Spiral Wound Torsion Spring: A Complete Guide

Spiral wound torsion springs are a type of spring that operates by twisting around its axis. These springs are commonly used in a variety of applications, including automotive, aerospace, medical, and industrial machinery. In this article, we will provide a complete guide to spiral wound torsion springs, including their design, materials, and applications.

Design of Spiral Wound Torsion Springs

Spiral wound torsion springs are typically made from round wire and are wound in a spiral shape around a mandrel. The spring is designed to resist the twisting force applied to it, and it is essential that the wire is wound tightly and evenly to ensure consistent performance.

The ends of the spring are usually straight and are often used to attach the spring to the application. The end type can vary depending on the application, with common options including straight, tangential, or double torsion ends. The end type can also determine the direction of the spring\’s torque.

Materials Used in Spiral Wound Torsion Springs

Spiral wound torsion springs can be made from a range of materials depending on the requirements of the application. Some of the most common materials include:

1. High Carbon Steel – This material is commonly used for its high strength and durability. It is ideal for applications where the spring will be subjected to high stress or where it will need to withstand repeated cycles of compression and relaxation.

2. Stainless Steel – Stainless steel is often used for its resistance to corrosion and high temperatures. It is also an excellent choice for applications that require high strength and durability.

3. Phosphor Bronze – Phosphor bronze is a copper alloy that is often used for its excellent corrosion resistance and electrical conductivity. It is an ideal material for applications where the spring will be exposed to harsh environments.

4. Beryllium Copper – This material is known for its high strength and excellent fatigue resistance. It is often used in applications where the spring will be subjected to high stress or where it will need to withstand frequent cycles of compression and relaxation.

Applications of Spiral Wound Torsion Springs

Spiral wound torsion springs are used in a variety of applications, including:

1. Automotive – Spiral wound torsion springs are commonly used in automotive applications, including suspension systems, seatbelt systems, and brake systems.

2. Aerospace – Spiral wound torsion springs are used in aerospace applications, including landing gear systems and control surfaces.

3. Medical – Spiral wound torsion springs are used in medical applications, including surgical instruments and implantable devices.

4. Industrial Machinery – Spiral wound torsion springs are used in a variety of industrial machinery applications, including valves, pumps, and actuators.

Conclusion

In conclusion, spiral wound torsion springs are an essential component in many different applications. They are designed to resist the twisting force applied to them and can be made from a range of materials depending on the requirements of the application. Common applications include automotive, aerospace, medical, and industrial machinery. When designing or selecting a spiral wound torsion spring, it is essential to consider the material, end type, and torque direction to ensure that it will perform as required in the application.