| 摘要 |
PROBLEM TO BE SOLVED: To provide a tool shape and processing conditions suitable for improving processing efficiency more than in a fixed abrasive grain method whose cutting efficiency has been considered to be excellent conventionally, in a processing method to be adapted to cutting processing and grooving processing of a hard brittle material. SOLUTION: By using a fixed abrasive grain tool having a linear blade shape being held by a plating layer 13 formed by electrodeposition of a fixed abrasive grain 12 on a surface of a thin plate metallic base material 11, processing is performed by supplying, to a processing section, a processing liquid in which a free abrasive grain 32 having a diameter smaller than a protruded height H of the fixed abrasive grain from the plating layer 13 of the fixed abrasive grain tool is mixed. For the fixed abrasive grain 12, a diamond abrasive grain is used. For the plating layer 13, a nickel plating layer is suitable. Also, by performing processing by adding relative vibration in a cutting direction of a blade-like tool to a work, processing efficiency is further improved and cut curving can be prevented. According to the above-mentioned method, processing efficiency at the time of continuous processing of a large number of works can be largely improved. |
