DIMPLED CIRCULAR SAW BLADE

摘要

An improved circular saw blade having first and second planar surfaces is provided which has a plurality of dimples which formed one or both of such surfaces o f the blade. The dimples each have a perimeter and include a circumferential ridge which extends above the surfaces of the body of the blade. When a side load is applied to the wo rk piece, the ridges contact one of the walls defining the kerf being cut that is forced b y the load against the blade, so that the surface of the body of the blade is spaced from the wall. The dimples are preferably formed by cold working the blade, which stiffens the blade, a nd reducing the vibration of the blade during the cutting procedure. The dimples and their ridges also provide greater heat dissipation, and tend to provide a laminar flow of air over the surface of the blade, acting much as the dimples of a golf ball.