1. Use sharp blades to reduce the cutting force of CNC milling machines. Machine blades are divided into coated and non-coated blades. Uncoated blades are usually sharper than coated blades, because if the blades are to be coated, they must be passivated (ER), because of the sharp edges The mouth will affect the bond strength of the coating at the cutting edge.

2. When cutting deep, using a small tip radius can undoubtedly reduce the cutting force. Especially radial cutting force, and radial cutting force is the main factor that causes the vibration of slender bar tools or workpieces. Whether it is bumping or milling. At the same cutting depth, the radius of the tool nose arc is larger. The slender shank has a greater tendency to vibrate.

3. When the cutting depth can be selected, it should be avoided that the cutting depth is equal to the arc radius of the tool tip

4. For the key cutting of the sharp knife of the slender shank, or the external turning of the slender shaft, the use of a tool with a 90 ° main declination is conducive to vibration reduction. Whether it is an external turning tool for turning a slender shaft or a key hole in a slender shank, it is always 90 °, and the radial cutting force generated by the tool with a main declination angle is small. At the same time, the axial force generated by the blade edge is large.

5. For milling cutters with slender rods, round-blade milling cutters are good for damping vibrations. The milling cutter is opposite to the agitating cutter. The closer the main declination angle is to 90 °, the greater the radial cutting force and the greater the vibration of the shank. Therefore, in the face milling process of the deep hole cavity of the mold, the CNC milling machine usually chooses a 45 ° main declination milling cutter if the cutting depth is less than 1mm. Round blade milling cutters or ball cutters are often used.

6. When the CNC milling machine uses a slender rod end mill to mill a deep cavity, plunge milling is often used. Plunge milling is the axial feed of the tool like a drill. When milling a deep cavity. Usually the long rod's cantilever is greater than 3 times the diameter of the shank. We recommend the use of axial feed. But the radial cutting edge of the edge width of the end mill blade. The tool supplier has technical information to prove that the cutter has a large width during plunge milling.

7. The cause of vibration in the milling of thin-walled workpieces comes entirely from the workpieces. Such workpieces are called box or bowl parts. Because the vibration comes from the workpiece itself. So when dealing with the milling of such parts, it is mainly to improve the clamping of the workpiece.

8. When boring in the inner hole, the smaller the blade edge angle, the better. In this way, the auxiliary main declination angle is large, and the contact area between the auxiliary cutting edge and the processed surface is small, and the vibration is difficult to turn into vibration.

9. If the face milling cutter adopts sparse tooth unequal distance milling cutter, the milling vibration can be reduced. Here "tooth" refers to the blade. Face milling cutters of the same diameter (eg 100mm). If their three cutting elements are equal, then the 5-blade cutterhead must produce 50% less milling force than the 10-blade cutterhead.

10. Use blades with positive rake angle and large rake angle. And equipped with brittle chip breaker. The cutting wedge angle of such inserts in filing or milling is small, and the cutting is of course light.

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