With the improvement of current quality of life, stamping parts have penetrated into various fields and are closely related to our life. Precision stamping parts are made by stamping process, which is a processing method to obtain certain size, shape and performance by plastic deformation of the die or separation of the workpiece plate. The stamping and stretching process shall be based on the actual conditions of equipment and personnel, and the process scheme with advanced design technology, economic rationality, safety and reliability shall be selected. The process advantages and manufacturing principles of precision metal stamping are introduced as follows:

1. Process Advantages of Precision Metal Stamping

(1) The assembly of precision metal stampings are convenient and energy-saving.

(2) The precision metal stampings are simple in shape and reasonable in structure, which is conducive to die manufacturing.

(3) Precision metal stampings shall be applied to existing material equipment, process equipment and process flow as far as possible.

(4) Metal stampings can improve the utilization rate of metal materials and reduce the types and specifications of materials.

(5) Precise metal stampings are conducive to the exchange of workpieces of the same batch and reduce scrap.

2、 Manufacturing principles of precision metal stampings

(1) Precision principle: the process quantity of deep drawing parts is related to material property, drawing height, drawing ladder number, drawing diameter, material thickness, etc.

(2) Fine standard: The number of bending pieces mainly depends on the disorder of their structural shape, which needs to be determined according to the number of bending angles and bending direction.

(3) Fine principle: when the section quality and standard precision of the stamping workpiece are high, the repair process can be added after the stamping process, or the fine stamping process can be directly selected.

(4) Precision principle: when cutting workpieces with simple shape, single process die can be selected. When cutting workpieces with messy shapes, due to the limited structure or strength of the die, several parts shall be allocated on the surface and inside for cutting, and multiple stamping processes shall be selected.

(5) Quality principle: in order to ensure the quality of fine metal stamping parts, sometimes the process quantity is required. For example, the additional process hole punching of bending parts can increase deformation and reduce hole punching in the forming process to transfer the deformation area to ensure fine quality.