Indexable cutting blade with chip breaking structure

The invention discloses an indexable cutting blade with a chip breaking structure. The indexable cutting blade comprises a blade body, the blade body is provided with a plurality of arc cutting edges,the cutting edges comprise edge points located on the edge of the blade body and chip breaking grooves connected with the edge points, and the chip breaking grooves are each of a groove structure composed of a circular arc face and an inclined face. The cutting edges of the indexable cutting blade are provided with the chip breaking structure, when the edge points cut workpieces, produced continuous cut chips sequentially passes through the chip breaking grooves composed of the circular arc faces and the inclined faces, the continuous cut chips fall down from the workpieces in the cutting process, so that effective chip breaking is achieved, the continuous cut chips can be prevented from being wound on the surfaces of the workpieces during finish machining of titanium alloy, workpiece precision and surface smooth