Summary for gray color by anodizing titanium Discussion
Gray color by anodizing titanium parts is the goal of Carlos Valencia’s question, but the thread suggests the process is not something easily duplicated from a simple recipe. Carlos asked for the chemical composition, voltage, and amperage needed to produce a dark gray, charcoal-like finish for biomedical parts. Madhav replied only that the metal and its quantity per square meter would be needed before he could explain further, without giving a usable process. The editor’s note adds the key practical advice: although the finish is covered by specification AMS 2488, the details are closely held by a small number of companies that perform it. Rather than trying to develop the process from scratch, Carlos may be better off finding a shop already equipped and experienced to produce the required gray anodized titanium finish for his friend’s parts.
Q. I’m in the process of anodizing titanium parts and I need to achieve a dark grey finish (similar to charcoal) I’m not an anodizing expert and would greatly appreciate if any body who is, would guide me. I need to know the chemical composition, voltage and amperage required to obtain this finish. I’m doing this to help a friend who is in the biomedical industry and needs this type of finish for some parts.
Carlos Valencia
Technician – Miami, Florida, USA
2004
A. Name the metal with it’s quantity p/m, you want to do in grey finish, hope in my next mail I can explain you.
Madhav
– Mumbai, Maharashtra, India
2004
Ed. note: Although this process is covered by specification AMS 2488, Carlos, the details of the process are closely held by a handful of companies who can do it. You may be better off locating a shop who can do it for your friend than trying to do it yourself for him.