1. Inspection of equipment: firstly, check whether there is any problem with the equipment and whether it needs replacement or maintenance. If the round interface is not round due to equipment problems, handle it in time.

2. Formulate technological process: formulate technological process and train operators to ensure the accuracy and standardization of operation.

3. Material preparation: Material is the key to make stainless steel plate circular joint. We should choose materials with good quality and uniform thickness, and make them in strict accordance with the operating standards.

4. Operation skills: some skills should be mastered during operation, such as ensuring the position of the processing head is consistent with the center of the original board, the speed and strength of the processing head, etc. These skills will affect the roundness and accuracy of the circular interface.

5. Quality inspection: After the operation, quality inspection must be carried out to ensure that the manufactured circular interface meets the requirements.