In CNC machining, what does the term “feed rate” refer to?

Feed rate specifically refers to the speed at which the cutting tool advances through the material being machined. It is a critical parameter in CNC machining because it directly affects the efficiency of the machining process, the quality of the finished product, and the wear on the cutting tool. By optimizing the feed rate, machinists can achieve the desired surface finish and dimensional accuracy while also managing tool life and machine wear.

The feed rate is typically measured in units such as inches per minute or millimeters per minute, which indicates how fast the tool will cut along the material. Selecting the appropriate feed rate is crucial, as setting it too high can lead to tool breakage or poor surface quality, while a rate that is too low can result in inefficient machining and wasted time. Understanding and applying the correct feed rate is fundamental for successful CNC operations.