On-Site Shot Peening Training Program Topics

• Definition of shot peening
• Benefits of peening
• Origins of peening
• What peening does
• How peening works
• How part life is increased
• Definition of stress, including distinction between tension and compression
• Definition and explanation of stress corrosion cracking (SCC) failure
• How peening increases resistance to fatigue and corrosion failures
• Dimple geometry
• Compression zone beyond dimple size
• Peening Intensity and Almen strips
• Peening intensity proportional to sine of impingement angle
• Measuring intensity - generation and interpretation of saturation curves, with examples
• Intensity expressions and ranges. Intensity verification
• Almen strip precautions
• Peening parameters: Things that affect peening intensity
• Peening Coverage
• Coverage: Partial vs. full coverage, coverage inspection
• Surface finish
• Barber-pole coverage problems
• Specifications and standard practices
• Shot peen variables; shot size, shot velocity, air pressure, etc.
• Shot delivery methods
• Hole (internal) peening methods
• Corner peening damage
• Drawing note precautions
• Masking precautions
• Air management and quality issues
• Discussion of plating and other processes requiring prior peening
• Part shape effects
• Conventional and unconventional peening methods.
• Media types and media specification, maintenance and analysis
• Shot size and surface effects
• Audit preparation and benefits