|
|
| Values: |
WD
TP
PT
TK
SC
GA
RPM
DC
|
Wheel Diameter (Inches)
Tooth Pitch (Inches)
Plate Thickness (Inches)
Tip Kerf (Inches)
Side Clearance (Inches)
Gullet Area (Square Inches)
RPM's Wheel Speed
Depth of Cut (Inches)
|
|
FR
TB
HP
RS
GFI
SCE
SG
PI
|
Feed Rate (Feet per Minute)
Tooth Bite (Feed per Tooth)
Horse Power
Rim Speed (Feet per Minute)
Gullet Feed Index
Specific Cutting Energy (Table A)
Specific Gravity (Table B)
3.14159 (Constant)
|
|
| Tables: |
Specific Cutting Energy (Table A):
|
Type
|
Value
|
Softwoods
Dry Fir
Hardwoods
|
35
40
70
|
|
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)
|
SC = (TK x PT) / 2
|
GFI = (TB x DC) / GA
|
RS = (WD / 12) x PI x RPM
|
HP = (DC x TK x FR x SCE) / 144
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|