| 摘要 |
The invention provides a firtree-shaped tool and a processing method for impeller blade root using the tool. The firtree-shaped tool at least comprises a tool body; a shovel blade-shaped detachable cutting blade made of ultra-hard alloy and formed by one or two peripheral cutting edges; and a clamping mechanism for assembling the cutting blade on the tool body. The tool is characterized in that any one of the peripheral cutting edges of the cutting blade is equipped with two or more convex parts. The cutting is performed by the convex parts corresponding with the firtree-shaped impeller blade root. The processing method is a cutting method performed by the tool, wherein the cutting is performed after repeated grinding on the premise that the cutting blade is installed on the tool body. |
