How to Control Vibration During CNC Machining

So, teach you how to control vibration during CNC machining:

 

(1) Solution ideas

 

1. Reduce the cutting force to the minimum.

2. It is to enhance the static rigidity of the tool system or fixture and workpiece as much as possible.

3. It is to create a vibration inside the tool holder to disrupt the vibration frequency of the external cutting force, thereby eliminating tool vibration.

(2) Countermeasures

1. Reduce the cutting force to the minimum.
(1) Use sharp blades to reduce cutting force.
(2) When the cutting depth is fixed, use a small tool tip arc radius.
(3) For boring and turning slender shaft parts with slender tool bars, a 90 degree main deviation angle tool should be used.
(4) For milling cutters with slender rods, circular blade milling cutters are more conducive to vibration reduction.
(5) Insertion milling method is often used when milling deep cavities with slender end mills.
(6) The face milling cutter uses sparse teeth and unequal distance milling cutters to reduce milling vibration.
(7) When boring internal holes, the smaller the blade shape angle, the better.

2. Improve the static stiffness of the tool holder (StaticToughness).
Using integral hard alloy or heavy metal tool holders to improve the static rigidity of the tool holder.

3. Improve the dynamic rigidity of the tool - passive damping and vibration avoidance tool bar.