springs, gears, shafts, con rods
Repeated stress makes parts exhausted.Shot peening increases fatigue strength.
What to shot-peen
Repeated stress makes parts exhausted.Shot peening increases fatigue strength.
Tensile stress at welded part causes SCC. Shot peening gives compressed stress to compensate and release tensile stress.
Friction surface gets worn out. Micro dimples formed through shot peening help reduce stress and wear.
Micro cracks lead to critical cracks. Shot peening seals micro cracks to increase mold durability.
Longer-lasting sharp edge derives from strength. Shot peening gives work hardening to increase durability.
Deburring/descaling by Ultra Fine Shot with a small diameter is effective for small parts.