Shot Pinning Process

In Shot pinning, hard metallic balls are shot at high speed all over the exposed surfaces of the component by keeping the component at an enclosed chamber. The same metallic balls are sucked back and recalculated again and again. The repeated beatings by the hard balls make the surface smoother. The main purpose of this process is to relieve the stresses and to clean up the surfaces.

Fig.1: Shot Pinning Process

Advantages:

–      Good fatigue strength

–      Case porosity reduction

Disadvantages:

–      High equipment costs.

–      The process must be precisely controlled to achieve the desired results,

Ideal applications: Casting components are normally shot blasted to clean it up.

Shibashis Ghosh

Hi, I am Shibashis, a blogger by passion and engineer by profession. I have written most of the articles for mechGuru.com. For more than a decades i am closely associated with the engineering design/manufacturing simulation technologies.
Disclaimer: I work for Altair. mechGuru.com is my personal blog. Although i have tried to put my neutral opinion while writing about different competitor's technologies, still i would like you to read the articles by keeping my background in mind.

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