One of the most common applications for abrasive finishing is to remove burrs, including heavy, light, and feather burrs. The process can be used to smooth a surface, as preparation for plating, or rough a surface, as preparation for painting. Deburring can eliminate unwanted sharp edges on parts or create a specified radius. This process is also widely used for cleaning prior to other finishing processes.
In Electrochemical Deburring (ECD), burrs are dissolved from metallic workpieces electrochemically and are flushed away by pressurized electrolyte. The process is a specialized, static adaptation of electrochemical machining. The tool and workpiece do not contact each other, and the workpiece is not exposed to any mechanical or thermal stresses. As a result, there are no changes in the physical or chemical properties of the metal.
Fast production and consistent results are major advantages of the ECD process. Electrochemical deburring is ideal for selective (controlled) deburring and the removal of burrs that are inaccessible with most other processes. For parts having surfaces that cannot be altered or scratched, ECD is often the only possible method of deburring. ECD is estimated to be 5 to 40 times faster than hand deburring, but can only be used on clean, conductive materials.
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