Vibration of milling cutter
Dec 15, 2022
Due to the small gap between the milling cutter and the toolholder, the toolholder may vibrate during processing. Vibration will make the cutting amount of the peripheral edge of the milling cutter uneven, and the cutting and expanding amount will increase than the original value, which will affect the machining accuracy and tool life. But when the width of the processed groove is too small, the tool can be vibrated purposefully, and the required groove width can be obtained by increasing the amount of cutting and expansion, but in this case, the maximum amplitude of the milling cutter should be below 0.02mm, otherwise it cannot be For stable cutting. The smaller the vibration of the milling cutter during normal processing, the better.
When tool vibration occurs, the cutting speed and feed rate should be considered to be reduced. If there is still a large vibration after both have been reduced by 40%, the cutting amount should be considered to be reduced.
If there is resonance in the processing system, the reason may be that the cutting speed is too high, the feed speed is just too small, the tool system is not rigid enough, the workpiece clamping force is not enough, the workpiece shape or the workpiece clamping method and other factors are caused. At this time, it should be used Adjust the cutting amount, increase the rigidity of the tool system, increase the feed speed and other measures.






