| Values: |
DIA
NT
PT
TK
SC
GA
RPM
DC
FR
TP
TB
|
Saw Diameter (Inches)
Number of Teeth
Plate Thickness (Inches)
Tip Kerf (Inches)
Side Clearance (Inches)
Gullet Area (Square Inches)
RPM's Shaft Speed
Depth of Cut (Inches)
Feed Rate (Feet per Minute)
Tooth Pitch (Inches)
Tooth Bite (Feed per Tooth)
|
|
HP
GR
RS
GFI
BF
KWF
FWF
MWF
HF
SG
PI
|
Horse Power
Gullet Area Required
Rim Speed (Feet per Minute)
Gullet Feed Index
Bite Factor
Kerf Width Factor (See Table A)
Face Width Factor (1.0)
Maximum Width of Face
Hardness Factor
Specific Gravity (See Table B)
3.14159 (Constant)
|
|
| Tables: |
Kerf Width Factor (Table A):
|
Tip Kerf
|
Factor
|
0.125
0.1562
0.1875
0.2187
0.250
0.2812
0.3125
0.3437
0.375
|
0.36
0.45
0.55
0.64
0.73
0.82
0.91
1.00
1.09
|
|
Specific Gravity (Table B):
|
Type
|
Value
|
Softwood
Cedar (Western Red)
Douglas Fir (Coast)
Pine (Ponderosa)
Spruce (White)
Hardwood
Birch (Yellow)
Maple
Oak (White)
|
0.35
0.31
0.45
0.38
0.37
0.65
0.55
0.56
0.60
|
|
| Formulas: |
TB = (FR x 12) / (RPM x NT)
|
TP = (DIA x PI) / NT
|
GR = TB x DC
|
SC = (TK x PT) / 2
|
GFI = (TB x DC) / GA
|
BF = 0.05 + (4 x TB)
|
MWF = (GA / TB) x 0.70
|
HF = SG x 2.20
|
RS = (DIA / 12) x PI x RPM
|
|
HP = GR x NT x RPM x BF x HF x KWF x FWF x 0.003
|