Shot Peening Will Increase the Life of Your Parts


Strength and performance matter when it comes to the integrity of parts and components. Through the process of shot peening, the service life of a component can be extended by increasing resistance to fatigue. By understanding how shot peening works, and why it is used, you can make smarter decisions when it comes to manufacturing.

First off, shot peening is a cold work process used to finish metal parts, which modifies mechanical properties to increase strength and reduce stress. The process works by striking a surface with round metallic, glass or ceramic particles, using enough force to generate plastic deformation. As a group of shots impact the surface, many indentations are made, causing the component to be encased by a compressed stressed layer on the surface.

The process of shot peening is also one of the most efficient and economical methods of strengthening your parts. It is also used to improve wear characteristics, straightening distortions, surface texturing, and for creating aerodynamic curvatures. Using lighter-weight parts is possible through shot peening, especially where high wear or fatigue might be an issue.

There are differences between shot peening and shot blasting. Shot blasting is used to modify a component’s surface using abrasion. Through use of abrasive particles, a rough surface can be smoothed, a smooth surface can be roughened, or a surface can be shaped. Shot peening focuses on improving the surface through compressive stress.

Even in complex parts, shot peening can improve strength and fatigue resistance. While it may be extremely useful in some applications, others may see it as a limitation, as it may distort close tolerance parts. 

Many industries can reap the benefits of shot peening, including medical, aerospace and automotive. Whatever your application needs, allow Mid-West Spring and Stamping to help find the right spring for the job. As a premier custom springs manufacturer, we craft compression springs in a variety of compression types, shapes, and materials to your individual specifications.

Mid-West Spring and Stamping is committed to creating more value for our customers with fewer resources through continuous improvement and the elimination of waste. Join the multitudes of customers that rely on us to optimize the fit, form, and function for their desired outcomes at a competitive cost. Request a quote today, or call us at 800-424-0244.