Parts that are laser cut (pictured) or saw cut can be left left with thick burrs and significant excess material on the edges. These parts need to be processed using a heavy duty tumbling action. While Ceramic Media usually provides excellent deburring for mild to moderate burrs, the amount of metal that needed to be removed from the part (on the left) in the picture would require very long cycle times and aggressive, high wear rate media (an inefficient and expensive process).
The part on the right was barrel tumbled using part-on-part tumbling in a barrel tumbler designed to handle this type of aggressive tumbling action. A small addition (less than 5% by volume) of Aluminum Oxide Grit created an even more abrasive environment to remove the oxidation and excess material on the edges in less than 4 hours. This dry tumbling process resulted in a significant drop in processing costs and labor since minimal media was used (only Aluminum Oxide Grit), there was no waste water and the parts deburred themselves.