The progressive die (also called continuous die) consists of multiple stations, each of which is associated in sequence.
The machining process completes a series of different stamping operations in one stroke of the press. After the completion of one stroke, the punch feeder moves the material forward according to a fixed step, so that multiple processes can be completed on one pair of molds, generally punching, blanking, bending, trimming and deep drawing, etc.
1. Progressive die is a multi-task die. It can include multiple processes such as punching, bending and drawing in a pair of molds, which has high productivity;
2. The progressive die operation is safe;
3. Easy to automate;
4. Can be produced by high speed punching;
5. It can reduce the punching, the area of the site, and reduce the transportation and warehouse occupation of the semi-finished products;
6. Parts with extremely high dimensional requirements should not be produced by progressive die.
1. The parts are small;
2. Large batch size;
3. The material is thin (like 0.08~2.5mm);
4. The material is softer;
5. The shape is more complicated;
6. Valuable metals are not suitable (low utilization);
7. The accuracy is too high (IT10 or below).
What is continuous die?
Continuous die means that the press uses a strip-shaped stamping material in one press stroke, and simultaneously performs a cold stamping die of multiple stamping processes on several molds with several different stations. Move once with a fixed distance until the product is finished.
Whether a stamped part adopts a multi-station continuous mode or not? We should consider the following aspects:(1) Design, fabrication and maintenance of continuous molds