Manufacturing process of ceramic watchcase

The invention discloses a manufacturing process of a ceramic watchcase, which comprises the following steps of: performing grinding, mould pressing, degreasing and sintering on zirconia powder to form a ceramic watchcase structure, and setting the single-side allowance of a rough blank to finish the sintering of the rough blank; a cradle type BC structure five-axis linkage machine tool is used for conducting three-dimensional chamfering on the corners to be machined of the watchcase structure at a time, and rough machining and finish machining are conducted on the three-dimensional chamfers twice till the design size requirement is met; then the three-dimensional chamfering part is polished, and other surfaces are kept in the original blank state; and carrying out finish machining on other curved surfaces of the appearance of the watchcase structure by adopting a five-axis linkage machine tool. According to the manufacturing process of the ceramic watchcase, the corner angles of the ceramic watchcase are prov