The metal cutting process is a process in which the tool and the workpiece move and interact with each other.
The relative motion of the tool and the workpiece can be divided into two aspects, one is the main movement and the other is the feed movement. The main movement that causes the workpiece and the tool to move relative to the cutting is called the main movement. The speed of the main movement of the selected point on the blade with respect to the workpiece is called the cutting speed. The main sports feature is the highest speed and maximum power consumption. There is usually only one main movement.
The continuous movement of metal cutting is called feed motion. The relative displacement of the workpiece and the tool in the direction of the feed motion at each revolution or each stroke of the workpiece or tool is called feed. Feed movement is characterized by low speed and low power consumption. There can be several feed movements, either continuous or intermittent.
The metal cutting process is performed by cutting the cutting layer of the workpiece by a tool. In the cutting process, the metal layer of the tool’s cutting edge cut from the surface to be machined of the workpiece in one pass is called the cutting layer. The section size of the cutting layer is called the cutting layer parameter.