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Clearance Angle
In order to prevent the back of the tooth tip from rubbing the
wood in the cut there must be a certain amount of clearance. This angle is given
by the cutting speed of the blade and the feed speed. From this point of view it
should not be less than 10 . The clearance angle
also affects the strength of the tooth tip and its swageability. The
illustration gives some recommendations. To the right the rubbing action is
illustrated.
Choice
of clearance angle. Rubbing action to the right. The illustration has been
exaggerated to make the point clear. |
