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US 6,883,412 B1Granted
Method of fabricating circular saw blades with cutting teeth composed of ultrahard tool material
AssigneeSheffield Saw and Tool Co., Inc.
InventorRon Turfitt
Life of this patent
Estimating the term…
Abstract
A cutting tool having a cutting tip partially constructed from ultrahard materials. The cutting tip is oriented on the cutting tool such that the face has a reduced surface area. This has the effect of greatly reducing cutting tool costs and of maintaining the radius of the blade essentially constant even after repeated sharpening of the cutting tip.
Claims17
A saw, comprising:
- a carrier blade;
- a cutting tip having a first layer and a second layer;
- said cutting tip being attached to said carrier blade;
- and
- said cutting tip being oriented such that a center of mass of said
- first layer is generally farther from a center of mass;
- of said carrier blade than is any portion of said second layer;
- wherein said first layer is a material harder than any tungsten carbide composition.
5 more elements
A saw, comprising:
- a carrier blade;
- a cutting tip having a first layer and a second layer;
- said cutting tip being attached to said carrier blade;
- and
- said cutting tip being oriented such that a center of mass of said
- first layer is generally farther from a center of mass;
- of said carrier blade than is any portion of said second layer;
- wherein said second layer is a sintered metal carbide having carbide materials contained in a metal matrix;
- and
- said first layer does not comprise a metal matrix.
7 more elements
A cutting machine, comprising:
- a saw having a carrier blade and a cutting tip;
- said cutting tip having a slab of ultrahard material and a slab of non-ultrahard material;
- and
- said slab of non-ultrahard material, said slabs being generally planar and generally coextensive;
- and further comprising:
- a second cutting tip which does not contain ultrahard material.
3 more elements
Dependencies are inferred from the claim text.