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Surface finishes

Aluminiumeloxierdienste

Wir bieten Eloxieren Typ II und III an. Hierbei handelt es sich um ideale Oberflächenveredelungen für Aluminiumteile. Durch das Eloxieren werden Aluminiumteile verstärkt und es sind je nach Typ verschiedene Farben verfügbar. Alle Eloxaltypen führen zu erhöhten Vorlaufzeiten und Kosten pro Teil.

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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.
Tolerances for all surface preparations are held after anodizing

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.
Non standard requests

* 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.

Black (Black MLW)
Similar to: RAL 9004, Pantone Black 6
Clear
Similar to: depends on material
Sample part showcasing red anodizing
Red (Red ML)
Similar to: RAL 3031, Pantone 1805
Sample part showcasing blue anodizing
Blue (Blue 2LW)
Similar to: RAL 5015, Pantone 3015
Sample part showcasing orange anodizing
Orange (Orange RL)
Similar to: RAL 1037, Pantone 715
Sample part showcasing gold anodizing
Gold (Gold 4N)
Similar to: RAL 1012, Pantone 612

Color options for aluminum anodizing type III

Sample part showcasing aluminum anodizing type III in black color
Black
Sample part showcasing aluminum anodizing type III in natural color
Natural
(thicker layers will appear darker)

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.

Das Eloxalverfahren von Hubs

Beim Eloxieren handelt es sich um ein elektrolytisches Verfahren, das sowohl zum Schutz von Aluminiumteilen vor Verschleiß und Korrosion als auch zur Verbesserung des kosmetischen Aussehens dient. Das Eloxalverfahren eines Teils besteht aus folgenden Schritten:

  • Teil an eine Anode anschließen.

  • Teil in eine säurehaltige Elektrolytlösung eintauchen.

  • Kathode an einer Metallelektrode in der Lösung befestigen.

  • Positive Ionen reagieren mit negativen O2-Ionen und die Oberfläche wird porös.

  • Dadurch entsteht eine Aluminiumoxidschicht auf dem Teil.

  • Korrosionsschutzmittel oder Färbungsmittel für kosmetische Zwecke verwenden.

  • Nanoporen versiegeln.

Beginnen Sie noch heute mit der Produktion Ihrer eloxierten Teile.

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