What is the main difference between cutting speed and feed rate?

The main difference between cutting speed and feed rate lies in their definitions and applications in machining operations. Cutting speed is defined as the speed at which the cutting edge of the tool engages the material being machined. It is generally measured in surface feet per minute (SFM) or meters per minute (MPM) and is influenced by factors such as the type of material being cut and the tool material. Cutting speed indicates how quickly the tool moves through the material, affecting the rate of material removal and influencing the heat generated during machining.

Feed rate, on the other hand, refers to the distance the tool advances into the workpiece per unit of time, which can be measured in inches per minute (IPM) or millimeters per minute (MM/min). This measurement focuses on how deeply the tool penetrates the material with each pass and impacts the finish quality, the rate of material removal, and the forces exerted on the tool.

Understanding the distinction between these two parameters is crucial for optimizing machining operations, as both play significant roles in the efficiency of cutting processes. The correct choice emphasizes that cutting speed is related to the tool's speed relative to the workpiece, while feed rate addresses the tool's movement through the material. This clarity helps machinists