Surface integrity

Surface integrity is the surface condition of a workpiece after being modified by a manufacturing process. The term was coined by Michael Field[1] and John F. Kahles[2] in 1964.[3]

The surface integrity of a workpiece or item changes the material's properties. The consequences of changes to surface integrity are a mechanical engineering design problem, but the preservation of those properties are a manufacturing consideration.[4]

Surface integrity can have a great impact on a parts function; for example, Inconel 718 can have a fatigue limit as high as 540 MPa (78,000 psi) after a gentle grinding or as low as 150 MPa (22,000 psi) after electrical discharge machining (EDM).[5]

  1. ^ Dr. Michael Field, retrieved 2009-08-28
  2. ^ Field, Michael (1994), John F. Kahles, doi:10.17226/4779, ISBN 978-0-309-05146-0, retrieved 2009-08-28
  3. ^ Degarmo, Black & Kohser 2003, p. 778.
  4. ^ Cite error: The named reference degarmo779 was invoked but never defined (see the help page).
  5. ^ Degarmo, Black & Kohser 2003, p. 777.