US 6,520,722 B2 · Asymmetrical cutting tool tooth form

Abstract

Disclosed is a cutting tool with an asymmetric tooth form, and a method for making the same. Such tooth forms are useful for cutting tools such as band saw blades, circular saws, hacksaws and other saw type products. The tooth form of this invention can improve precision over prior art tooth forms by reducing manufacturing variability. The improved precision provides more consistent performance and a better quality of the cut surface. The non-symmetrical form ground tooth profiles cut designated chip profiles and thereby cut specific portions of the kerf much like a broaching application. This non-symmetrical ground tooth profile can alter the distribution of the downfeed cutting force allowing for more aggressive cutting or conversely, cutting at the desired rate with less downfeed pressure.

Claims15

Dependent claims

A cutting tool comprising a pattern of cutting teeth, each tooth having corners, and including a carbide tip on a steel support member, the carbide tip having a maximum width and a side relief decreasing the width of the tip from the maximum width toward the steel support member, wherein the pattern of cutting teeth comprises:

a tooth having a symmetric ground tooth form, and
at least one pair of teeth having an asymmetric ground, non-set tooth form that is asymmetric around a center line through a plane equally dividing a maximum width portion of the carbide tip,
wherein each of the corners of at least one of the at least one pair of teeth having an asymmetric ground tooth form is chamfered, a first corner having a greater amount of chamfer than a second corner,
and wherein the carbide tip of the asymmetric ground tooth form has a maximum width that is wider than a maximum width of the steel support member.

1 more element

Dependencies are inferred from the claim text.

Asymmetrical cutting tool tooth form

Life of this patent

Asymmetrical cutting tool tooth form

Life of this patent

Abstract

Claims15