Description / Abstract:
Purpose
This specification establishes the requirements for computer
monitored shot peening of part surfaces by impingement of media,
including metallic, glass, or ceramic shot. Computer monitored
peening is intended to provide a method of process observation,
traceability, and response for all process input settings, in real
time, during the entire peening process to ensure with objective
evidence, the desired process outputs. Shot peening in accordance
with AMS2432 meets or exceeds the requirements of AMS2430.
Related peening processes, such as tumble peening, slurry
peening, manual peening, peen forming and straightening, peening
for prevention of intergranular corrosion, and peening to produce a
surface texture, are beyond the scope of this
specification.Purpose
Application
Shot peening is typically used to induce residual compressive
stress in the surface layers of parts, and may be used to increase
fatigue strength and resistance to stress-corrosion cracking. Shot
peening with computer monitoring is typically used to provide
control of the peening process to ensure consistent, repetitive
peening coverage and intensity on parts. Computer monitored
processing is typically required so that the traceability steps
specified herein can be utilized by the design authority to take
full credit for the benefits of shot peening in the design
life.