Hard anodising is an electrochemical process widely used across industries, such as in the manufacture of aerospace, automotive, and marine parts and components.
Anodising is the most common commercial practice used for the protection of alloys against erosion and has been successfully used for many decades. The process allows oxidation of the alloy to take place, resulting in the formation of a protective film on the surface. This is generally achieved through placing the alloy into a sulphuric acid solution and passing through an electric current.
Benefits
Let’s look at five benefits of the hard anodising process:
- Hard anodising provides an exceptionally hard surface, with the only harder surface being that of a diamond. This ensures extremely high resistance against wear, creating a longer lifespan for parts and components.
- Hard anodising provides resistance against high temperatures, which is essential in the aerospace and automotive industries. Aluminium that has been through the hard anodising process is capable of withstanding a temperature of 200ยบ for short periods.
- The protective film or layer of oxidation that is achieved as a result of the hard anodising process allows a strong protectdl_June 25 Poetons 15 – Five benefits of hard anodisingion against corrosion, even in extreme conditions. This layer can vary in thickness in accordance with requirements. While 5mm to 20mm is common, a thickness of up to 200mm can be achieved.
- Hard anodising provides aluminium with electrical resistance and decreased conductivity.
- An aluminium oxide layer integrates fully and completely with the base metal, meaning it is resistant to flaking, peeling, or chipping. This makes it ideal for surfaces that will go on to be sprayed or painted.
Hard anodising solutions
Experts in surface treatments, such as https://www.poeton.co.uk/surface-treatments/anodising/hard-anodising, can provide completely bespoke hard anodising solutions in accordance with your needs.
The process is completed on-site, with fully automated lines, highly skilled operators, a professional laboratory, and stringent quality inspection.
Surface treatments that push a material’s capabilities to the limit allow you to lead the way and succeed against your competitors by delivering the highest quality finishes on your components and parts.
