Shot Peening Service

Shot peening is a cold working process used to create a layer of compressive residual stress and change the mechanical properties of metals. It requires pellets (round metal, glass or ceramic particles) to impact the surface with sufficient force to produce plastic deformation.

Shot peening usually uses an air shot blasting system or a centrifugal shot blaster. Air shot peening systems use high-pressure air to blast the workpiece through a nozzle. The centrifugal shot blasting machine uses a high-speed paddle wheel to determine the release time of the medium by adjusting the inlet position of the medium, thereby using centrifugal force to push the reinforced medium. Other strengthening methods include ultrasonic strengthening, wet strengthening and laser strengthening without the use of media.

Peening processes can encompass a wide range of techniques depending on the energy employed to project the media or create an impact or shock wave:

• Air Shot Peening
• Cavitation Peening or Water Jet Peening
• Centrifugal Wheel Shot Peening
• Hammer Peening
• Laser Ablation Peening
• Peen Marking
• Powder Impact Plating (PIP)
• Rotary Flap Peening
• Shot Peen Forming
• Ultrasonic Needle Peening (UNP) or Ultrasonic Impact Treatment (UIT)
• Ultrasonic Shot Peening
• Water or Wet Shot Peening

STEMart provides comprehensive short peening services to solve your problems in production and research and meet relevant regulations and international standards, thus improving the quality and performance of your products.

Applications

Shot peening is used on gear parts, cams and camshafts, clutch springs, coil springs, connecting rods, crankshafts, gearwheels, leaf and suspension springs, rock drills, and turbine blades.

For more information about our short peening services and equipment, please contact us.