TEMPERATURE FIELD OF OUTER CHIP SURFACE
DOI:
https://doi.org/10.20535/2305-9001.2012.64.53214Keywords:
temperature, heat, chips, model, pyrometerAbstract
In recent years, machining simulation techniques have received considerable development. To ensure the practical use of the numerical models, they have to be experimentally approved and "calibrated" on the various indicators. The article analyzed the possibility of a "calibration" on the temperature of a chip outer surface. By comparing the experimental data on the temperature of the chip outer surface with the results of analytical modeling it was shown that the temperature field of the chip outer surface formed mainly by the heat generated during plastic deformation in the zones of primary and secondary deformation. Experimental investigations carry out at the special test bed for the orthogonal cutting. The stand of the test bed is made from massive polymer concrete slabs und carries the tool holder, which is mounted in gantry design. The measuring of the chip outer surface temperature isobtained with a high-speed pyrometer. This pyrometer ensures the measurement of chip outer surface temperature by for this material determinate cutting speed range. The measurement of cutting forces and cutting temperature realize with the hardware of National Instruments company and software of LABVIEW. The recording and processing of the signals with hardware is based on a multi-functional measuring board, which is integrated in the measuring computer.
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