The present invention relates to the technical field of turning tools, and discloses an indexable turning blade with an
integrated design for roughing and finishing, the blade comprising an upper surface, a lower surface and a plurality of vertex angles, arc
cutting edges being provided at the vertex angles, a roughing
cutting edge and a finishing
cutting edge being connected to the two ends of the arc cutting edge, respectively, a roughing
chip groove being provided between the roughing cutting edge and the upper surface of the blade, a finishing
chip groove being provided between the finishing cutting edge and the upper surface of the blade, a
chip breaker being provided between the roughing chip groove and the finishing chip groove, the chip breaker being provided between the arc cutting edge and the upper surface, the roughing cutting edge and the finishing cutting edge coexisting between adjacent vertex angles, and the roughing cutting edge and the finishing cutting edge being connected via a transition surface. The present application creatively integrates the cutting edges for roughing and finishing on one blade, and one tool can be used to complete all turning processes when
machining parts, and there is no need to change tools during
machining, which is convenient to use and can effectively improve
machining efficiency. In addition, there is no need to separately manufacture roughing tools and finishing tools, and the tool cost is significantly reduced.