WIT Press

Superfinishing And Shot Peening Of Surfaces To Optimise Roughness And Stress

Price

Free (open access)

Paper DOI

10.2495/SURF990291

Volume

25

Pages

1

Published

1999

Size

86 kb

Author(s)

P. O'Hara

Abstract

Residual stress and surface roughness significantly affect component performance. For many years, Engineers have designated roughness constraints on drawings with little heed to residual stress. Fortunately this is changing as industries become aware of the significance of each and both are designated in critical applications. Superfinishing is developing as a post Shot Peening treatment in situations where metal to metal contact occurs, high temperature or fluid flow and/or optimum performance is required. Consequently the combination of residual stress and roughness control are essential on certain applications. Introduction Surface condition was not a critical feature to Engineers many years ago. In fact Shot Peening was an unpredictable black art of questionable benefit. This belief had some foundation many years ago, when occasion

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