Combined milling cutter with PCD inserts and micro blades

The invention discloses a combined milling cutter with PCD inserts and micro blades. The combined milling cutter comprises a cutter body and the PCD inserts arranged on the cutter body. The cutter body is provided with a plurality of main cutting edges, main chip grooves are formed between the main cutting edges, and the vertical sections of the main chip grooves in the extending direction are arc-shaped or V-shaped; the PCD inserts are embedded at the front ends of part of the main cutting edges; and the micro blades are arranged on the rear cutter surfaces of the main cutting edges which are not provided with the PCD inserts. According to the technical scheme, the service life of the milling cutter can be greatly prolonged on the premise that the machining quality is guaranteed. 本申请公开一种具有PCD镶片及微刃的组合铣刀，包括：刀体和设置于刀体的PCD镶片；所述刀体设有若干主切削刃，所述主切削刃之间形成主排屑槽，所述主排屑槽在其延伸方向上的垂直截面呈圆弧型或V型；部分主切削刃前端嵌设有PCD镶片；其中未设有所述PCD镶片的主切削刃的后刀面设有微刃。本申请提供的技术方案，能够保证加工质量的前提下大幅度提高铣刀的寿命。