Can you anodize welded aluminum?

Can I weld anodized aluminum? Parts can be welded prior to anodizing. The use of 5356 welded rod is strongly recommended, though some discoloration will still occur. Because most welding process require electrical conductivity the anodic coating must be ground away where the weld will be applied.Click to see full answer. Beside this, why is it difficult to weld Aluminium?The anodized coating gives the aluminum an attractive, uniform, hard surface that is also highly resistant to corrosion. The characteristics of this aluminum-oxide coating make it very difficult to weld. First of all, aluminum oxide is an electrical insulator, so starting and maintaining a stable arc is difficult.Also Know, can you weld extruded aluminum? 6XXX alloys. These are primarily the extrusion alloys, although they are available in sheet and plate as well. They are prone to be crack-sensitive. However, with the proper techniques, they can all be readily welded using 4043 or 5356. Besides, how do you prepare aluminum for anodizing? It is OK to clean aluminum prior to anodizing using mild soap/detergent, acetone or alcohol. A principle to keep in mind is that whatever you have on the machined finish will remain after anodizing or chromate conversion. Think of the anodizing process as similar to film development.Can polished aluminum be anodized?Anodizing polished aluminum. The surface needs to be electrically non-conductive, and the depth of anodizing to be at least a few microns (> 0.0001″).