Shot peening is a cold-working process in which a metal part is bombarded by tiny balls of steel, cut-wire, glass or ceramic shot. Although shot peening is often confused with abrasive blasting, the two processes have very different effects. Abrasive blasting is used primarily to rid metals of corrosion and rust, while shot peening is used to work-harden metal and to increase its fatigue strength.

Although simple in concept, shot peening has become quite technical in recent years. Different shot types (grade, type, hardness, and shape), varying impact angles, intensities, velocities, nozzle-diameters, peening-times, the type of material and the surface coverage can all affect the end-physical properties of the peened metal.

Superior Shot Peening has over 50 years of experience, and have peened almost every commercial metal known to man including exotic metals such as hastaloy, titanium and zirconium. Our plant is equipped with automatically controlled shot peening machines that are capable of processing parts of different shapes and sizes with consistent and unerring results. Our mobile crews are equipped with similar, portable machines and can do work almost anywhere in the world.

Whether done in-house or in the field, Superior Shot Peening adheres to military specification MIL-S-13165C when performing most shot peening services. However, more stringent customer-specified standards are easily accommodated. We are capable of handling custom shot peening jobs of all types from the very large to the very small and are experienced working under a variety of difficult conditions.

We pride ourselves on our superior quality control methods and are able to offer a choice of several quality control tests to our customers. Florescent dye penetrant per MIL-S-16561C, visible dye check, almen strips and 10X magnification inspections can be used individually or in combination per customer specification. Our test equipment is calibrated to military standard MIL-STD-45662A and is traceable to the National Institute of Standards and Technology. A certificate of compliance is issued with each order.

For more about shot peening, select one of the following:

Overview  |  Technical Information  |  Photographs

For more information about Shot Peening, or other treatments offered by Superior Shot Peening, click on one of the following:

• Shot Peening
  
  
  • Overview
    
    
  • Technical Information
    
    
  • Photographs
    
    
• Esonix UIT
  
  
• Phosphatizing
  
  
• Salt Bath Heat Treating
  
  
• Passivation
  
  
• Abrasive Blasting and Deburring
  
  
• Special Refurbishing Processes