Surface finishes
Services d’anodisation aluminium
Nous proposons l’anodisation de type II et III, qui sont des finitions de surface idéales pour les pièces en aluminium. L’anodisation renforce les pièces en aluminium et est disponible en plusieurs couleurs, selon le type. Tous les types d’anodisation augmentent le délai d’exécution et le coût par pièce.
Anodizing type II
| Surface preparation | Colors | Glossiness | Cosmetic availability | Thickness** | Visual appearance |
|---|---|---|---|---|---|
| As machined (Ra 3.2μm / Ra 126μin) | Clear, Black, Red, Blue, Orange, Gold | Glossy (Above 20 GU) | No | 50μm to 150μm | Parts are anodized directly after machining. Machining marks will be visible. |
| Bead blasted | Clear, Black, Red, Blue, Orange, Gold | Matte (Below 10 GU) | Cosmetic on request | for clear: 8 to 12μm(0.0003” to 0.0004”) black and color: 12 to 16μm(0.0004” to 0.0006”) | Grainy texture, matte finish |
| Bead blasted | Clear, Black, Red, Blue, Orange, Gold | Glossy (Above 20 GU) | Cosmetic on request | for clear: 8 to 12μm(0.0003” to 0.0004”) black and color: 12 to 16μm(0.0004” to 0.0006”) | Grainy texture, glossy finish |
| Brushing(Ra 1.2μm / Ra 47μin) | Clear, Black, Red, Blue, Orange, Gold | Glossy (Above 20 GU) | Cosmetic on request | for clear: 8 to 12μm(0.0003” to 0.0004”) black and color: 12 to 16μm(0.0004” to 0.0006”) | Parts are manually brushed to reduce marks, then anodized. Brushing lines will be visible. |
Anodizing type III
| Surface preparation | Colors | Cosmetic availability | Thickness | Visual appearance |
|---|---|---|---|---|
| As machined (Ra 3.2μm / Ra 126μin) | Black, Natural (thicker layers will appear darker) | No | 35 to 50μm(0.0013” to 0.0019”) | Parts are anodized directly after machining. Machining marks will be visible. |
* We supply a range of standard colors (see Color options). If you need a particular RAL or Pantone color code, please contact sales@hubs.com
**As a standard our anodizing thickness will follow ISO 7599: ISO class AA10 (for clear) and ISO class AA15. If your parts require different standards, please contact sales@hubs.com
Color options for aluminum anodizing type II
Color anodizing can have some variation in color due to standard alloy tolerance variations. Check the color scheme below to see the color range.
Color options for aluminum anodizing type III
Gallery of anodized parts manufactured by Hubs
Design considerations for aluminum anodizing
- 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.
Le processus d’anodisation d’Hubs
L’anodisation est un procédé électrolytique permettant à la fois de protéger les pièces en aluminium contre l’usure et la corrosion et d’améliorer leur aspect cosmétique. Voici les étapes de base de l’anodisation d’une pièce :
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Connectez la pièce à une anode.
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Immergez la pièce dans une solution électrolytique acide.
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Appliquez une cathode à une électrode métallique dans la solution.
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Les ions positifs réagissent avec les ions négatifs de l’oxygène et la surface devient poreuse.
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Une couche d’oxyde d’aluminium se forme alors sur la pièce.
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Utilisez des inhibiteurs de corrosion ou des colorants à des fins cosmétiques.
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Scellez les nanopores.
Envoyez vos pièces anodisées en production dès aujourd’hui
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