Anodizing Aluminum

At a glance..

Anodizing is an electrochemical process that converts the metal surface into a decorative, durable, corrosion-resistant, anodic oxide finish. Aluminum is ideally suited to anodizing. Learn more about anodizing aluminum here.

The details..

'Anodizing and Dyeing Aluminum' is a comprehensive guide that teaches readers how to transform raw aluminum into colorful pieces of art. The book covers various techniques such as hard anodization with sulfuric acid at low temperatures or high currents, which creates a more absorptive material; alternatively, one can use higher temperatures for thicker layers but less absorption. Readers will learn about two popular dyes: Rit dye (organic) available in grocery stores offering many colors but not light fastness while Black MLW (inorganic), known for its flat black coloration but requires special working procedures due to hazardous dust particles.

The author explains the cathode/anode ratio needed during the process along with precautions necessary when handling sulfuric acid. Sealing is another important step after dying aluminum because it hydrates the porous layer created by anodic oxidation while closing off any remaining pores from contamination or water damage.

In addition to covering all aspects of aluminum preparation before beginning this process - including cleaning with acetone/methanol solutions- there are specific guidelines regarding purity levels required depending upon silicon content within each piece being worked on so that results come out looking professional rather than unevenly finished surfaces caused by impurities left behind during machining processes.

'Anodizing and Dyeing Aluminum' offers additional tips like copper/brass processing options where voltage should be six volts across circuits instead of typical clear finishes found in most other metals processed through chromic/oxalic acids.