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1.1 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.
1.2 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.
1.3 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
B183 Practice for Preparation of Low-Carbon Steel for Electroplating
B242 Guide for Preparation of High-Carbon Steel for Electroplating
B320 Practice for Preparation of Iron Castings for Electroplating
B322 Guide for Cleaning Metals Prior to Electroplating
B607 Specification for Autocatalytic Nickel Boron Coatings for Engineering Use
B650 Specification for Electrodeposited Engineering Chromium Coatings on Ferrous Substrates
B656 Guide for Autocatalytic (Electroless) Nickel-Phosphorus Deposition on Metals for Engineering Use (Discontinued 2000)
B689 Specification for Electroplated Engineering Nickel Coatings
B733 Specification for Autocatalytic (Electroless) Nickel-Phosphorus Coatings on Metal
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
E165 Practice for Liquid Penetrant Examination for General Industry
E709 Guide for Magnetic Particle Testing
Federal StandardsQQ-C-320 Chromium Plating (Electrodeposited)
Military StandardsMIL-STD-45662 Calibration System Requirements
SAE StandardsSAEJ1830 Size, Classification and Characteristics of Ceramic Shot for Peening
ICS Number Code 25.220.40 (Metallic coatings)
ASTM B851-04, Standard Specification for Automated Controlled Shot Peening of Metallic Articles Prior to Nickel, Autocatalytic Nickel, or Chromium Plating, or as Final Finish, ASTM International, West Conshohocken, PA, 2004, www.astm.orgBack to Top