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Abrasive flow deburring (AFM)

Deburring process where an abrasive is pushed through the interior of a workpiece feature by a hydraulic cylinder, to wear away its burrs.

Illustration of Abrasive flow deburring (AFM)

The process

The workpiece is clamped in the flow between the two hydraulic cylinders and the space is filled with a highly viscous abrasive. The cylinder pistons have synchronized movements so fluid is pressed back and forth through the workpiece cavities. The abrasive agent thus wears away the burrs and rounds off the sharp edges. Also the internal surface ground in this manner has a greater surface smoothness.