Thin-walled parts often face the challenge of deformation during CNC turning due to the high impact forces generated by the turning process. Below are some methods that can be implemented to reduce the deformation of thin-walled parts during CNC turning:
1. Reduce the cutting force: This can be achieved by adjusting the cutting parameters such as the cutting speed, feed rate, and depth of cut. Reducing the feed per revolution or the depth of cut of the cutting tool can help reduce the cutting force, which in turn reduces the risk of deformation.
2. Use a larger sized tool: Using a larger sized tool also reduces the cutting force and minimizes the risk of deformation. The use of inserts with a larger radius can also help in reducing the cutting force.
3. Support the workpiece: The use of a steady rest or a live center can provide support to the thin-walled parts during the turning process, reducing deformation.
4. Use a softer chucking material: Soft chucking material such as brass can help in reducing the deformation of the workpiece. This is because softer materials provide a better grip and flexibility without causing any harm to the workpiece.
5. Use heat treatment: Heat treatment after the CNC turning process can help to reduce or eliminate the deformation of thin-walled parts. This is because the heat treatment process can help to relieve any residual stresses that may cause deformation.
In conclusion, reducing the cutting force, using a larger tool, supporting the workpiece, and using a softer chucking material can help to reduce the deformation of thin-walled parts during CNC turning. In addition, heat treatment after the CNC turning process can also help to eliminate any residual stresses caused by deformation.
