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Abrasive flow machining (AFM), also known as extrude honing,[1] is a very precise and economical method of smoothing and polishing internal surfaces and producing controlled radii. The process was first patented by the Extrude Hone Corporation in 1970.[2] The process is particularly useful for difficult to reach internal passages, bends, cavities, and edges. The AFM process uses a specially formulated abrasive laden polymer, hydraulically forced over, or through, areas requiring finishing. The unique properties of the polymer (called media) permit it to flow through passages and conform to the shape requiring finishing.

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References

  1. ^ Schrader, George F.; Elshennawy, Ahmad K.; Doyle, Lawrence E. (2000), Manufacturing processes and materials (4th ed.), SME, p. 626, ISBN 9780872635173, http://books.google.com/books?id=Nz2wXvmkAF0C&pg=PA626.  
  2. ^ McCarty, Ralph William, "Method of honing by extruding", US 03521412, issued 1970-08-21

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Abrasive flow machining (AFM), also known as extrude honing,[1] is a method of smoothing and polishing internal surfaces and producing controlled radii. A one-way or two-way flow of an abrasive media is extruded through a workpiece, smoothing and finishing rough surfaces. One-way systems flow the media through the workpiece, then it exits from the part. In two-way flow, two vertically opposed cylinders flow the abrasive media back and forth.[2] The process was first patented by the Extrude Hone Corporation in 1970.[3]

The process is particularly useful for difficult to reach internal passages, bends, cavities, and edges.

Contents

See also

References

  1. ^ Schrader, George F.; Elshennawy, Ahmad K.; Doyle, Lawrence E. (2000), Manufacturing processes and materials (4th ed.), SME, p. 626, ISBN 9780872635173, http://books.google.com/books?id=Nz2wXvmkAF0C&pg=PA626. 
  2. ^ [1] Extrude Hone, accessed 2/26/2010
  3. ^ McCarty, Ralph William, "Method of honing by extruding", US patent 03521412, issued 1970-08-21. 

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