Gears Peening Automotive parts

Shot Peening & Finishing

Global Expertise in Shot Peening Services

Surface treatment across industries

At Winoa, we are proud to offer industry-leading shot peening services across our global network of technology centers. Our commitment to excellence in surface treatment is evident in every project we undertake, providing bespoke solutions for a wide range of industrial applications.

Peening media category

Winoa-2Effe: A Specialized Center for Shot Peening Excellence

Combining Expertise with Technology

In addition to our global capabilities, we spotlight our Winoa-2Effe center in Maharashtra, India. This joint venture uniquely focuses on delivering advanced shot peening solutions with the combined expertise of Winoa and 2Effe Engineering.

Winoa-2Effe peening center India

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Key Peening Applications & Processes


At the heart of efficiency and product longevity, our peening solutions play a pivotal role across various stages of our clients’ cycles:

  • Enhanced Durability for Critical Components : Utilizing peening in the automotive, aerospace, and heavy machinery sectors to significantly increase resistance to fatigue, wear, and corrosion.
  • Innovative applications in Medical and Tech Industries : Leveraging peening in the production of medical implants and high-tech components, where precision and material integrity are paramount.
  • Precision in Manufacturing and Fabrication : Applying peening in manufacturing processes for precise component shaping and stress profiling, ensuring superior quality and performance.
  • Optimization of Tooling and Equipment : Implementing peening in tool and die making, enhancing the lifespan and durability of molds, dies, and other critical tooling components.
  • Surface Treatment for Structural Integrity : Employing peening in construction and infrastructure projects, fortifying structural elements against environmental stressors and operational wear.

Each application of our peening technology service is a testament to our commitment to quality, innovation, and the advancement of industrial standards.

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Whether you’re looking for specialized shot peening services at Winoa-2Effe or elsewhere in our global network, our expert team is ready to assist you. Connect with us to discuss how we can enhance the performance and durability of your components.

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Our Shot Peening Capabilities

Peening services

Shot peening is a vital process in enhancing the fatigue strength and lifespan of metal components. Our services are integral to industries such as aerospace, automotive, energy, and more. Here’s what we offer:

Shot-peening by air-blasting on transmission component.


Shot-peening technology is widely used in major industries like automotive, aerospace and power generation to improve fatigue performances of cyclically loaded components.

The shot-peening consists into hammering the surface of mechanical components with hard shot to induce compressive residual stresses into the surface layer. Hard shot can be of different nature depending on the considered substrate: cast steel shot, cut wire shot, ceramic beads, glass beads…

Process parameters (shot type, coverage rate, impact velocity and angle) need to be carefully selected to reach the targeted performances and not damage the components.

Transmission component in a X-rays diffractometer


X-rays diffraction is a non-destructive method used to assess residuals stresses at the surface of mechanical components after shot-peening treatment. It can also be used to measure depth-distribution of residual stresses (up to 2000 µm deep) when coupled with electro-erosion process. In this case it becomes a destructive method.

The concept behind this technique is to measure the diffraction pattern (= angular position of the diffraction peaks) obtained when X-rays interact with the atomic structure of the metallic crystals of a component. From the position of the diffraction peaks, we can use the well-known Bragg’s law to calculate the distance between the atoms within a crystal. This distance being proportional with applied stress, we can deduct the amount of residual stresses in this crystal.


Vibratory finishing is a type of mass finishing manufacturing process used to deburr, descale, burnish or polish large numbers of complex-shape workpieces.

In this batch-type operation, specially shaped pellets of media and the workpieces are placed into the tub of a vibratory tumbler. The tub of the vibratory tumbler and all its contents are then vibrated. The vibratory action causes the media to rub against the workpieces which yield the desired result. Depending on the application this can be either a dry or wet process.

Unlike rotary tumbling this process can finish internal features, such as holes. It is also quicker and quieter. The process is performed in an open tub so the operator can easily observe if the required finish has been obtained.

Vibratory finishing can be used after shot peening to obtain a mirror finish and further enhance the fatigue performances of the components.

Expert Answers to Your Queries


Shot peening is a surface treatment process where small spherical media, known as shot, bombard the surface of a component. This process creates compressive residual stresses, which significantly improve the fatigue life and resistance to stress-corrosion cracking of the component.

Shot peening is versatile and can be applied to a wide range of metals, including steel, aluminum, and titanium. The process parameters are carefully adjusted based on the metal type to ensure optimal results without damaging the component.

X-ray diffraction is a non-destructive testing method used to measure residual stresses and structural changes in materials. In shot peening, it’s crucial for verifying the effectiveness of the process and ensuring the integrity of the treated components.

Absolutely. Shot peening is widely used in the aerospace and automotive industries to enhance the durability and lifespan of critical components like gears, springs, and turbine blades. But many Industrial applications can benefit from this technology.