Internal-cooling PCD (Polycrystalline Diamond) composite cutter

• Main Authors: ZHU AOPING, XUE CAIHONG, ZHU JUN, LIU LIHUA
• Format: Patent
• Language: Chinese; English
• Published: 05.04.2022
• Subjects: BORING; BROACHING; FILING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOTOTHERWISE PROVIDED FOR; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; PLANING; SAWING; SCRAPING; SHEARING; SLOTTING; TRANSPORTING; TURNING

The utility model relates to an internal cooling PCD composite cutter, which comprises a cutter body and a cutter handle, the cutter body comprises a milling section and a drill bit, the milling section is integrally formed at one end of the cutter handle, the drill bit is detachably mounted on the milling section, and the milling section comprises a first machining part, a transition part and a second machining part which are sequentially connected. The first machining part comprises two continuous step cutting blades which are arranged on the outer edge and are in central rotational symmetry, the second machining part comprises two groups of step blades which are fixed on the outer edge and are in central rotational symmetry, the drill bit extends into the milling section, a cooling channel is formed in the cutter handle, and the cooling channel is communicated with the cooling channel. And the cooling channel extends to the tail end of the drill bit from the tail end of the cutter handle. The composite too