Short answer: Shot peening bombards a part with small round shot so the surface yields in compression, creating a residual compressive layer that closes micro-cracks and can multiply fatigue life — essential for springs, gears, turbine blades and aircraft parts.
At a Glance
What Shot Peening Does
Each shot impact plastically deforms the surface, leaving a thin layer under residual compression. Because fatigue and stress-corrosion cracks start at the surface in tension, that compressive layer dramatically raises the safe load and life — the fatigue basis is in Metal Fatigue Endurance Limit and the SCC link in Stress Corrosion Cracking. It is a different job from Shot Blasting Vs Sandblasting, which only cleans and profiles the surface without inducing a beneficial stress state.
Media, Intensity and Coverage
Steel or ceramic round shot is thrown at controlled velocity; intensity (Almen strip) and coverage (percent of surface) are specified and measured, not guessed. Glass-bead peening gives a gentler finish plus mild strengthening; laser peening reaches deeper and more precisely for critical rotating parts. The process follows the same surface discipline as Metal Surface Treatment Guide and often follows Nitriding Vs Carburizing o Stress Relieving Vs Annealing for a combined effect.
Applications & Sourcing
Peening is specified for springs, gears, crankshafts, connecting rods, turbine and compressor blades, weld toes and landing-gear parts. HXSCO supplies the high-strength base material — Spring Steel Supplier strip, Alloy Steel Supplier bar, Titanium Supplier e Aluminum 7075 Properties forgings — and arranges peening to your Almen spec, with the material certificate per Mill Test Certificate Guide.
Get a Quote
Tell HXSCO your requirements and we will respond with a competitive quote and lead time.
Domande frequenti
Shot peening fires small round shot at a part so the surface compresses, creating a residual compressive layer that closes micro-cracks and greatly extends fatigue life.
Shot blasting cleans and profiles the surface; shot peening deliberately induces a beneficial compressive stress layer to improve fatigue and corrosion-fatigue resistance.
Yes. By putting the surface in compression, peening can multiply fatigue life for springs, gears, blades and other cyclic-load parts.
Yes. HXSCO supplies high-strength base material and arranges shot peening to Almen specification with mill certificates.
Strengthen Parts with HXSCO
HXSCO supplies springs, gears and high-strength stock and arranges shot peening to Almen specification with mill certificates. Send your part and spec for a quote.