Stamping is a process in which parts are created by applying compressive forces to the metal using presses and dies. This process is usually carried out with the help of a die that is mounted in a machine press, and the metal is forced into the die to create the desired shape.
The term “stamping” covers a wide range of processes, from simple operations that require only a few pieces of metal and a simple die to create a finished part, to complex processes involving several pieces of metal and multiple sets of dies that can create a variety of shapes and sizes. It is often used to make large-scale production runs of components that are used in many different products.
There are two main types of stamping dies: progressive dies and transfer dies. Progressive dies are typically used when making large-scale production lots of parts, as they feature several stations that allow the raw material to be progressively formed into the desired part geometry. Transfer dies are more typically used for smaller-scale production runs, as they remove the need for additional equipment to be repeatedly set up and adjusted.
Blanking is a type of stamping process that involves cutting the desired shape from a sheet of metal. This can be done with traditional stamping methods such as punching, or with more advanced technologies such as laser cutting or water jet cutting. This process is commonly used as the starting point for other stamping processes, such as drawing, which involves drawing a desired shape from the blanked material using a die.
Forming is another type of stamping process that involves bending and shaping the metal into the desired shape. This process is usually accomplished by feeding a sheet of metal into a press and then using a series of dies to bend and shape the metal into the desired part geometry. This type of process is often used to create parts such as brackets, flanges, and frames.
Piercing is a third type of stamping process that involves punching a hole or notch into the metal. This can be done with a variety of tools such as a drill, punch, and die, or with more advanced technologies such as laser cutting. This process is often used when parts need to be joined together, such as in the assembly of automotive components.
Each of these stamping processes has unique advantages and disadvantages, and the type of process chosen should take into consideration factors such as the type of material being stamped, the complexity of the part, the production volume and time frame, and the desired cost. By understanding the different types of stamping processes, businesses can better determine which process is best for their application.
