Library
| Terminology | Tooth Geometry | Hook Angle | Formula | Cutting Speed | Basic information |
|---|---|---|---|---|---|
Cutting Parameter Calculation Formula
1. Cutting speed(Vc ; Cutting Speed) shows as M/min or M/sec
| $$ Vc = \frac{π × D × N}{1000}(M/min) --- or --- Vc = \frac{π × D × N}{60 × 1000}(M/sec)$$ |
| ※ π : 3.14159 / D : Saw blade diameter (㎜) / N :RPM |
| Calculation example / When D; 350㎜, N; 230rpm, then the Cutting speed will be ; |
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| $$ Vc = \frac{3.14159 × 350 × 230}{1000}=252.97M/min - or - Vc = \frac{3.14159 × 350 × 230}{60 × 1000}=4.215M/sec$$ |
2. Feed speed vs Feed rate
| A correct feed per tooth (Fz) is required to optimize the saw blade's tool life and cutting performance. When Fz value is too low, it could cause rapid wear of cutting edge. When Fz value is too high, it could cause tooth breakage. |
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| $$ Vf = \frac{Fz × N × Z}{1000}(M/min)$$ |
| ※ Fz : Feed Rate / Feed per Tooth (㎜) or Chip load / tooth / N : RPM / Z : Number of teeth / Vf : Feed speed (M/min) |
| Calculation example / When D; 350㎜, N; 230rpm, Fz=0.035㎜, Z=120, then the Feed speed will be ; |
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| $$ Vf = \frac{Fz × N × Z}{1000}=0.966M/min$$ |
3. Tooth Pitch calculation
| $$ Tp = \frac{π × D}{Z}$$ |
| ※ Tp : Tooth Pitch / π : 3.14159 / D : Saw blade diameter(㎜) / Z : Number of teeth |
| Calculation example / When D; 350㎜, N; 230rpm, Fz=0.035㎜, Z=120, then the Tooth pitch will be ; |
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| $$ Tp = \frac{3.14159 × 350}{120}=9.16mm$$ |
| ※ In general, increase the number of tooth enables clean surface cut. When cutting thick material, choose larger tooth pitch. |