Reducing Processing Steps for a High Luster Finish
Is there a process that can eliminate one of our cut steps and how do we get a little brighter microbrite finish?
Q. We are brightening aluminum parts with six-millimeter microbrite-porcelain polishing balls. We first run a ceramic cut media to reduce our cutting lines and then we run a plastic media to smooth the roughness of the ceramic finish. This gives us a smooth finish to run the final microbrite for the bright finish. Is there a process that can eliminate one of our cut steps and how do we get a little brighter microbrite finish? –A.B.
A. There is a polyester plastic media, Z1-zirconium plastic that cuts almost like a ceramic but give you a smooth finish to burnish off of. You will have to run the Z1 cut cycle approximately 20 percent longer than the combined time of your current two cut cycles.
The Z1 weighs 100 pounds per cubic foot instead of the normal polyester plastic of 65 pounds. This combined with the zirconium abrasive will give you a good cut and finish.
To improve your luster, try a mix of three- and four-millimeter microbrite porcelain balls. This size mix gives a higher luster than a six-millimeter. Also try another burnishing compound; compound can make a big difference.
RELATED CONTENT
-
Taking the (Oxide) Edge Off
Metal fabricators that laser-cut with oxygen take steps to prepare parts better for powder coating.
-
Super Finish
How to achieve an isotropic finish using a traditional vibratory bowl—and why you’d want to do it
-
How to Select the Right Flap Disc
Consider these five variables to determine what fits your application.