The Effects Of Shot Peening On Metal Corrosion

There are many ways of hardening material, and one of them is shot peening (in german, this is called kugelstrahlen). This is similar to sandblasting except for the fact that shot peening uses spherical steel balls while sandblasting uses abrasive particles, such as sand or grit. While sandblasting is known to remove material from the surface of the workpiece, shot peening does not. In this method, small spherical steel balls are hurled at high velocity toward the surface of the workpiece. This is akin to hitting a piece of metal with a ball peen hammer many times. The result is a stronger material with superior qualities. Engine components, such as camshafts, valves, con rods, and crankshafts usually go through the process of shot peening to enhance their strength. 

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Corrosion of Shot Peened Metals

When metals are exposed to stress and fatigue, they usually wear out fast due to corrosion. Corosion analysis has shown that shot peening improves the ability of a material to withstand corrosion when exposed to stress and fatigue. Any component that is at risk of getting corroded as a result of stress and fatigue should be shot-peened to improve its corrosion resistance characteristics. 

It's important to also note that in addition to improving the corrosion resistance of metals, shot peening also improves mechanical resistance and oxidation resistance. Oxidation of ferritic metals usually results in rusting. This is one of the main causes of the corrosion of metals. Shot peening can help to improve the oxidation resistance of metals and prevent metallic parts from rusting. 

As you can see, shot peening has a wide range of benefits. The process is widely used in the auto industry as well as the aircraft manufacturing industry. However, there are many shot peening workshops spread out across the country, so anyone who needs to improve the strength and corrosion resistance of material should look for a suitable shot peening workshop.

What to Consider When Searching for a Shot Peening Workshop

i) Experience

You must compare the experiences of the top-ranked service providers and give special consideration to the most experienced service provider. Ideally, you should not be in a rush to decide because you would like to work with the most experienced firm. 

ii) Reputation

You must read reviews and check ratings to learn about the reputation of the top-rated service providers. Firms with the highest number of positive reviews, testimonials, and high ratings should be accorded special consideration. Before you make a decision, therefore, you have to spend some time reading reviews and testimonials before committing yourself. 

iii) Cost

A comparison of the estimates quoted by different firms must be done. This is because you are looking for affordable services. By asking all the firms on your list to give you their quotes, it will be possible for you to identify the most affordable shot peening company in the city.


When outsourcing shot peening services, you should know that there is always the risk of damage to your workpieces. Therefore, you should only work with firms that offer different types of guarantees, including a customer satisfaction guarantee.