Tool Tip Temperatures in End Milling – Application of Infrared Radiation Pyrometer with Optical Fibers

抄録

The tool tip temperature in end milling was measured using a two-color pyrometer with optical fibers. The infrared rays radiated from the tool tip were accepted by the optical fiber inserted in the tool insert . They were led to the pyrometer connected by the fiber coupler that transmits the rays outside the machine tool. In up-milling, the temperature continuously increases as the cutting proceeds and peaks at the end of the cutting. In down-milling, the temperature increases as the cutting proceeds and peaks in the middle of the cutting. The supply of oil mist reduces the temperature of tool insert.