What is a torsion spring? What are the properties of torsion springs?
A torsion spring, also known as a twisting spring, is a type of mechanical component designed to store and release rotational energy. Unlike traditional compression or extension springs, a torsion spring works by applying torque, meaning it resists rotational forces rather than linear ones. It is typically made from a coiled wire that is twisted around an axis, allowing it to exert force when rotated. This type of spring operates based on the principle of leverage, using the elasticity of the material to generate significant mechanical power through twisting or rotation. Torsion springs are commonly used in applications where controlled rotational movement is required. Their design often involves circular coils that either wrap around each other or are spaced apart, depending on the intended function. The ends of the spring are usually shaped into arms or legs, which can be bent or twisted in various configurations—ranging from simple single twists to more complex double twists or custom-shaped torsion bars. These variations allow for tailored performance based on specific engineering needs. Due to their versatility and strength, torsion springs are widely used in a variety of industries, including automotive systems (like hood hinges and trunk lids), machinery, household appliances, and even in toys and small electronic devices. They play a crucial role in balancing mechanisms, providing smooth and consistent resistance during rotation. Whether it's a door closing mechanism, a clothes dryer drum, or a mechanical clock, torsion springs are essential components that ensure efficient and reliable operation.

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