When machining with a vertical CNC lathe, there are many aspects to consider to ensure an efficient, precise and safe process. Here are some key aspects to consider:

1. Workpiece material: Different materials have different hardness, toughness and thermal conductivity, so it is necessary to select appropriate CNC lathe tools, cutting speed and feed speed according to the characteristics of the workpiece material.

2. Tool selection: Select the appropriate CNC lathe tool type, tool material and tool geometry to suit the specific machining task and workpiece material.

3. Speed and feed: Determine the appropriate CNC lathe spindle speed and feed speed to achieve the best cutting effect. This requires consideration of tool diameter, depth of cut and workpiece material.

4. Clamping method: Ensure that the CNC lathe workpiece is firmly clamped during processing to prevent vibration, displacement or deformation. Select appropriate fixtures and clamping methods, taking into account workpiece shape and size.

5. Tool path planning: Use appropriate CNC lathe tool path planning to minimize no-load movement and ensure a reasonable path for the tool during processing to improve processing efficiency.

6. Cooling and lubrication: Use appropriate cooling and lubricants during CNC lathe processing to reduce cutting temperature, extend tool life, and improve machined surface quality.

7. Processing sequence: Plan a reasonable CNC lathe processing sequence, taking into account the geometric characteristics and processing characteristics of the workpiece, to minimize tool crossover and improve processing efficiency.

8. Processing accuracy: The CNC lathe sets appropriate processing accuracy and surface roughness requirements, and adjusts the processing parameters to meet these requirements.

9. Safety measures: Follow relevant safety operating procedures to ensure the safety of operators and equipment. This includes using protective gear, operating control panels correctly, etc.

10. Quality control: Regularly check the size and surface quality of processed parts and conduct quality control to ensure that the product meets the design requirements.

By comprehensively considering the above factors and making adjustments according to specific processing tasks and workpiece requirements, the processing process of the vertical CNC lathe can be effectively optimized and the production efficiency and processing quality can be improved.