COMPOSITE CIRCULAR AND ROTARY CUTTING TOOL

摘要

A circular cutting blade is provided in which the body is a synthetic fiber glass reinforced material which has a metallic hub and an outer cutting ring made from high speed steel, tungsten carbide, ceramic material or other cutting materials for a particular application. The outer cutting ring has an inwardly projecting tenon portion that has periodic trapezoidal recesses. The body of the blade is integrally molded about the tenon filling the recesses with the molded body to form torque projections to ensure that the outer ring is driven integrally with the blade body during cutting operations.