Rolling of Threaded Parts
Rolling is a metal forming process by which a thicker workpiece is reduced in thickness, usually by passing it through a pair of heavier rolls. With the development of sophisticated machinery, rolling has become one of the most commonly used processes for both mass production and prototyping. In this process, the threaded part is made using special rollers, which is then cut to the desired shape and size.
To begin the rolling process, the workpiece that is to be rolled must be preheated. This is done to reduce internal stresses and make the material more malleable for rolling. The parts are then placed between the rollers, which rotate in opposite directions, forcing the material to roll against the rollers. Depending on the size and shape of the part, the rollers may move at different speeds or in different directions. As the material passes through the rollers, the pressure exerted on it deforms the part into its desired shape.
Threaded parts can be made with three different types of rolling processes. The first involves plain rolling, which is often used for making threaded parts of a small diameter. The second type is called fluting rolling, in which a set of flutes is cut into the thread portion of the part. This gives it a spiral-like shape, which is useful for holding nuts or screws in place. The third type is known as progressive rolling and is used for making parts with an intricate pattern.
After the threaded part has been rolled and cut to size, it is ready for the next step in the process – heat treatment. This is used to improve the hardness, strength, and durability of the part. Depending on the material and intended use, the heat treatment can involve heating the part to a certain temperature, quenching it in oil, or providing it with a special coating.
Threaded parts are important components in many industries, such as manufacturing, automotive, and aviation. In addition to making them with rolling, they can also be machined, forged, or cast. Each type of process has its advantages and disadvantages, so it is important to select the right one for the application at hand.
Rolling threaded parts is a common process and can be used to produce parts of various shapes, sizes, and patterns. The steps involved are relatively simple, and the results are often high quality. As such, it is a great choice for many applications.
