Measurement of cutting tool temperature by an infrared pyrometer
Measurement of cutting tool temperature by an infrared pyrometer
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DOI：
10.1088/0957-0233/12/8/335
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发表时间：
2001-08
影响因子：
2.4
通讯作者：
Jehnming Lin;C. Liu
中科院分区：
文献类型：
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作者：
Jehnming Lin;C. Liu
开发了一种带有光纤的红外 (IR) 高温计系统，用于测量车削过程中切削刀具的温度。将高温计系统的温度读数与在类似于切削条件的焊接条件下工具钢的显微照片进行比较。可以看出，使用光纤的红外高温计测量的工具温度比传统热电偶技术等其他在线方法获得的结果更准确。本研究采用了基于切削刀具温度轮廓模型映射的一维椭球映射系统。它被用作外推方案，根据切削刃附近测量的表面温度来预测刀具切屑温度。对于切削速度高达 600 m min-1 的陶瓷和硬质合金刀具，计算结果与冶金证据之间具有良好的一致性。
An infrared (IR) pyrometer system with an optical fibre was developed for measuring the temperature of a cutting tool during turning. The temperature reading of the pyrometer system was compared with the micrographs of the tool steels under welding conditions similar to those of cutting. It can be seen that the temperature of the tool measured by the IR pyrometer with an optical fibre is more accurate than that obtained by other on-line methods such as the conventional thermocouple technique. A one-dimensional ellipsoidal mapping system based on a model mapping of the temperature contours in the cutting tool was adopted in this study. It was used as an extrapolation scheme to predict the tool-chip temperature from the surface temperature measured near the cutting edge. There is a good agreement between the calculations and the metallurgical evidence for ceramic and carbide tools at cutting speeds up to 600 m min-1.