ASTM B 851 Standard Specification for Automated Controlled Shot Peening of Metallic Articles Prior to Nickel, Autocatalytic Nickel, or Chromium Plating, or as Final Finish
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ASTM B 851 Document Information:
Title
Standard Specification for Automated Controlled Shot Peening of Metallic Articles Prior to Nickel, Autocatalytic Nickel, or Chromium Plating, or as Final Finish
ASTM International
Publication Date:
Apr 1, 2004
Scope:
This specification covers the requirements for automated, controlled
shot peening of metallic
articles prior to electrolytic or autocatalytic deposition of nickel
or chromium, or as a final
finish, using shot made of cast steel, conditioned cut wire, or
ceramic media. The process is
applicable to those materials on which test work has shown it to be
beneficial within given
intensity ranges. It is not suitable for brittle materials. Hand
peening and rotary flap peening
are excluded specifically.
Shot peening induces residual compressive stresses in the surface and
near-surface layers of
metallic articles, controlling or limiting the reduction in fatigue
properties that occurs from
nickel or chromium plating of the article, or the fatigue properties
of unplated articles.
This standard does not purport to address all of the safety concerns,
if any, associated with its
use. It is the responsibility of the user of this standard to
establish appropriate safety and
health practices and determine the applicability of regulatory
limitations prior to use.
Keywords:
- peening
- shot
- shot peening
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