In FANUC programming, what does the letter “F” signify?

In FANUC programming, the letter "F" specifically denotes the feed rate, which is a critical component in CNC (Computer Numerical Control) programming. The feed rate indicates how fast the cutting tool moves through the material during the machining process. It is expressed in units such as millimeters per minute (mm/min) or inches per minute (in/min) depending on the system's measurement standard.

By specifying the feed rate, programmers control the speed at which the tool engages with the workpiece, which impacts both the quality of the machining and the wear on the tool. Selecting an appropriate feed rate is essential for optimizing machining efficiency and achieving desired surface finishes.

Understanding the function of the "F" designation helps operators effectively program their machines to produce accurate parts and manage the operational parameters of their cutting processes. In contrast, the other options represent different concepts that do not align with the programming conventions used in FANUC systems.