Общий каталог ZCC-CT 2019 - страница 936

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Solid carbide mills A

Terminology

6 5 2
1. Cutting edge diameter
2. Chip pocket
3. Length of cutting edge
A 4. Total length
5. Neck
3
6. Shank
4 7. Shank diameter
1 1. Chamfer width, main cutting edge
2 2. Chamfer width, diameter
B 3. Neck, front side

B 7 4 5 4. Primary radial clearance angle

5. Secondary radial clearance angle 6 6. Radial rake angle 8 7. Axial main cutting edge

3

8. Core diameter

1 5

6

1. Cutting edge 2. Axial rake angle

C 2 3. Primary axial clearance angle

4. Secondary axial clearance angle 5. Inclination angle 3 6. Radial cutting edge 4

C

Teeth, chip pocket and tool rigidity

Teeth 2 flutes 3 flutes 4 flutes

Cross section

D

Cutting edge ratio 54 % 56 % 60 %

  • Large chip pocket
  • Good chip removal
  • Good rigidity

Advantages

  • Good chip removal
  • Good surface quality
  • Good surface
  • Slot milling
  • Slot milling
  • Slot milling (flat)

Application Square shoulder milling Square shoulder milling Square shoulder milling

  • Drilling
  • Finishing
  • Finishing

Length of cutting edge (overhang) and cutting diameter The shorter the overhang, the stronger the rigidity. Thus isn't easy to generate. Bend and vibration in the cutting process may occur. Length (overhang) increases by 1 time, the deflection degree (f ) will be 8 times of the former one.

Reduce the overhang by 20 %

the deflection degree (f) will decrease by 50 %

Increase the diameter by 20 %

the deflection degree (f) will decrease by 50 %

E

l

F

f

f F × l3 F × l3 × 64

3 × E × l 3 × E × l