In CNC programming, what does the term "interpolation" refer to?

Interpolation in CNC programming refers specifically to the method of calculating intermediate points along a tool path. This is crucial in machining as it allows the CNC machine to move smoothly and accurately along a defined path between two points. The interpolation process determines the coordinates of all points in between, which influences the motion and behavior of the cutting tool during operation.

For instance, when a machine executes a programmed command to move from one coordinate to another, interpolation helps in defining how the machine transitions through space. This can involve linear interpolation (straight-line movement) or circular interpolation (curved movement), ensuring precision in the final product. Mastery of interpolation is essential for achieving high-quality machining results, which is why it plays a pivotal role in CNC programming.