| 摘要 |
A metal shell machining apparatus includes a cutting tool and a pressing tool. The cutting tool has a main body, at least two blade bodies, at least two enlargement portions, and at least two blade heads. The main body is a hollow cylinder, the blade bodies are formed by extending downwards from lower end of the main body, and there are at least two intervals between the blade bodies. The enlargement portions are formed by extending downwards and outwards from lower ends of the blade bodies, the blade heads are formed by extending downwards and inwards from lower ends of the enlargement portions. The pressing tool is a hollow cylinder and encircles a periphery of the cutting tool. The lower end of the pressing tool abuts the enlargement portions of the cutting tool. The apparatus can easily form oblique grooves on a metal plate, reducing manufacture cost. |
