| 摘要 |
PURPOSE:To enable a saw to cut even a material of high hardness, by constituting a blade part sintering or electrodepositing an abrasive grain, being composed of one or two kinds of diamond and cubic crystal boron nitride, to one end surface and its adjacent both side surfaces of a saw body. CONSTITUTION:A strip-shaped carbon steel saw body 2 adhesively attaches to its base material end part an abrasive grain of diamond and CBN as a sintered material 4 or an electrodeposited layer 5 with no application of setting work. When the sintered material 4 is used for a saw blade, the saw blade, successively disclosing a new abrasive grain even if the surface abrasive grain is detached falling off by cutting many times a material of high hardness, smoothly performs cutting work unless a blade height part (h) wears. On the contrary, when the electrodeposited layer 5 is used, the saw blade, normally having one layer, decreases a life shorter than that of the sintered layer 4 only in that point, but the blade enables sharp cutting to be performed. While the saw blade, if it forms a plurality of the electrodeposited layers by suitably providing a punched hole in a blade part, obtains an equal effect to the sintered material 4. |
