16 Essentials of Milling
In the actual production of milling processing, including machine tool settings, workpiece clamping, tool selection and other application skills, today I will briefly summarize the key points of milling processing for you. It is worth reading!
1. Power capacity
Check the power capacity and machine tool rigidity to ensure the machine can handle the required milling cutter diameter.
2. Workpiece stability
Workpiece clamping conditions and considerations.
3. overhang
Keep the tool overhang on the spindle as short as possible when machining.
4. Choose the correct milling cutter pitch
Use the correct milling cutter pitch for the job to ensure there is not too much blade involvement in the cut, which can cause vibration.
5. Cutting knife
When milling narrow workpieces or gaps, make sure there is enough blade engagement.
6. Insert geometry selection
Wherever possible, use indexable inserts with positive rake angles to ensure smooth cutting action and minimum power consumption.
7. Use the correct feed
Ensure the correct feed of the insert used to achieve the correct cutting action by using the recommended maximum chip thickness.
8. Cutting direction
Use down milling whenever possible.
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9. Parts Considerations
Workpiece material and configuration, as well as quality requirements for the surface to be machined.
10. Blade material selection
Select geometry and grade based on workpiece material type and application type.
11. Vibration-damping milling cutter
For longer overhangs of more than 4 times the tool diameter, the vibration tendency becomes more pronounced, and the use of vibration-damped tools can significantly increase productivity.
12. Leading angle
Choose the most appropriate entering angle.
13. Milling cutter diameter
Choose the correct diameter based on the width of the workpiece.
14. Milling cutter position
Position the milling cutter correctly.
15. Milling cutter cut-in and cut-out
It can be seen that through arc cutting, the chip thickness when retracting is always zero, which enables higher feeds and longer tool life.
16. Coolant
Use coolant only when deemed necessary. Milling generally performs better without the use of coolant.
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