For example the mineral material the rotary tool which is formed fairs form of the sapphire, fairs the optical surface of the crystal for the especially clock

摘要

Topic The hard mineral material the device and the method of forming are offered.Solutions The end the head (20a) the rotary tool which includes the substance which is formed, the active surface which contacts with the territory of the aforementioned mineral material (200) has the device of this invention. The head of the aforementioned rotary tool (20a), one which opens the aforementioned active surface (200) toward leaning 1st slot (210,220) it possesses at least, among those opening (210a and 220a) forms, the grinding particle (500), is transported by the aforementioned territory, the aforementioned active surface (200) is received inside, opening on the aforementioned active surface (210a and 220a) parallels, forms the kind of edge for cutting which forms the form which is needed. The tool of this invention, the hard transparent mineral material (forms deformation optical surface such as example, sapphire, corundum and the spinel) lens. Method of this invention is the method of machining the mineral material making use of this kind of tool.