The stamping parts have light weight, thin thickness and good rigidity. The size tolerance is guaranteed by the die, so the quality is stable and it is not necessary to use mechanical cutting. The metal structure and mechanical properties of cold stamping parts are better than those of original billets, and the surface is smooth and beautiful. The tolerance grade and surface state of cold stamping parts are better than those of hot stamping parts.
Large number of medium and small parts stamping production usually adopts compound mold or multi station continuous die. In modern high-speed multi station press center configuration with uncoiling, correction, product collection and delivery and mold base and quick die change device, and use the computer program control, automatic punching production line can be composed of high productivity. With the new mould material and various surface treatment technology, the die structure can be improved, and the stamping die with high precision and long service life can be obtained, so as to improve the quality of stamping parts and reduce the manufacturing cost of hardware stamping parts.
Stamping production technology and equipment is developing unceasingly, in addition to the traditional use of the press and steel die stamping parts manufacturing, hydroforming and spinning forming, superplastic forming, explosive forming, electric water formingelectromagnetic forming a variety of special stampingtechnology is also developing rapidly, the technology level of stamping has been raised to a new the height of the. The special stamping forming technology is especially suitable for the production of small and medium batch (or even dozens of parts) of many varieties. For general stamping process, simple mould, low melting point alloy mould, group mould and stamping flexible manufacturing system can be used to organize the stamping of multi medium and small quantity parts.
In short, stamping has high productivity, low processing costs, high utilization of materials, simple operation, easy to realize mechanization and automation and a series of advantages. The composite structure, such as stamping and welding, bonding and other parts, is adopted to make the structure of parts more reasonable and more convenient to process. Therefore, more complicated die casting structures can be produced with simpler technology.
