Semi-automatic Part Leveing Machine is a type of machine equipment used to remove stress from sheet metal. Its main function is to correct or adjust the sheet metal to meet the flatness and dimensional accuracy requirements specified in the design. 

In sheet metal stamping processing, due to the physical properties of the material, after certain processing, the sheet metal will generate residual stress, which can affect the accuracy and stability of the parts, and even lead to part failure. 

Therefore, it is necessary to use a precision leveling machine to perform stress relieving treatment on the plate to ensure the quality and stability of the workpiece. Only after the stress is removed can the sheet proceed to the next processing steps, such as cutting, bending, stamping, etc.