End mill cutter work principle

End mill machining the workpiece on the CNC machine tools, it is clear that the movement of the tool center rail gauge with the workpiece contour do not coincide, it is because the contour end mill cutter motion envelope is formed. End mill cutter center point of the tool is called (4,5 axis NC machine tool known as a bit vector), knife sites meter track movement, which represents the trajectory of the tool. NC machining, is prepared in accordance with the size of the workpiece contour program, or by the trajectory of the size of the knife programming sites, which should be handled according to specific circumstances. In the full-function CNC machine tools, CNC wood milling cutters compensation system, according to the dimensions of the workpiece contour programming, established after the execution tool compensation, the CNC system automatically calculates, knife sites automatically adjust to the tool trajectory. Workpiece dimensions directly machining programs, tool wear, replace the machining program unchanged, and therefore the use of simple and convenient. Economical CNC simple structure, low price, there is a certain amount of production enterprises have. In the economical CNC system, if no tool compensation function, can only knife sites trajectory size machining programs, which requires first calculate the trajectory of sites based on the size of the knife the size and contour tool diameter. Therefore computationally intensive, complex, and tool wear, replace the need to re-calculate the trajectory of the size of cutting blade sites, re-establishment of the machining program.