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Does shot peening increase hardness?

Shot peening stands out as a pivotal process in enhancing material durability and performance across various industrial sectors. Unlike conventional blasting techniques that may employ both spherical and angular abrasives, shot peening exclusively utilizes spherical abrasives, showcasing a refined level of precision and control.

The mechanism behind shot peening involves the forceful impact of granules on the metal, inducing plastic deformation and compressive stress on the surface. This compression effectively counters any tensile stress, mitigating the risk of stress-induced cracking and enhancing the overall structural integrity of the component.

Studies have shown that shot peening can lead to remarkable improvements in component lifespan, with some reports indicating an increase of up to 1,300% in service life. By reducing tensile stress levels on the surface, shot peening significantly diminishes the likelihood of equipment fatigue, potentially extending operational longevity by as much as 560%. Critical machinery parts such as gearboxes, crankshafts, blast wheel blades, and other components experience enhanced durability and reliability in service.

shot peening hardness
Example of shot peening machine

Shot peening demands meticulous control over granule size distribution, ensuring optimal surface modification and performance. Advanced shot peening systems feature real-time monitoring and adjustment of abrasive volume and velocity, ensuring consistent and effective surface treatment. Additionally, precise control over blasting angles and distances enables tailored surface modifications to meet specific requirements.

The significance of shot peening extends across a diverse range of industries, including aerospace, automotive, and metalworking. In aerospace, shot peening enhances the durability of critical components such as turbine parts and landing gear. In the automotive sector, shot peening contributes to improved performance and longevity in components including springs, gears, and suspension arms. In metalworking, shot peening plays a vital role in enhancing the durability and performance of cutting tools, stamping dies, and forged components.

At CMV®, we specialize in delivering cutting-edge shot peening solutions tailored to meet the demands of modern industry. Our state-of-the-art equipment ensures superior performance, reliability, and cost-effectiveness, empowering businesses to achieve unparalleled levels of productivity and efficiency. Reach out to our team of experts today to explore how CMV® can elevate your operations to new heights of excellence.


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