A progressive die, also known as a multi-station progressive die, a continuous die, or a skip-step die, is a die in which the stamping part to be processed is divided into a number of equidistant stations, and one or more basic stamping processes are set up at each station to complete the processing of a certain part of the stamping part. The material to be processed is machined in advance into strips of a certain width, which are fed one step at a time using a certain feeding method. After punching at each station, a complete stamped part is obtained. In a progressive die, no matter how complex the shape of the stamped part is and how many stamping processes there are, the stamping can be completed with a single progressive die.
At present, the use of progressive die is quite wide, it can process a variety of materials, such as stainless steel, aluminum, carbon steel, copper, and other metal materials. The materials used for the progressive die are long strips of sheet material, which can be cut into strips when the material is thick and the production batch is small, and coils when the production batch is large. Coil material can be automatically fed and automatically collected, and can be automatically stamped by a high-speed punching machine. The progressive die has strict requirements on the thickness and width of the material. If the width is too large, the material will not be able to enter the guide plate of the die or will not pass smoothly; if the width is too small, it will affect the positioning accuracy and will easily damage the side edges, convex die, and other parts.
There are many advantages of progressive die in blanking.
1. High production efficiency: multiple processes such as punching, bending, stretching, and forming can be completed simultaneously in different stations of the same die, which has a higher working efficiency than other types of dies and is suitable for mass production processing.
2. High product quality: The progressive die can complete the whole working procedure by one positioning, so the stamping parts produced are highly accurate.
3. Easy operation: The processing of progressive die is more automatic and less difficult to operate.
4. Improved labor productivity and equipment utilization: some small and complex parts can hardly be produced without the use of a progressive die.
5. High safety: When operating, there is no need to reach inside the equipment, which improves the safety of the operator.
6. Long life: Its mechanism is more solid and can withstand a variety of external forces, which can be well adapted to strict processing conditions.
As a result, we usually make the progressive die to speed up production when the quantity is huge.
