Punching Process
Punching is an engineering process that involves the contouring of metal parts through the use of a press. During the process, a cutting tool is pressed onto the work piece to create the desired shape. Punching is used in the fabrication of a wide range of products, including blind rivets, couplings, and gears.
The process is described as a sheet metal forming process that involves the stretching and enlarging of a hole in the sheet metal. This hole can be round, oval, square, or other shapes. As the cutting tool is pressed onto the sheet metal, the metal is displaced outward creating a portion of the desired shape. This is known as blanking.
One advantage of the punching process is the time and cost savings associated with it. The operation can be performed quickly and efficiently, which reduces labor costs and production times. Additionally, the cutting tools used for the process are usually inexpensive, which further reduces the cost of production.
Punching can also be used to create a variety of different shapes and sizes. The process is versatile and can be used on a variety of materials, such as steel, aluminum, copper, brass, and stainless steel.
The punching process is further classified as a cold-forming process, which means that the work piece is not heated prior to the operation, but instead is formed at room temperature. The forces necessary to accomplish the operation remain low, reducing the risk of damage to the tools and the material. This also ensures that the desired shape and accuracy are achieved.
The process is more versatile than other typical cutting processes and is especially suitable for creating complicated shapes in small batches. Additionally, the process is well suited for creating large surfaces, as it creates minimal waste material and can work with varying thicknesses.
Punching also provides a good surface finish. This is accomplished by inducing any chips and debris generated during the operation out of the work piece and away from the cut surface. This reduces the risk of contamination, which helps to preserve the surface finish.
The punching process is an excellent choice for fabricators who are looking for a cost-effective solution for creating a wide range of shapes and sizes. The process is fast, efficient, and provides a good surface finish, making it an ideal solution for many applications.
