Method of grinding the teeth of a circular saw to an improved contour
AssigneeThe Motch & Merryweather Machinery Company
InventorRobert H. Nowak
Life of this patent
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Abstract
A cup-shaped wheel having an abrasive rim is employed to grind the teeth of a circular saw to an improved contour. Only point or edge contact takes place between the abrasive rim and the tooth. This technique is preferably utilized in conjunction with triple-chip type circular saws of the sort used to cut metals such as steel. The contour imparted to the cutting surface of the tooth comprises a section of an elliptical cylinder and exhibits improved steel cutting characteristics when compared to prior art multi-faceted saw teeth. Since only edge contact takes place between the abrasive rim and the tooth, the wheel is essentially self-dressing.
Claims2
A method for automatically point grinding the teeth of a circular saw to an improved contour, said method comprising the steps of:
- securing said circular saw in a relatively immobile fashion;
- advancing the abrasive rim of a cup-shaped grinding wheel into grinding contact with one tooth of said circular saw;
- grinding a portion of the face of said tooth to a substantially elliptical contour at a more negative average rake angle than the remaining portion of the face of said tooth;
- and,
- withdrawing grinding cup-shaped wheel from the vicinity of said tooth.
A method for automatically point grinding the teeth of a circular saw to an improved contour, said method comprising the steps of:
- securing said circular saw in a relatively immobile fashion;
- passing the abrasive rim of a cup-shaped grinding wheel over the face of one tooth of said circular saw thereby grinding a portion of the face of said tooth to a substantially elliptical contour having a more negative average rake angle than the remaining portion of the face of said tooth;
- and,
- withdrawing the grinding cup-shaped wheel from the vicinity of said tooth.
Dependencies are inferred from the claim text.