本文首次对热电补偿切削的内、外电路进行了完整的分析。进行了普通切削、绝缘切削、外加电流切削时刀具磨损的对比试验。在本文试验条件下,最佳补偿电流随切削速度增大而向负方向增大,在0～-20mA范围内变动。电路分析和刀具磨损试验的结果还表明,前、后刀面电流方向一致时,刀具磨损剧烈,前、后刀面电流方向相反时,刀具磨损较小。 This article for the first time on the thermoelectric cutting compensation of the internal and external circuits for a complete analysis. Conducted a general cutting, insulation cutting, plus current cutting tool wear comparison test. In the experimental conditions, the best compensation current increases with the cutting speed and increases in the negative direction, varying in the range of 0 ~ -20mA. The results of circuit analysis and tool wear test also show that when the direction of front and back flank faces the same direction, the tool wear is fierce and the tool wear is small when the front and back flank current directions are opposite.