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Section 7
BANDSAW CUTTING:
A PRACTICAL GUIDE
INTRODUCTION
SAW BLADE SELECTION
VISE LOADING
BladeBreak -In
SOLUTIONS TO SAWING PROBLEMS
INTRODUCTION
1.
TPI: The number of teeth per inch as measured from gullet to gullet.
2. Tooth Rake Angle: The angle of the tooth face measured with respect to a line perpendicular to the cutting
direction of the saw.
3.Tooth Pitch: Tooth pitch refers to the number of teeth per inch (tpi). 1 inch equates to 25.4 mm.
A distinction is made between constant tooth pitches with a uniform tooth distance, 2 tpi for example, and
variable tooth pitches with different tooth distances within one toothing interval.
Variable tooth pitches, for instance 2-3 tpi, can be characterized by two measures: 2 tpi stands for the maximum
tooth distance and 3 tpi stands for the minimum tooth distance in the toothing interval.
Constant Variable
Min. Max
4. Set: The bending of teeth to right or left to allow clearance of the back of the blade through the cut.
5. Width: The nominal dimension of a saw blade as measured from the tip of the tooth to the back of the band.
6. Thickness: The dimension from side to side on the blade.
7. Gullet: The curved area at the base of the tooth. The tooth tip to the bottom of the gullet is the gullet depth.
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