Sheet metal shell processing is a common metal processing technique, suitable for producing shells and casings of various mechanical equipment. The processing operation process can be roughly divided into the following seven steps:

1. Design plan: Before carrying out sheet metal shell processing, it is necessary to first design a suitable plan. Based on the requirements and functions of the product, determine the design parameters such as shape, size, and structure of the shell, and draw detailed engineering drawings.

2. Material preparation: Select suitable metal materials as raw materials for sheet metal shells. Common materials include cold-rolled sheet, hot-rolled sheet, stainless steel, etc. Cut and trim materials according to design requirements, and prepare them into the required size and shape.

3. Programming: Perform numerical control programming according to the design drawings and requirements. By programming the machining path of the machine tool, the sequence and parameters of cutting, bending, stamping and other operations are determined to prepare for subsequent machining.

4. Cutting: Use CNC cutting machines to accurately cut prepared metal materials. According to the set program, perform cutting operations to cut the material into the desired shape and size.

5. Bending: Bending the cut metal sheet to shape it into the desired shell shape. Use CNC bending machine to bend metal plates, ensuring that the structure and dimensions of the shell meet the design requirements.

6. Stamping: Using CNC punching machines for stamping processing, punching, cutting and other operations on the shell. According to the design requirements and program settings, carry out stamping operations to ensure that the shell has the required functions and assembly hole positions.

7. Welding and assembly: Welding, splicing, and assembling the processed sheet metal shell. Assemble the various components together, weld them together, ensure the shell structure is firm and well sealed, and perform surface treatment to make it smooth and flat.

The above is the general operation process of sheet metal shell processing. Through precise processing and assembly, various shell products that meet design requirements can be produced to meet the various functions and needs of mechanical equipment.