Shot Peening

Shot Peening


Shot peening is a surface treatment technique widely used in various industries to improve the mechanical properties of materials. It involves bombarding the surface of a component with small spherical particles, called shot, to induce compressive stresses and enhance the material’s resistance to fatigue and stress corrosion cracking.


The shot peening process consists of several key steps:

  1. Cleaning: Prior to peening, the component is thoroughly cleaned to remove any contaminants that could interfere with the peening process.
  2. Masking: Certain areas of the component may need to be masked to protect them from the peening action.
  3. Media Selection: The appropriate shot material and size are selected based on the specific requirements of the component and the desired surface finish.
  4. Peening: The component is subjected to multiple impacts from the shot particles, which create small, controlled indentations on the surface.
  5. Inspection: After peening, the component undergoes inspection to ensure that the desired compressive stress profile has been achieved.
  6. Finishing: If necessary, the surface may be further treated to remove any residual shot particles and improve the overall appearance.

Benefits of Shot Peening

Shot peening offers several advantages, including:

  • Increased Fatigue Life: Shot peening induces compressive stresses that counteract tensile stresses, thereby improving the component’s resistance to fatigue failure.
  • Enhanced Strength: The surface layer of the component undergoes work hardening, resulting in increased strength and hardness.
  • Stress Relief: Shot peening can relieve residual stresses that may have been introduced during previous manufacturing processes.
  • Improved Resistance to Stress Corrosion Cracking: The compressive stresses introduced by shot peening reduce the susceptibility of the material to stress corrosion cracking.
  • Surface Texture Modification: Shot peening can be used to produce specific surface textures for improved lubrication, better adhesion, or aesthetic purposes.


Shot peening is utilized in various industries, including:

  1. Aerospace: Shot peening is used in the aerospace industry to enhance the fatigue life and performance of critical components, such as turbine blades and landing gears.
  2. Automotive: Shot peening is applied to automotive components to increase their durability and resistance to fatigue, such as engine crankshafts and suspension parts.
  3. Power Generation: Gas and steam turbine components, as well as nuclear power plant equipment, often undergo shot peening to improve their resistance to fatigue and stress corrosion cracking.
  4. Manufacturing: Shot peening is used in general manufacturing processes to enhance the properties of various metal components, including gears, springs, and shafts.

Shot Peening Image


Shot peening is a valuable surface treatment technique that can significantly improve the mechanical properties and performance of materials. By introducing compressive stresses, shot peening enhances fatigue life, strength, and resistance to stress corrosion cracking. Its wide range of applications in industries such as aerospace, automotive, power generation, and manufacturing highlights its effectiveness in ensuring the longevity and reliability of critical components.

Our company specializes in the production and sale of various types of gears, including spur gears, helical gears, bevel gears, worm gears, and more. With years of experience and expertise in the industry, we have established ourselves as a leading gear manufacturer. Here are six key advantages of choosing our company:

1. High Quality

Our gears are manufactured using the finest materials and undergo rigorous quality control measures. We ensure that each gear meets the highest standards of durability, precision, and performance.

2. Wide Range of Options

We offer a diverse range of gears to cater to different applications and requirements. From small gears to large industrial gears, we have the capability to produce gears in various sizes, shapes, and specifications.

3. Customization

We understand that every customer has unique needs. That’s why we provide tailor-made gear solutions to meet specific requirements. Our team of experts works closely with clients to design and manufacture gears according to their exact specifications.

4. Competitive Pricing

We believe in offering high-quality gears at competitive prices. Our efficient manufacturing processes and economies of scale allow us to provide cost-effective solutions without compromising on quality.

5. Timely Delivery

We understand the importance of meeting deadlines. With our streamlined production processes and efficient logistics, we ensure that our gears are delivered on time, every time.

6. Exceptional Customer Service

We prioritize customer satisfaction and provide excellent customer service. Our knowledgeable and friendly staff are always ready to assist customers with any inquiries or technical support they may need.

The Birth of a Gear

Creating a gear involves a series of steps and processes. Here is a breakdown of the journey a gear takes from concept to completion:

1. Design and Engineering

The first step is to design the gear, taking into account factors such as load, speed, and application. Our experienced engineers utilize advanced software and tools to create precise gear designs.

2. Material Selection

Choosing the right material is crucial for the performance and longevity of the gear. We carefully select materials with the required strength, hardness, and other properties to ensure optimal gear performance.

3. Machining and Forming

The gear design is translated into manufacturing instructions, and the gear is machined or formed from the chosen material. Our state-of-the-art machinery and skilled operators ensure the highest level of accuracy and consistency.

4. Heat Treatment

Heat treatment is performed to enhance the mechanical properties of the gear, such as hardness and toughness. This process ensures that the gear can withstand the demands of its intended application.

5. Finishing and Inspection

The gear undergoes finishing processes, such as grinding or polishing, to achieve the required surface finish. It is then thoroughly inspected using advanced measuring equipment to verify its dimensional accuracy and quality.

Partner with Us

By choosing our company as your gear supplier, you can expect top-notch quality, customization options, competitive pricing, timely delivery, and exceptional customer service. Let us be your trusted partner in providing reliable and high-performing gears for your specific needs.

Author: Miya