dirty parts after tumbling deburr
dirty parts after tumbling deburr
(OP)
I've been deburring some aluminum castings in a vibratory deburring machine. It works great for removing the burrs. However it leaves the parts dirty. I'd like for the machined surfaces to remain shiny after deburr. I'm using ceramic media and a burnishing compound. I'm thinking I should try plastic media and a detergent. Any ideas?





RE: dirty parts after tumbling deburr
Not sure what you mean by "dirty?" Stuff sticking on the surface or so finely scratched as to give a diffuse finish?
There are many variables in vibratory finishing. Usually a plastic resin filled with ceramic abrasive and a compound specifically for aluminum are used, wet. Visit some mass finishing media/compound supplier websites for something appropriate.
http://www.finishing.com/Mechprep/index.html
http://www.roslerusa.com
www.remchem.com [link not working?]
Also, find articles & suppliers at
http://www.metalfinishing.com
http://www.pfonline.com
RE: dirty parts after tumbling deburr
RE: dirty parts after tumbling deburr
Is this issue something new or has it been ongoing?
Also are you reusing the deburring compound or is it being used only once?
Ck1999
RE: dirty parts after tumbling deburr
RE: dirty parts after tumbling deburr
Have you looked into the stainless media I mentioned above? Not only do the parts come out of the tumbler clean, they get a nice polish.
RE: dirty parts after tumbling deburr
What concentration are you using your deburring compound?
Do you monitor your concentration?
What kind of soils are you cleaning?
Ck1999
RE: dirty parts after tumbling deburr
The solution in the tank gets very dirty quickly. I don't know what makes up the dirt. There's a thick gray colored sediment that forms in the bottom of the tank. I switch it out after about 3 hours of use. I use the minimum compound mixture ratio recommended by the manufacturer (2 oz/gal).
RE: dirty parts after tumbling deburr
ck1999
RE: dirty parts after tumbling deburr