ANODIZED ALUMINUM NAMEPLATES

ANODIZED NAMEPLATES

Nelson-Miller has obtained NADCAP approval for our anodizing process. Nadcap (National Aerospace and Defense Contractors Accreditation Program) is an industry-managed approach to conformity assessment of 'special processes' that brings together technical experts from prime contractors, suppliers and representatives from government to work together and establish requirements for approval of suppliers using a standardized approach. Unlike traditional third party programs, Nadcap approval is granted based upon industry consensus. Having Nadcap accreditation allows Nelson-Miller to supply anodized parts to organizations that demand the accreditation. More importantly, it offers Nelson tighter controls on our anodizing process to supply our customers with parts that will meet or exceed their specifications.

Anodizing is used to create an abrasion and chemical resistant coating for aluminum nameplates and panels. Anodic coatings are used to retard oxidation in aluminum by forcing the oxidation of the aluminum through electrolytic methods in conjunction with dyes.

Anodized aluminum parts are specified in many military, automotive, aircraft and appliance applications. Anodizing can be used to simulate various materials such as brass, copper and bronze at a fraction of the cost of those materials. The anodizing and printing processes allow exceptional sharpness and resolution of copy. Parts may be selectively dyed additional colors, permitting multiple colors to be used on the same part.

Certain anodized colors tend to fade in ultraviolet light, so care must be taken when selecting colors which will be exposed to direct sunlight. Matching custom colors is very difficult because the colors are dyed and not printed. Additional color matching tolerance must be allowed when a custom color is specified.

Anodized parts are often used in conjunction with other processes to create unique and lasting products such as etched nameplates, screen printed nameplates and lithographed nameplates.

Standard manufacturing procedures on nameplates and panels allow fully anodized parts to have un-anodized edges and holes. However, edges and holes can be anodized by fabricating the parts first, then anodizing. This manufacturing process is more expensive due to additional handling required.

Finishes on aluminum to be anodized are applied prior to anodizing. They include polished aluminum, satin brushed, and non-specular matte.

Anodized aluminum provides an excellent base for subsequent finishes and treatments, such as adhesives, paints and inks. Anodizing of aluminum offers a very attractive and long lasting product.

ANODIZING PROCESS

Anodizing is forced oxidation of aluminum using sulfuric acid with controlled time and direct current to open the pores of the aluminum, then introducing a dye which becomes an integral part of the aluminum. By applying an anodizing resist using a stencil or screen, color can be selectively dyed into the material, creating one or more anodized colors on the product.

APPLICATIONS

  • Indoor: Excellent
  • Outdoor: Good (dependent on color selected)
  • Aircraft and aeronautical: Used near hydraulic fluids, skydrol and other fluids
  • Marine and off-shore environments
  • Decorative panels, bezels, escutcheons, overlays and nameplates
  • Military and identification markings and specifications
  • Automotive and appliance parts
  • Any application requiring exceptional durability (both abrasion and chemical)

COLORS

Most colors can be used in this process, although repeatability is difficult because parts are dyed, not painted or printed. Certain colors, such as yellow, appear more gold than yellow when anodized. Additional tolerances must be allowed when matching to custom colors.

TOLERANCES AND MISCELLANEOUS DATA

  • Thickness of anodic coatings: .00012" - .00040" (typical)
  • Alloy types used: 1100, 1145, 3003, 5052, 6061
  • Finishes: polished, bright, satin brush, mill finish, matte bleached

OUR ANODIZED NAMEPLATES MEET THE FOLLOWING SPECIFICATIONS:

  • Mil-P-541 D Comp A, Class II
  • Mil-P-6906 B
  • Mil-A-8625 Type II, Class I and II
  • Mil-P-19834 A

NEED HELP WITH YOUR NEXT ANODIZED NAMEPLATE PROJECT?

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