Longmen five axis machining is a high-precision and high-efficiency machining method, so the following aspects need to be noted in practical operation: 1. Equipment inspection and maintenance: Before use, a comprehensive inspection and maintenance of the Longmen five axis machining equipment should be carried out, including the inspection of key components such as the spindle, servo system, cutting fluid system, and fixtures. Ensure that the equipment is operating in normal working condition to avoid a decrease in machining accuracy or equipment damage caused by equipment failure. 2. Tool selection and use: According to the requirements of the machining task, choose the appropriate tool to ensure that the quality and accuracy of the tool meet the machining requirements. At the same time, attention should be paid to the wear of cutting tools during the machining process, and severely worn tools should be replaced in a timely manner to ensure machining quality and efficiency. 3. Processing parameter setting: Set reasonable processing parameters based on factors such as material hardness, thickness, shape, etc., such as feed rate, cutting depth, spindle speed, etc. Ensure that the setting of processing parameters meets the processing requirements and avoids errors such as overcutting and tool collision. 4. Process monitoring: During the processing, it is necessary to closely monitor the processing status, promptly detect and handle abnormal situations. By monitoring the machining process in real-time, problems such as tool wear and machine vibration can be detected in a timely manner, and corresponding measures can be taken to solve them. 5. Safety and operating procedures: Operators should strictly comply with relevant safety operating procedures, wear personal protective equipment, and avoid body parts from approaching moving parts. At the same time, it is necessary to ensure that the safety devices of the equipment, such as safety doors, warning lights, and emergency stop buttons, are intact and functional to ensure the safety of the processing process.