MORE ABOUT SHOT PEENING:
- The effects of Shot Peening
- The effects of residual compressive stress
- How is Shot Peening intensity measured?
- What determines steel shot size?
- The importance of shot coverage
- The importance of operating
mix/direction of shot pattern - Advantages of wire mesh belts
- Benefits of variable speed control
Shot Peening
WHAT IS SHOT PEENING?
Shot Peening is primarily used to increase fatigue life by bombarding the surface of the part with small spheres of uniform media that induce compressive stresses. The Shotpeen Process is similar to repeatedly and evenly hammering a surface with a ball peen hammer.
Shot peening is used primarily to prevent fatigue failures that originate on the surface of a part. Small indentations or dimples form on the surface, and the metal immediately below those indentations tries to resist further compression, creating what’s known as residual compressive stress. Fatigue cracks generally will not initiate in a compressively stressed area, so part life is extended.
Shotpeening is different than Shot Blasting, which is a surface finishing technique that involves rapidly impacting the surface of an object with a controlled stream of abrasive material.
FLEXIBLE, VERSATILE SHOT PEENING SYSTEMS
Our Shot Peening Systems use blast wheels to offer a high level of flexibility and process reliability, especially for larger series and larger workpieces such as:
- leaf springs
- air-suspension beams
- coil springs
- wheels
- gear parts, cams and camshafts
- connecting rods
- crankshafts
- gearwheels
- turbine blades
CONSISTENCY, REPEATABILITY & UNIFORMITY
We maintain consistency, repeatability and uniformity on each part by incorporating several controls in our Shot Peen Services:
- Pass-through wire mesh machines allow coverage on both the tension and compression sides of a spring, which could provide a significant improvement in fatigue life.
- Variable speed control allows us to increase intensity levels and improve consistency.
- Controlling our shot media operating mix with a shot media screen test.
- To ensure we maintain the correct Intensity, Almen Strip Tests are performed.
- We control the direction of the peening pattern to provide the greatest efficiency.
Saran Industries has over 40 years of surface preparation experience, with highly skilled quality and engineering specialists on staff. Our comprehensive preventative maintenance system ensures that our equipment performs efficiently to meet your specifications. We conform to all applicable SAE standards, and are ISO9001:2000 certified.
