The CNC drilling and milling machine is a kind of processing equipment that is widely used in our lives, but once it has been used for a long time, some problems will occur. Today we will introduce in detail the related introduction of the vibration problem of the end mill of the CNC drilling and milling machine.


1. There is a gap between the milling cutter and the tool holder

    There is a small gap between the milling cutter and the tool holder, which is not only easy to fall, but also easy to vibrate. Vibration will cause uneven cutting of the circumferential edge of the end mill, and the cutting expansion rate will increase compared with the original value. This will not only affect the machining accuracy of the bed-type CNC milling machine, but also seriously affect the service life of the tool. If the gap cannot be completely eliminated, measures should be taken to reduce the number of cutters and increase the feed speed.


2. The choice of cutting method

    We know that there are two milling methods: reverse milling and forward milling. The choice should be comprehensively judged according to the requirements of the workpiece processing, the material of the workpiece, the rigidity of the CNC milling machine bed and the vibration of the end mill. Generally speaking, forward milling helps prevent damage to the cutting edge, reduce the possibility of vibration, and extend the life of the tool. However, if there is an oxide film or other hardened layer formed by the casting and forging process on the surface of the workpiece, the reverse milling effect is better.


3. Setting of cutting parameters

    Generally speaking, the choice of cutting speed mainly depends on the material of the workpiece to be processed. The choice of feed speed mainly depends on the material of the workpiece to be processed and the diameter of the end mill. Therefore, when machining a workpiece on a bed-type CNC milling machine, the CNC programming should fully consider the influence of various factors such as the machine tool, the tool system, the shape of the workpiece to be processed, and the clamping method. The cutting speed and feed rate should be appropriate according to the actual situation. Adjustment. When the tool vibrates slightly, the cutting speed and feed rate can be appropriately reduced. When the chip condition is not good, the cutting speed can be appropriately increased.


    The above is an introduction to the reasons and solutions for the vibration of the end mill of the CNC drilling and milling machine, so this article is over here. If you are interested in the CNC drilling and milling machine, you can pay attention to our website, thank you for reading!