When processing stainless steel with CNC lathes, you need to pay attention to the following issues:

1. Tool selection: CNC lathes choose hard tools suitable for stainless steel processing, such as carbide tools or coated tools. Due to the higher hardness of stainless steel, conventional knives may wear out faster.

2. Cutting parameters: Adjust cutting parameters such as CNC lathe cutting speed, feed speed and cutting depth. Typically, CNC lathe cutting speeds and feed rates need to be reduced to reduce cutting temperatures and extend tool life.

3. Cooling lubrication: CNC lathes use sufficient cooling lubricant to reduce cutting temperature, reduce tool wear and extend tool life. Stainless steel is prone to thermal deformation and welding, and proper cooling and lubrication can effectively control the temperature during processing.

4. Tool positioning: Ensure that the CNC lathe tool is correctly positioned to avoid collision or misalignment between the tool and the workpiece to prevent damage to the tool and workpiece.

5. Chip removal treatment: Clean the chips generated during processing in a timely manner to avoid the impact of chip accumulation on the processing quality. At the same time, pay attention to the chip removal method to prevent the chips from wrapping around the tool or workpiece.

6. Stable clamping: Ensure that the CNC lathe workpiece is stably clamped on the CNC lathe to avoid vibration or displacement during CNC lathe processing, which will affect the processing accuracy and surface quality.

7. Avoid tool return: Try to avoid tool return during stainless steel processing, because tool return may cause damage to the tool or produce tool marks, affecting the processing quality.

8. Pay attention to tool wear: Regularly check the wear of CNC lathe tools, and promptly replace seriously worn CNC lathe tools to ensure the quality and efficiency of CNC lathe processing.

9. Processing surface quality: CNC lathe stainless steel processing is prone to knife marks and burrs, so appropriate process measures or secondary processing need to be taken to improve the processing surface quality.

By paying attention to the above issues, the efficiency and quality of stainless steel CNC lathe processing can be effectively improved, while reducing the risk of tool wear and workpiece damage.