1. Blanking: Cutting metal sheets into the required shapes and sizes to prepare for subsequent stamping.
2. Punching: Punching holes in the sheet metal for installation or other functions.
3. Bending: Bending the sheet metal into specific angles or shapes to form a three-dimensional structure.
4. Stretching: Stretching the sheet metal to create deep cavities or complex shapes.
5. Shaping: Fine-tuning the stamped parts to ensure their dimensions and shape meet requirements.
Each step requires precise control to ensure the quality of the final product. For example, inaccurate cutting during blanking can lead to difficulties in subsequent stamping; improper angle control during bending can prevent parts from being assembled.