Second, bending: the stamping process of forming a certain angle and shape of the sheet along the bending line.
3. Deep drawing: the stamping process of turning a flat plate into a hollow part with various openings or further changing the shape and size of the hollow part.
Fourth, local forming: changing the blank or stamping with various local deformation.
Although there are five processes, these process steps are not always used in the production of each part, nor are they operated in a single order. That is to say, in this process, it may be stretching first, then punching and then shaping, or stretching first, then shaping and then punching. The specific process sequence depends on the requirements of parts, and the benefits of closed stamping are obvious.
One or several products (parts) are fixed on the assembly line, and the production process is continuous; The working positions on the assembly line are arranged in the order of product processing. Only one or several working procedures are fixed in each workplace, and the degree of specialization is high.
The assembly line produces according to a unified beat (the so-called beat is the time interval before and after two identical products are produced on the assembly line); The production capacity of the last station on the assembly line is balanced and proportional, and the processing time of each process is equal to the beat or multiple of the beat; The assembly line is equipped with special conveying devices, and the products move along the one-way transportation route.
Stable product variety is a long-term need of society; The product structure is advanced, the design is finalized, the product is standardized, and it has good structural manufacturability.
Raw materials and cooperative parts are standardized and can be supplied on time; Machinery and equipment can always be in good condition, and a planned pre-repair system is implemented; The work of each production link can reach the working quality standard stably, and the product inspection can be carried out on the assembly line with the production.