What is Swaging? Process Types and Applications

Swaging is a process of reducing the diameter of a metal rod or tube by forging it using a die. The die has a smaller diameter than the original rod or tube, and the metal is squeezed into the die using a hydraulic press or hammer. This causes the metal to be deformed and the diameter to be reduced.
Swaging is commonly used in the manufacture of parts such as pins, rivets, and bolts, where a smaller diameter is required. It is also used in the production of tubing and pipes, where the inside diameter needs to be reduced.
There are different types of swaging processes, including:
1. Hot swaging: This process involves heating the metal before forging it into the die. This allows for easier deformation of the metal and can result in a more precise reduction in diameter.
2. Cold swaging: This process involves forging the metal at room temperature. This is typically used for softer metals that cannot withstand the high temperatures required for hot swaging.
3. Rotary swaging: This process involves rotating the die while forging the metal, which helps to distribute the force evenly and reduce the risk of cracking or deformation.
4. Progressive swaging: This process involves forging the metal in a series of stages, each stage reducing the diameter by a small amount. This allows for more precise control over the final diameter and can result in a more consistent product.