Basic Process and Technological Process of Metal Stamping Parts

≪ 1> The four basic processes of stamping technology

Stamping technology in automobile manufacturing requires the application of different manufacturing processes in order to achieve the specifications and requirements of stamped parts. It can be roughly divided into the following categories:

1. Basic process skills in stamping

Metal stamping parts; The basic processes in production technology include four types: local forming, bending, punching, and stretching. The punching process in stamping technology can separate sheet metal; The process in which sheet metal can form an angle through stamping is called bending; The process of processing sheet metal into hollow parts based on the shape of the die for further manufacturing is called stretching; The process of local forming is the process of local plasticity through stamping technology.

2. Separation process and molding process

The process of separating and shaping materials based on their characteristics. Separation process: The material undergoes significant deformation due to the force of stamping, resulting in material fracture and separation. The separation process can also be divided into cutting process, punching process, and material dropping process, etc. Their purpose is to divide the stamping process with the realization of the sheet metal during stamping. Forming process: It is a material that undergoes plastic deformation and other processes when the raw material is subjected to impact pressure, and then becomes a qualified part in the specification standards. The forming process of stamping workshop includes necking process, flanging process, bending process, etc. Its purpose is to enable materials to undergo plastic deformation, modification, and bending processes without being damaged, and then become stamped parts under required conditions.

≪ Two> Stamping process

1. Basic stamping process

The flipping process, cutting process, cutting process, and punching process are common in parts manufacturing, but each process has its own characteristics, and the differences and significance contained in them are relatively large. For relative automotive parts, analyze the technology according to relevant companies, determine the nature of automotive parts manufacturing work, and modify the process through relative technology and analysis.

2. Analyze the processability of stamping parts

The difficulty of processing automotive stamping parts depends on the manifestation of the processability of the stamping parts. In terms of technology, it requires analysis of the material quality, requirements, size, and appearance characteristics of the parts, and the stamped parts produced meet the standards and requirements.

In addition, excellent processability also requires other characteristics such as ease of operation and stability of part quality. Generally speaking, the accuracy of automotive stamping parts and the structural dimensions of the parts will have a significant impact on the processability of stamping parts. If there is a problem of poor quality stamping parts, it is necessary to provide suggestions and ideas to the relevant departments and make appropriate modifications to the design drawings to improve the processability of stamping parts.

3. Selection method of process

There are often many manufacturing schemes for automotive stamping parts. Therefore, when designing stamping process schemes, a rigorous analysis of the design process of automotive stamping parts should be conducted, and relevant combinations should be made based on multiple processes. It can be a single process for related manufacturing, or a combination of multiple processes for manufacturing automotive stamping parts. Due to the requirements of automotive stamping parts and the need to produce a large number of parts, strict control is required to manufacture automotive parts through repeated stamping. However, when the size of the parts is small, due to the analysis of production efficiency and other factors, it is necessary to continuously produce and process the composite template. If the machines used in automobile parts manufacturing factories can self feed, they need to choose to use continuous stamping production methods. To prevent displacement errors caused by multiple stamping processes, the production method of composite molds is usually chosen. If only a few simple mold manufacturing are carried out, and the cost is higher than that of composite molds and the production volume is relatively small, the factory needs to think about the manufacturing process and choose the appropriate production method.