Anodize over Flame spray
Anodize over Flame spray
(OP)
Have a part that required flame spray Mil-Std-869,Then hard anodize Mil-a-8625 type III. First attempt flame spray pitted and peeled after anodize. Flame sprayer says you cant anodize over flame spray.Does anyone know about these processes?





RE: Anodize over Flame spray
I have never seen the requirement for Hard Anodize on Aluminum Flame Spray. Doesn't mean there isn't one, but it doesn't make sense. Aluminum Flame Spray is a very soft Aluminum Base Material (1100). If a harder material is required (for a Hard Anodized Surface), a harder Plasma Spray Material should be called for.
Aluminum Flame Spray is used for electrical protection or as an Antenna, not a wear surface.
RE: Anodize over Flame spray
RE: Anodize over Flame spray
I wouldn't "grind" Aluminum either!
Don't know what SF Aluminum is, but will check it out.
Just curious...what is being repaired with Aluminum Flame Spray?
RE: Anodize over Flame spray
RE: Anodize over Flame spray
Anyway, whether the plame spray coating is for dimensional restoration or a wear resistant coating like carbides, anodizing over a flame sprayed coating seems VERY strange to me, as this process needs really 'contact' with the base material.
RE: Anodize over Flame spray