Exploring the Different Types of Springs and Their Applications in CNC Machining(properties bronze Ron)

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Springs play a crucial role in various industries, including CNC machining. They are indispensable components that provide essential functions like storing and releasing energy, absorbing shocks, maintaining tension, and controlling movements. In this article, we will delve into the world of different spring types commonly used in CNC machining processes, highlighting their characteristics, applications, and manufacturing techniques.

1. Compression Springs:
Compression springs are fundamental coil-shaped springs widely utilized in CNC machining operations. These springs store mechanical energy when compressed and release it when the force is removed, providing resistance against compression. The design factors that affect compression springs include wire diameter, number of coils, pitch, and material choice. Industries employ them in valves, automotive suspensions, and pressing machines due to their ability to absorb impact forces effectively.

2. Extension Springs:
Extension springs, also known as tension springs, work oppositely to compression springs. Instead of resisting compression, they generate force by extending or stretching apart. Installing extension springs across two points allows for the pulling together of components or providing balance and support. Common applications involve garage doors, trampolines, farm equipment, and numerous industrial machinery systems.

3. Torsion Springs:
Torsion springs differ from compression and extension springs because they apply torque rather than linear force. When twisted or rotated around an axis, these helical springs store mechanical energy proportional to the amount of twist applied. Clocks, clothespins, and even mouse traps possess torsion springs serving vital roles. CNC machining enables precise production of torsion springs by carefully selecting materials and determining the optimal wire size and pitch.

4. Constant Force Springs:
Constant force springs have unique properties making them suitable for specific applications requiring consistent forces over extended periods. By tightly winding strips of steel onto a drum, constant force springs exert near-constant force throughout their entire extension range. These springs find utility in equipment like doors, cables, and various retractable components utilized during CNC machining processes.

5. Belleville Washers:
Belleville washers, also known as disc springs or conical spring washers, are capable of withstanding high loads and providing controlled pressure by exerting a continuous radial force. Used primarily for their ability to maintain tension under dynamic axial loading, these springs are perfect for applications involving ball bearings, valve assemblies, and disk brakes. The precise manufacturing process of belleville washers includes laser cutting, stamping, and heat treatment before assembly into finished products.


Springs are crucial elements within the realm of CNC machining, enabling efficient functioning of machines and ensuring optimal performance across industries worldwide. Understanding the different types of springs and their applications allows manufacturers and CNC machining experts to select the most appropriate spring for specific requirements. Whether it's compression springs absorbing impact forces, extension springs balancing components, torsion springs applying rotational force, constant force springs maintaining consistent pressure, or belleville washers managing differential loads - each type holds its own significance. In CNC machining, precision production techniques based on material selection, wire sizing, pitch determination, and meticulous assembly enable the creation of reliable and durable springs that facilitate seamless operation throughout countless applications. CNC Milling CNC Machining