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Le fraisage traditionnel est principalement utilisé pour fraiser des formes/caractéristiques simples telles que des contours et des rainures.. La fraiseuse CNC peut traiter des formes et des caractéristiques de contour complexes. Le centre d'usinage de fraisage et d'alésage peut effectuer un fraisage et un alésage à trois axes ou multi-axes pour l'usinage, moules, outils d'inspection, surfaces courbes complexes à parois minces, pales de turbine, etc.. Lors de la sélection du contenu du fraisage CNC, les avantages et le rôle clé de la fraiseuse CNC doivent être pleinement utilisés.
Cutter position setting for down milling
Cutter position setting for up milling
The center offset of the milling tool when the tool diameter is larger than the width of the workpiece
The cutting width is 70%~80% of the tool diameter
▲Milling processing case
In the actual production of milling processing, it includes many application skills such as machine tool setting, workpiece clamping and tool selection. The following is a brief summary of 4 complete solutions of milling and 17 main points of milling. Each point is worthy of your in-depth grasp.
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1. Power capacity
Check the power capacity and machine rigidity to ensure that the machine tool can use the required milling cutter diameter.
2. The stability of the workpiece
Workpiece clamping conditions and considerations.
3. Tool overhang
Make the tool overhang on the spindle as short as possible during processing.
4. Choose the right milling cutter tooth pitch
Use the correct tooth pitch of the milling cutter suitable for the process to ensure that there are not too many blades involved in the cutting, otherwise it will cause vibration.
5. The thickness of the milled workpiece
For narrow workpieces or when milling with gaps, ensure that there is sufficient thickness of the blade to take the knife.
Use positive rake geometry indexable milling inserts
Sélectionnez le pas de dent de coupe approprié
6. Groove selection of milling inserts
Use positive rake geometry indexable milling inserts as much as possible to ensure smooth cutting action and lowest power consumption.
7. Use the correct feed
By using the recommended maximum chip thickness, ensure the correct feed of the milling insert used to achieve the correct cutting effect.
8. Cutting direction
Use down milling as much as possible.
9. Part considerations
The material and configuration of the workpiece, and the quality requirements of the surface to be processed.
10. Material selection of milling inserts
Select the geometry and material according to the type of workpiece material and application type.
11. Vibration-damped milling tools
For longer overhangs that are more than 4 times the tool diameter, the vibration tendency becomes more obvious, and the use of vibration-damped milling tools can significantly increase productivity.
12. Entering angle
Choose the most suitable entering angle.
13. Milling cutter diameter
Choose the correct diameter of the milling cutter according to the width of the workpiece.
14. Positioning of milling tools
Position the milling cutter correctly.
15. Cutting in and out of milling tools
It can be seen that through the arc cutting, the chip thickness when the tool is retracted is always zero, which can achieve higher feed and longer tool life.
16. Coolant
Use coolant only when deemed necessary. En général, milling can be performed better when no coolant is used.
17. Maintenance
Follow tool maintenance recommendations and monitor tool wear.