There are a number of ways to reduce CNC machining time, including:

• Optimize the tool path. The tool path is the path that the cutting tool takes while machining the part. By optimizing the tool path, you can reduce the amount of time that the cutting tool spends traveling. This can be done by using software to generate a tool path that is efficient and minimizes unnecessary movements.
• Use the correct cutting tools. The type of cutting tool that you use can also have a significant impact on machining time. For example, using a high-performance cutting tool with a sharp edge can reduce machining time by 20% or more.
• Increase the feed rate and depth of cut. The feed rate is the rate at which the cutting tool moves into the material, and the depth of cut is the amount of material that is removed with each pass of the cutting tool. By increasing the feed rate and depth of cut, you can reduce the number of passes required to machine the part, which reduces the overall machining time.
• Reduce non-cutting time. Non-cutting time is the time that the machine tool is not actively machining the part. This includes time spent loading and unloading the part, changing tools, and moving to different positions. By reducing non-cutting time, you can increase the overall efficiency of the machining process.

By following these tips, you can significantly reduce CNC machining time and improve the efficiency of your production process.